Additional Reinforcement Research Articles

Expanded Perlite-Reinforced Alginate Xerogels: A Chemical Approach to Sustainable Building and Packaging Materials

In sustainable construction and packaging, the development of novel bio-based materials is crucial, driving a re-evaluation of traditional components. Lightweight, biodegradable materials, including xerogels, have great potential in architectural and packaging applications. However, reinforcing these materials to improve their mechanical strength remains a challenge. Alginate is a promising matrix material that may be compatible with inorganic fibrous or particulate materials. In this study, biocomposite xerogel-structured foam materials based on an alginate matrix with expanded perlite reinforcement are improved using certain additives in different weight ratios. The plasticizers used include glycerol and gum arabic, while chitosan was added as an additional reinforcement, and iota carrageenan was added as a stabilizer. The tested specimens, with varying weight ratios of the added components, showed good mechanical behavior that highlights their potential use as packaging and/or architectural materials. The influence of the presence of different components in the composite material specimens on the modulus of elasticity was investigated using SEM images and FTIR analyses of the specimens. The results show that the specimen with the largest improvement in the elastic modulus contained a combination of chitosan and glycerol at a lower percentage (1.96 MPa), and the specimen with the largest improvement in tensile strength was the specimen containing chitosan with no plasticizers (120 kPa), compared to cases where combinations of other materials are present.

A Case of Posterior Tracheal Wall Rupture During Tracheostomy Treated With Sternocleidomastoid Muscle Reinforcement

A posterior tracheal wall rupture is a rare but life-threatening complication of tracheostomy. Several flaps based on the sternocleidomastoid (SCM) muscle, which has sufficient length and abundant blood supply, are utilized for the reconstruction of tracheal defects. We discuss here a case of a 71-year-old male with multiple organ failure and mental retardation, with posterior tracheal wall damage that had occurred during tracheostomy tube insertion. When planning the repair of the wound, additional reinforcement was necessary due to saliva leakage secondary to decreased consciousness. Direct suturing was followed by the reinforcement of SCM muscle transposition, which was conducted through cervical and endoscopic approach.

Static Voltage Stability Analysis with the Integration of Distributed Generation: An Albanian Case Study

Modern power networks face significant operational uncertainties that can threaten the stability of the power grid, due to the rising integration of distributed generation (DG), particularly from renewable energy sources, such as photovoltaic plants. The integration of distributed generation (DG) into power systems has become a pivotal factor in enhancing the efficiency and sustainability of electricity supply. This paper presents a detailed static voltage stability analysis of the Albanian power grid, focused on the effects of the Karavasta Photovoltaic Park, one of Albania’s largest renewable energy projects. Using a combination of P-V and Q-V curves, V-Q sensitivity analysis, and modal analysis, the study reveals significant improvements in the system’s voltage stability following the integration of the PV plant. The NEPLAN software is used for voltage stability analysis. Particularly, the reactive power margin at the critical node Nst. Babice increased considerably from -82.009 MVAr to -1061.2 MVAr, while the system’s loading margin improved from 99.08% to 101.97%, demonstrating that the integration of large-scale PV generation enhances voltage stability by providing additional reactive power support and improving the grid’s resilience to voltage collapse. Furthermore, the modal analysis identified the Bistrice-Delvine-Sarande buses as the system’s weakest points, highlighting areas where additional reinforcement is required. As more renewable energy has to be integrated into the grid, the study also emphasizes the importance of making targeted interventions at critical buses and branches to ensure long-term stability. The results of this research are essential for Albania’s energy transition as the country seeks to diversify its energy sources, especially solar power. More generally, the methodologies and results in this paper provide a suggestion for maintaining power system voltage stability with increased renewable energy penetration.

Usefulness of Suture-Tape Augmentation Based on Intraoperative Ankle Stress Radiographs During Anatomical Ligament Repair for Chronic Lateral Ankle Instability.

During the modified Broström procedure for chronic ankle instability, surgeons often experience cases with insufficiently restored mechanical stability even after anatomical ligament repair. In these cases, longer postoperative immobilization and delayed rehabilitation can be required, and a risk for recurrence of instability may persist. This study aimed to evaluate the clinical usefulness of suture-tape augmentation based on intraoperative stress radiographs during anatomical ligament repair for chronic ankle instability. Twenty-four patients who underwent additional suture-tape reinforcement because of residual mechanical instability on intraoperative stress radiographs were followed up ≥3 years. Clinical assessment was performed using the Foot and Ankle Outcome Score (FAOS) and Foot and Ankle Ability Measure (FAAM). Changes in mechanical stability were analyzed through periodic stress radiographs, and postural control ability was evaluated with the modified Romberg test. FAOS and FAAM scores improved significantly from preoperative mean 55.1 and 52.4 points to 92.3 and 90.2 points at final follow-up, respectively (P < .001). Talar tilt angle and anterior talar translation improved significantly from preoperative mean 15.8 degrees and 13.6 mm to 2.9 degrees and 4.2 mm, respectively (P < .001). Balance retention time improved significantly from preoperative mean 3.6 to 6.4 seconds (P < .001). Although 9 patients experienced sprain injury after surgery, no patient showed recurrence of mechanical and subjective instability, and 21 patients (87.5%) were able to return to preinjury level of sports activity. Evaluation of residual mechanical instability through intraoperative stress view and additional suture-tape augmentation showed satisfactory clinical outcomes at midterm follow-up. Suture-tape augmentation based on intraoperative stress radiographs seems to be a useful surgical option for patients with insufficiently restored mechanical stability even after anatomical ligament repair. This combined procedure can provide a reliable mechanical stability that can be performed after recognition of residual instability during the index surgery.

New in assessing the fire resistance of reconstructed reinforced concrete ribbed building panel

The article describes the innovative application of a methodology for assessing the design fire resistance of a reconstructed reinforced concrete ribbed floor panel based on the criterion of the occurrence of a limit state based on loss of load-bearing capacity. In this case, the fire resistance limit of a bending element is established without thermal force destruction based on a set of single quality indicators of structural concrete and reinforcing steel, which simplifies engineering calculations and reduces the cost of expensive experiments. The results of a study of the influence of the geometric dimensions of a reconstructed reinforced concrete ribbed panel, the heating scheme of the design section in fire conditions, the placement of the main and additional reinforcement in the design section, the depth of the cores of the main and additional reinforcement and the degree of its fire protection, the thermal diffusion coefficient of structural concrete, the magnitude of the test load on the panel are presented. and the intensity of stress in the rods of longitudinal working reinforcement to the design fire resistance indicator, which is established based on the loss of load-bearing capacity. The use of the new proposed technical solution makes it possible to determine the design fire resistance of a reconstructed reinforced concrete ribbed panel without natural thermal force effects, simplifies engineering calculations, increases the reliability of statistical quality control of reinforced concrete materials and non-destructive tests, and reduces experimental costs.

INTRACRANIAL ARTERIAL LOOP WITH A COMPLEX PARTIALLY THROMBOSED LARGE ANEURYSM ON THE POSTERIOR CIRCULATION: WHAT TO DO NEXT?

Introduction Managing intracranial aneurysms in the posterior circulation is particularly challenging due to anatomical complexities and the high risk of rupture. The presence of a large, partially thrombosed aneurysm adds another layer of difficulty. This report details the case of a 66-year-old female patient presenting with a symptomatic intracranial arterial loop and a large, partially thrombosed aneurysm in the posterior circulation, successfully treated through microsurgical clipping. Material and Methods A 66-year-old female with a history of intermittent headaches, vertigo, and diplopia underwent neuroimaging, including computed tomography angiography (CTA) and magnetic resonance imaging (MRI). Imaging revealed a large aneurysm in the posterior circulation, with partial thrombosis and an associated intracranial arterial loop. The patient was scheduled for a craniotomy to perform microsurgical clipping of the aneurysm. Two titanium aneurysm clips were applied to achieve complete occlusion. Results Intraoperative findings confirmed the large, partially thrombosed aneurysm arising from the basilar artery, with a complex arterial loop intricately intertwined with the aneurysm and adjacent neurovascular structures. The first clip was placed to secure the primary inflow, and the second clip provided additional reinforcement. Postoperative imaging demonstrated successful clipping with no residual aneurysm filling. The patient had an uneventful recovery with no immediate postoperative complications. Clinically, the patient reported significant improvement in symptoms, with a complete resolution of headaches and vertigo. Conclusions This case highlights the challenges and considerations in managing large, partially thrombosed aneurysms in the posterior circulation, particularly in the presence of an intracranial arterial loop. Successful management requires precise microsurgical technique and careful intraoperative decision-making. Further research is needed to optimize treatment strategies, potentially incorporating adjunctive endovascular techniques to enhance surgical outcomes.

Investigation of band-beam slabs subjected to close-in blast loading - Experimental and numerical study

"Band-beam slab" or "slab with a shallow beam" are widely used in contemporary multi-level building construction and are particularly common in lower levels and basements. These slabs are favoured for conserving space and reducing floor-to-floor heights. Consequently, understanding how band-beam slabs perform when exposed to close-range detonations is essential for critical infrastructure projects and has not been previously studied in the literature. With recent terrorism events where portable explosives ranging from 2 kg to 10 kg are more common, a close-in detonation can significantly affect the structural integrity of civil infrastructure. Thus, this study aims to examine the behaviour of band-beam slabs when subjected to close-in detonations. The paper presents both experimental results and validated Arbitrary Lagrange-Euler (ALE) numerical framework to study and assess the damage of the slabs under various loading conditions and slab designs. A total of six band-bean panels are subjected to close-in detonations of Composition-4 (C4) charges. Initially, validation of the numerical modelling is performed where damage in terms of spall crater sizing and crack patterns are observed. It was shown that the numerical modelling technique could predict crater sizes within 15 % of the area, and crack propagation, including patterns, was appropriately captured. Through numerical modelling parametrisations, it was shown that confinement detailing, such as the use of C-hooks, close spacing of shear reinforcement, and additional reinforcement in the beam-to-slab transition zone can drastically improve the performance of the panel in terms of spalling damage and deflections. Finally, it was shown that the spalling, global and local deformation can be minimised with appropriate detailing. Design recommendations for additional reinforcement to control and mitigate spalling, cracking and scabbing were proposed.

Application of Numerical Integration in Analysing the Volume of Reinforcement Particles in Algorithms for Generating Representative Volume Elements (RVEs)

Abstract The paper focuses on spatial modelling of composites with discontinuous reinforcement. The algorithm for creating a representative volume element (RVE) must consider random distribution and size of reinforcing particles (RP), prevention of RP interpenetration, and maintaining the desired volume fraction of the reinforcing phase (Vp) in the composite microstructure. Assuming fixed RVE dimensions and randomly determined RP size, the actual Vp value needs to be continuously determined. If the assumed (desired) Vp is lower than the current value, additional reinforcement is added to the RVE. As the RP location is random, some particles may extend beyond the RVE limits, affecting Vp calculation. The research aims to determine the RP volume within the RVE boundaries when RP extends outside. The RVE was discretized with N points, and the number of Ni points within the area occupied by RP was determined. The sought value was calculated using the ratio Ni /N = Vp /VRVE, where VRVE, is the volume of the RVE. Two discretisation methods, systematised (RI) and random (Monte Carlo (MC)), were employed. The study investigated the effects of discretisation type and number N points on calculation accuracy and microstructure generation time for particle-reinforced composites in sphere, cylinder, and ellipsoid shapes. Systematised discretisation yielded higher accuracy/stability, with number N dependent on RP dimensions. The MC method reduced generation time but introduced instability and significant errors.

Full robustness-based decision-making computational approach for RC structures subjected to multiple hazards

Existing RC structures show accidental loadings vulnerabilities because of inadequate design detailing causing in premature failure. The installation of a certain reinforcement measure on the susceptible structure is a common option to mitigate these fragility. At this time, reinforcement measures aided by the participation of stakeholders are crucial to combat multiple hazards. However, previous studies did not necessarily dealt with the integration multi-hazard loss, multi-uncertainty, and dependence configuration in a performance-based engineering decision-making framework, to retrofit selection from the robustness of structures perspective. In this paper, an efficient fuzzy full robustness-based decision-making framework is proposed to tackle the challenge of integration of multi-uncertainty and dependence, and further to avoid biased strategies. This framework contained Probabilistic Multi-hazards Fuzzy Global Vulnerability (PMFGV), Loss (PMFGL), and Robustness Assessment (PMFRA) for structures, by incorporating the fuzzy theory and Vine-Copula tree structure. The mentioned robustness index can be used as a reference indicator in the rehabilitation and retrofitting planning. The PMFRA-based making-decision methodology is applied to RC structures with three design schemes, which were established the platform OpenSEEsPy. Results confirm that the established assessment framework is effective in evaluating actual RC structures’ robustness. The fuzzy full robustness index for the frame S-RC, SS-RC, and RS-RC, was < 0.327, 0.421, 0.470 > , < 0.400, 0.503, 0.523 > , < 0.356, 0.453, 0.507 > , respectively. Whether the robustness-cost-based or the Cumulative Prospect Theory-based, the robustness of the reinforcement strategy with the installation of secondary beam (SS-RC) outdistance that of the additional reinforcement ratio (RS-RC). Such parameters are suggested as reasonable and meaningful making-decision index for selecting the optimal retrofitting schemes for structures subjected to multiple hazards, which leads to a balance between the enhancement of full robustness and reduction of life cost.

Investigating the Effect of Steel Wire and Carbon Black from Worn Out Tyre on the Strength of Concrete

Technology in concrete is rapidly developing to improve the quality and properties of concrete. One of the many recycled materials is worn-out tyres. Currently, the use of tires is very widespread considering the use of vehicles that increase from time to time. Piles of discarded tires can cause a lot of damage to the environment. So, by using steel wire waste (SWW) as new fiber reinforcement in concrete and with the combination with carbon black (CB), it is hoped that, by doing this, not only it could improve the quality of concrete, but also preserves the environment. Therefore, the objective of this research was, to identify the properties of fresh concrete with the addition of SWW and CB, and also to investigate the physical and mechanical properties of hardened concrete, incorporating of SWW as additional fiber reinforcement and CB. For fresh concrete, workability using a slump test was conducted. Several tests were carried out on the properties of hardened concrete. Among them were compressive strength, flexural strength, splitting tensile strength, and water absorption. The physical appearance of the concrete has also been examined and recorded. There are four batches of concrete which consist of one control batch and three batches of concrete with various weights of SWW which are in the portion of 300 g, 600 g, and 900 g, and the weight of CB is maintained at 300 g for all batches. For workability, all concrete batches with the addition of SWW and CB show acceptable workability. For the case of the density of fresh concrete, samples containing 900 g addition of SWW have the highest density which was 2520 kg/m³, as expected. Results for water absorption show that the lowest value is contributed by the control sample which was 7.6%. For compressive and flexural strength, 300 g addition of SWW has the highest value which was 28.52 MPa for compressive strength and 7.52 MPa for flexural strength. Lastly, for splitting tensile strength, the highest value was also obtained when 300 g addition of SW was added which was 5.4 MPa. To conclude, SWW and CB can be added to concrete to obtain comparable strength of concrete. However, some modifications could be made to both recycle materials to improve concrete performance.

An Organic-Inorganic Hydrogel with Exceptional Mechanical Properties via Anion-Induced Synergistic Toughening for Accelerating Osteogenic Differentiation.

Mineralized bio-tissues achieve exceptional mechanical properties through the assembly of rigid inorganic minerals and soft organic matrices, providing abundant inspiration for synthetic materials. Hydrogels, serving as an ideal candidate to mimic the organic matrix in bio-tissues, can be strengthened by the direct introduction of minerals. However, this enhancement often comes at the expense of toughness due to interfacial mismatch. This study reveals that extreme toughening of hydrogels can be realized through simultaneous in situ mineralization and salting-out, without the need for special chemical modification or additional reinforcements. The key to this strategy lies in harnessing the kosmotropic and precipitation behavior of specific anions as they penetrate a hydrogel system containing both anion-sensitive polymers and multivalent cations. The resulting mineralized hydrogels demonstrate significant improvements in fracture stress, fracture energy, and fatigue threshold due to a multiscale energy dissipation mechanism, with optimal values reaching 12MPa, 49kJm-2, and 2.98kJm-2. This simple strategy also proves to be generalizable to other anions, resulting in tough hydrogels with osteoconductivity for promoting in vitro mineralization of human adipose-derived mesenchymal stem cells. This work introduces a universal route to toughen hydrogels without compromising other parameters, holding promise for biological applications demanding integrated mechanical properties.

Fermentative production of 3-hydroxypropionic acid by using metabolically engineered Klebsiella pneumoniae strains

3-Hydroxypropionic acid (3-HP) is an industrially important platform chemical for super-absorbent or biodegradable polymers. Its production via biological methods is expected to be more competitive than chemical methods. Klebsiella pneumoniae is the most promising host due to its innate capabilities for 3-HP and vitamin-B12 production, ease of culture, and ease of engineering. In this study, step-by-step metabolic engineering and fermentation technologies were used to enhance the production of 3-HP. K. pneumoniae-derived ydcW gene was overexpressed using a plasmid after screening candidate genes. Major competing pathways encoded by dhaT, yqhD, ldhA, glpK, poxB, and pta-ackA were blocked. Additionally, it was demonstrated that simultaneous reinforcement of two native aldehyde dehydrogenase encoded by the ydcW gene preferring NADPH and the puuC gene preferring NADH, synergistically improved 3-HP production. Additional reinforcement of the acs gene to reduce acetate accumulation resulted in 93.7 g/L of 3-HP with a yield of 0.42 g/g·glycerol over a 72-h fed-batch fermentation. This performance is deemed sufficient for industrial applications.

Safety Factor Analysis on the Stability of the Retaining Wall Structure in Cimahi City, Indonesia

Retaining wall is a construction built to hold the ground on the slopes. Retaining wall can be said to be safe if its safety factors have been taken into account.In this study will be calculated the security factor based on SNI 8640:2017 on the location to be built retaining wall located in the area of Cimahi City, West Java using the help of software with two-dimensional finite element method.Based on the soil type map, the majority of the Cimahi City area consist of Tuffaceous Clay and Sandy Clay soils, which are alluvial fan deposits of volcanic origin, with soil thickness ranging from 1 m to 5 m. Retaining wall structures using cyclopean concrete appear to be slimmer compared to those using stone masonry. The use of dolken wood piles as additional reinforcement in locations using cyclopean concrete can strengthen the structure on the sliding plane, thus preventing overturning. Based on the modeling, the use of this structure resulted in a safety factor value greater than 1.5, with a displacement of 20 cm.

Viscoelastic performance analysis of steel strip embedded E-Glass fibre hybrid laminate

ABSTRACT Fibre metal laminates (FMLs) are a combination of metal alloys and composite materials that have been utilised for years to meet customised performance requirements. Seven distinct material configurations with three different layup sequences have been studied for investigation of viscoelastic performance parameters i.e. storage modulus, loss modulus and damping factor. The effect of EN42J steel as an additional reinforcement along with E-glass fibre epoxy laminate on the enhancement in the dynamic mechanical behaviour of the hybrid laminate was studied. The viscoelastic behaviour of the hybrid laminate was experimented, and the results obtained were interpreted on the basis of storage modulus, loss modulus and damping parameter. The enhancements in dynamic mechanical properties were noted with an increase in the volumetric quantum of reinforcement and placement of steel strips at optimum location across the thickness of the specimen.

Parametric analysis on mechanical performance and additional reinforcement design method of reinforced concrete chimneys with openings

Parametric analysis on mechanical performance and additional reinforcement design method of reinforced concrete chimneys with openings

806. MINIMALLY INVASIVE REVISION FUNDOPLICATION, IS IT SAFE AND FEASIBLE? SINGLE CENTER EXPERIENCE

Abstract Introduction Laparoscopic fundoplication has become standard of care for patients with refractory gastroesophageal reflux disease, large and symptomatic hiatal hernia. Failure rate for laparoscopic fundoplication was between 2 to 17%. Doing Revisional Antireflux surgery is technically difficult. Our aim is to analyse symptomatic improvement post surgery, safety and durability of procedure in patients who underwent revision fundoplication at our centre Patients and Methods 22 patients underwent Minimally invasive revision fundoplication between January 2019 to January 2022 were taken into study, of them 12 gentlemen and 10 women were noted. Modified DeMeester score was calculated in all patients preoperatively and on 6 months follow up. Results All patients underwent primary surgery laparoscopically. 14 patients (63.6%)had recurrent reflux symptoms and 8 patients (36.3%) had severe dysphagia. Revision fundoplication was done laparoscopically in 20 patients and 2 patients Robotic surgery was done. Intraoperatively 11 patients had wrap migration, 8 patients had tight wrap, 3 patients had twist of wrap. In the re-do anti-reflux surgery (ARS) procedure, floppy Nissen fundoplication was performed in 86.4% of the patients, which amounts to 19 patients., and 3 patient underwent a 270-degree Toupet fundoplication. In 2 patients, additional composite mesh reinforcement was employed. 13.6 % of patients had intraoperative complications, 9.09 % of patients had pleural injury, 4.7 % had intraoperative bleeding, 9.09% of patients had gallstone disease, for which cholecystectomy was done. All patients anterior and posterior vagus identified and preserved. On follow up 80% of patients had resolution of symptoms, 18% needed intermittent PPI. At a median follow up of 18 months, no surgical failure was noted in endoscopy. Conclusion Laparoscopic revision fundoplication is a safe procedure when operated in a high volume centre by an expert surgeon.

MODIFICATION OF THE EXTENDED TUBE MODEL (METM) FOR THE CHARACTERIZATION OF FILLED VULCANIZATES

ABSTRACT The aim of this study is to develop a material model for filled vulcanizates that is physically justifiable. This model builds upon the established extended tube model and is incorporated into a finite element program. The research demonstrates that the intrinsic deformation concept is inadequate for describing nonlinear deformation behavior under the assumption of incompressible, isotropic materials. Consequently, an alternative approach is proposed, employing a strain function rather than direct use of principal strains, to characterize reinforcement behavior. This strain function aligns with the first invariant of the right Cauchy-Green strain tensor over a wide deformation range. At minor deformations, the entanglements’ contribution is considered through an additional reinforcement term. The novel reinforcement function is depicted as a sum of three elements, each representing reinforcement at different strain levels: low, medium, and high. Experimental comparisons show that the Modified Extended Tube Model (METM) effectively captures the stress-strain response of filled systems across all deformation levels. Furthermore, the reinforcement function parameters, derived from fitting the METM to experimental data, offer a quantitative assessment of the fillers’ reinforcing effects, while the extended tube model parameters reflect the network characteristics.

Experimental and Analytical Study on Non-Damaged Reinforcement Method for Pipe Rack Steel Structures

Pipe racks are steel structures that support various pipes transporting materials in industrial complexes. The pipes on pipe racks may transport hazardous substances, which imposes limitations on their structural reinforcement. Therefore, this study aimed to propose methods for reinforcing the joints of pipe rack structures through non-welding and non-drilling techniques. The joints of pipe rack structures were connected by end plates. Initially, this study evaluated the capacity of existing end plates in a real-world experiment and conducted cyclic loading tests with two additional reinforcement methods to validate their performance. Finally, finite element analysis was conducted to explore additional variables that were not covered in the experiments, and the optimal reinforcement method that demonstrated the best performance was proposed.

Synthesis and characteristics of natural fiber reinforced nano hybrid composite – an experimental study

Abstract Recently, research on natural hybrid composites has occupied a significant role in the materials science sector. Due to the low density, high specific strength, dimensional stability, and biodegradability, natural fiber composite has become a predominant research area. The present study deals with the fabrication of a jute–banana fiber hybrid composite using the hand layup method with compression molding. A fixed concentration of 5 % carbon nanotubes (CNT) is included over the fiber surfaces as an additional reinforcement material to improve their thermal and electrical conduction properties. The prepared composite material is subjected to different fiber loading (0, 10, 20, and 30 wt.%) with jute and banana weight ratios of 1:1, 1:3, and 3:1. The investigation is conducted for testing the physical, mechanical, and thermal properties of the prepared composites along with morphological studies. Final results revealed a maximum longitudinal tensile strength of 68.8 MPa, 67.0 MPa, and 86.7 MPa and the maximum transverse tensile strength of 41.2 MPa, 40.5 MPa, and 48.0 MPa at 30 wt.% with respective fiber ratio of 1:1, 1:3, and 3:1. The maximum longitudinal flexural strength of this hybrid composite is noticed as 94 MPa, 90 MPa, and 103 MPa for the weight ratio of 1:1, 1:3, and 3:1. Higher impact energy is obtained for the composition ratio of 1:3 (JBC 1:3) which has more banana fiber than the other two. A new attempt at adding carbon nanotubes has improved their thermal conductivity compared to regular composites of jute–banana.

Lightweight, compressible, elastic resorcinol-formaldehyde aerogels with cobalt-ligand-enhanced cross-linked skeletons

Resorcinol-formaldehyde (RF) aerogel materials exhibit remarkable properties such as low density, ablation resistance (high residual carbon rate), easily regulated pore structure and low thermal conductivity, making them promising for applications in adsorption, medicine and aerospace, among others. However, since their inception, RF aerogels have suffered from disadvantages such as brittleness and long preparation cycles, which have severely limited their widespread use. In order to improve the mechanical properties of RF aerogels, this paper presents a new synthetic route for obtaining strong elastic properties without introducing additional fiber reinforcement. Here, a lightweight, compressible, elastic resorcinol-formaldehyde aerogel with cobalt-ligand-enhanced cross-linked skeletons was prepared by sol-gel and freeze-drying methods using an alkali metal salt (cobalt (II) acetate) as a cross-linking agent and sodium acetate as a catalyst. The coordination of metal ions (Co2+) with resorcinol resulted in the formation of a structure analogous to a metal-phenolic network (MPN), which altered the crosslinking mode and degree of crosslinking of the RF aerogel. This process led to the thickening of the skeletal structure of the sample. Concurrently, a multilayered pore structure was generated within the interior under the appropriate pH conditions, which contributed to the strengthening of the skeleton of the samples and a reduction in thermal conductivity. The obtained RF-Co aerogel can withstand 68.6 % compression change without fracture and shows good elastic deformation at 35 % compression rate, while the aerogel exhibits low thermal conductivity (0.039 W (m K)−1) and low density (0.09 g cm−3).