Universal Tensile Testing Machine Research Articles

Investigation of the effect of sloping head fault in solid riveting on the strength of the joint

PurposeThe purpose of this study is to investigate how the sloping head fault in solid riveting affects the strength of the joint and to develop an efficient system for the solution of the problem.Design/methodology/approachFor rivet joints, 1.2-mm thick 2024-T3 plates were used. AD 2117 T4 solid rivets with a diameter of 3.2 mm were chosen for the joints. A new riveting mechanism has been created unmatched in the literature for solid rivets. In the riveting process, the bucking bar surface is positioned at a right angle to the riveting process axis. Alternative 5°, 10° and 15° fault angles were obtained. During the riveting process, a total of eight different test samples were produced, four for each of the tension-shear and cross-tension joints, by making 0°, 5°, 10° and 15° angles to the bucking bar. To determine the mechanical properties of the prepared samples, cross-tensile and linear tensile-shear tests were performed on a universal tensile testing machine. Special apparatus has been designed and produced for cross-tensile tests.FindingsAs a result of the tensile-shear tests, the decrease in the joint at 15° was 25% compared to the joint at 0°. There is no systematic change in elongation. As a result of the cross-tensile tests, there was a decrease in the cross-tensile force toward the sample with an error of 15°. Compared to the 0° joint, this decrease was approximately 14.5% in the 10° joint, while the decrease in the 15° faulty joint was 25.8%. It has been understood that riveting with an angle of 0° affects the strength very much.Originality/valueA new riveting mechanism has been created unmatched in the literature for solid rivets. Experimentally, it has been shown that forged rivets can be made very economically and properly. It has been experimentally proven how much the rivet head shape formed in the wrong forged rivet application changes the result.

Ion induced effects and defects on surface, structural and mechanical properties of Ni ion irradiated titanium

Abstract Effect of 2 MeV Ni+ ion beam irradiation with varying fluences on the surface, structural, and mechanical characteristics of titanium will be explored. For this objective, titanium targets were exposed to nickel ions obtained from a pelletron linear accelerator with 2 MeV energy and various fluences extending from 3 × 1012 to 7 × 1015 ions/cm2. Penetration features and damage evolution of 2 MeV Ni-ion in titanium have been estimated by employing SRIM-2013 software. Various characterization tools were employed to confirm the modifications in the ion beam irradiated targets. The surface and crystallographic variations of ion beam irradiated targets were explored by employing a scanning electron microscope (SEM) and X-ray diffractometer (XRD). Tensile testing and microhardness analysis was performed by utilizing a software-controlled 50 KN universal tensile testing machine and Vickers’s hardness tester, respectively. The SEM analysis represents random and irregularly distributed sputter morphology for lower ion fluences. With the increase of ion fluence, the pores keep growing radially while the growth rate slows down. At the highest ion fluence, localized melting, evaporation and expulsion of surface material were recorded at the irradiated zone. The X-ray diffraction analysis revealed no additional phases to be developed in the Ni-ion treated titanium. However, a variation in the peak intensity and slight angle/position shifting was reported, which depicts the creation of ion-induced stresses and defects. The mechanical testing results indicated the variations in the mechanical characteristics (yield stress, ultimate tensile stress, hardness etc.) of irradiated titanium. The hardness, yield stress and ultimate tensile strength increased monotonically with the increase of ion fluence. The reported modifications in the mechanical characteristics of irradiated titanium are in good accordance with structural and surface modifications. The stated changes in the irradiated titanium are ascribed to the development of ions induced stress as well to creation, augmentation/expansion, recombination, and annihilation of the ion-induced defects.

Results of Evaluation of the Physical and Mechanical Properties of a New Suture Material with Miramistin Coating

Background: The imperfection of surgical sutures, from the point of view of insufficient prevention of microbial contamination in the area of suturing, is one of the urgent problems in modern practical healthcare. In this connection, one of the promising areas at the present time is the study of suture material under conditions of its coating with various antiseptics. This study aimed to evaluate the physical and mechanical properties of the suture material impregnated with miramistin for further application in experimental studies on animals. Methods and Results: By applying a two-layer polymer coating on absorbable polyglycolide threads, the threads were given antimicrobial properties. In the amount of 10% or 20% by weight of the polymer, miramistin was introduced into both coatings. The breaking load and elongation data in the surgical suture knot were evaluated by immersing the samples in a phosphate buffer solution (pH=7.4), maintaining a constant temperature of 37°C by a thermostat. Threads from the solution were extracted on Days 1, 3, 7, 14, and 21 of the experiment. Further, the studied samples of the suture material were subjected to stretching to rupture on a universal tensile testing machine of the domestic company Metrotest. Physical and mechanical properties were evaluated by the dynamics of the breaking load and elongation at a break in the node after being in a phosphate buffer solution. Coating of polyglycolide thread, which is a suture material, with miramistin at a concentration of 10% and 20% does not lead to loss of strength even in the long term of the experimental study, which, in turn, meets the standards for suture material. Conclusion: The results obtained allow us to recommend a suture material impregnated with miramistin for further research, the ultimate goal of which will be the possibility of active use of this material in practical medicine, in particular in surgery to prevent microbial contamination in the area of suturing and infection of wounds.

Toughening Effect of Oxirane‐Tetrahydrofuran Polyether (PEOT) on Blended and Cross‐Linked Nitrocellulose

AbstractA series of cross‐linked and physical blends of nitrocellulose (NC) with oxirane‐tetrahydrofuran copolyether (PEOT) in different proportions were prepared using toluene‐2,4‐diisocyanate (TDI) as a crosslinking agent. The critical mechanical properties were evaluated by a universal material tensile testing machine and the dynamic mechanical thermal analyses (DMA). The reaction mechanism of the crosslinking process as well as the interaction between NC and PEOT were studied through Fourier transform infrared spectroscopy (FT‐IR). It was shown that as the mass fraction of PEOT increases, the Tg of the polymer blends gradually decreases, which can reach as low as −22.3 °C. It was further indicated that the low‐temperature mechanical properties of NC were significantly improved after blending. In comparison to the physical blending polymers, the miscibility between NC and PEOT was improved after cross‐linking reaction with TDI. When the mass fraction of NC was 50 %, the tensile strength of NC/PEOT physical blend and NC/PEOT/TDI cross‐linked blend reaches 20.82 MPa and 24.93 MPa, respectively. The corresponding elongation at break of these two systems was 96.58 % and 102.7 %, which means the toughening effect of PEOT on NC could be enhanced by crosslinking.

Effect of Nb content and thermal deformation on the microstructure and mechanical properties of high-strength anti-seismic rebar

Rebar is the most important material in large-scale engineering structures, and its fine structure determines the strength and seismic resistance of rebar. The objective of this study is to investigate the effect of Nb content on the microstructure and mechanical properties of high-strength anti-seismic rebar under the condition of thermal deformation. The Gleeble-3800 thermal simulator was used to simulate the continuous rolling process, which analyzed that effect of precipitation behavior of Nb on the microstructure and mechanical properties of rebar. Scanning electron microscope (SEM), transmission electron microscope (TEM) and universal tensile testing machine were used to characterize the microstructure, precipitation and mechanical properties of high-strength anti-seismic rebar. Under the condition of process I or process II, when the Nb content changed from 0.012 wt% to 0.020 wt%, the microstructure of the experimental steel was mainly composed of ferrite and pearlite, resulting in relatively low the tensile strength and good the plasticity, and the tensile fracture belonged to ductile fracture. Under the condition of process I or process II, when the Nb content changed from 0.035 wt% to 0.060 wt%, the microstructure of the experimental steel was mainly composed of ferrite, pearlite and bainite, resulting in relatively high the tensile strength, which reached 995.30±5 MPa and low the plasticity, and the tensile fracture belonged to shear fracture. Whether under the condition of process I or process II, when the Nb content changed from 0.012 wt% to 0.060 wt%, TEM confirmed that the main precipitates of the experimental steels were mainly (Ti, Nb) C, (Ti, Nb, V) C, (Nb, Ti, V) C, respectively. These carbides were mainly distributed on the ferrite grains or grain boundaries, and the shapes were elliptical, square, strip, respectively. The average particle size of these carbides was less than 50 nm, and the crystal structure of these carbides belonged to the cubic structure.

Influence of nanofiller types on morphology and mechanical properties of natural rubber nanocomposites

Natural rubber (NR) nanocomposite containing different types of filler, i.e., nanoclay (clay) and cellulose nanofiber (CNF) were prepared in this study. The masterbatches of NR with 5 parts per hundred parts of rubber of nanofiller were firstly prepared by using the latex mixing method, followed by compounding on two roll mill and compression molding to obtain NR nanocomposite specimens. The unfilled NR sample was also prepared for comparison. Morphological properties of NR nanocomposites were investigated by using transmission electron microscopy, while the mechanical and dynamic properties were studied by using a universal tensile testing machine and dynamic mechanical analyzer (DMA). It was found that the clay with platelet morphology was uniformLy dispersed, while the long and flexible CNFs were aggregated and poorly dispersed. The greater improvement of modulus at various strains was achieved from CNF filled NR nanocomposites, while the highest tensile strength was obtained from the clay filled nanocomposite. As compared to the clay containing nanocomposite, the addition of CNF markedly decreased the tensile strength and elongation at break of the NR due to poor dispersion of CNF. However, a significant improvement in mechanical properties at low strain was obtained when the CNF was used as filler due to high degree of fiber entanglement, as suggested by DMA observation.

Microstructure and mechanical performance of zirconium, manufactured by selective laser melting

Additive manufacturing as an innovative material fabrication technique has been attracting increasing attention from academia and industry in recent years. However, intensive studies on additive manufacturing of zirconium and its alloy are very scarce due to the challenge of fabrication technology. Herein, commercially pure zirconium (CP–Zr) components with high mechanical properties in terms of strength and plasticity were successfully manufactured by selective laser melting (SLM) under an argon atmosphere. The microscopic characteristics and mechanical properties of as-processed CP-Zr were comprehensively investigated by the means of optical microscope (OM), transmission electron microscope (TEM) and universal tensile testing machine. The characterization experiments indicated that the as-built microstructure of CP-Zr was composed of a large amount of ultra-fine α' martensite locating inside the columnar prior β grains, and massive dislocations and twins distributing in martensite or matrix. Based on the tensile testing, the as-built samples achieved a great ultimate tensile strength of 746.3 MPa and a high elongation of 27.1%. Due to the formation of ultra-fine microstructure and the synergistic effect of dislocations and twins, the strength and plasticity of as-built objects are 96% and 69% higher than the wrought CP-Zr cubes required in ASTM-523, respectively. In this work, a near-net shape method was innovatively proposed for fabricating zirconium and its alloy components. As well, a perspective insight was provided for investigating the strengthening and deformation mechanism of SLM-manufactured CP-Zr.

Strong fibrous filaments nanocellulose crystals prepared by self-twisting microfluidic spinning

Orderly arranged nanocellulose and its composite materials have low density and excellent mechanical properties. A self-twisted microfluidic chip is designed in this work. Its sheath channel and core channel form a staggered layer structure. This structure can make the Cellulose nanocrystals (CNCs) in the core flow undergo twist during the gel forming process, so that it can be better combined and its mechanical properties can be improved. The degree of orientation and mechanical properties of fiber filaments were studied by wide-angle X-ray scattering and universal tensile testing machine. The orientation degree of the fiber is 0.77, the tensile strength is 400 ± 20 MPa, and the Young ' s modulus is 37.3 ± 3.8 GPa. The torsion angle of fiber surface is 5.5°. The mechanical properties of the filaments are 150% higher than those of a previously reported filament made of pure CNCs. This work demonstrates the possibility of preparing high-strength CNCs fiber filaments.

Additively manufactured tensile ring-shaped specimens for pipeline material fracture examination - influence of geometry

In order to define a procedure for integrity assessment of pipelines and determining the fracture mechanics parameters, a new type of specimen with a sharp notch, Pipe Ring Notched Tension (PRNT) specimen, is tested. The aim of the study is to determine the influence of the specimen geometry (cylindrical shape, as well as number and length of stress concentrators) on parameters such as force, Crack Mouth Opening Displacement CMOD, Crack Tip Opening Displacement CTOD and J integral. The specimens were fabricated by an additive production method - selective laser sintering (SLS). EOS Formiga P100 machine is used, and the material is polyamide PA12. In addition to Pipe Ring Notched Tension specimens, Single Edge Notched Tension (SENT) specimens with identical cross section were also considered. All specimens were tested on a universal tensile testing machine. A tool specially designed to apply contact pressure to the inner walls in the tension direction was used, simulating the internal pressure. For determining the field of displacement and strain on the surface of the tested samples that occur during the loading, Aramis GOM 2M optical measurement system was used. Aramis is applied for determination of geometry fracture mechanics parameters: CMOD and CTOD (based on δ5 concept). In addition to the examination of fracture properties of additively manufactured PA12, the main topic of this work is the development of the non-standard testing procedure, which will be subsequently applied to the specimens cut from metallic or non-metallic pipes. As an important part of this procedure, the calculation of fracture parameters will be conducted based on the results presented here.

Comparative evaluation of the effect of degree of convergence and surface area on the retentive force of titanium crowns cemented with various adhesive luting agents on extracted human teeth – A laboratory study

Introduction: The retention of base metal crowns and noble metal crowns cemented with various luting agents is well documented. However, little emphasis was given to the degree of convergence and surface area of tooth preparation. Aim and Objective: A study was planned to analyze the effect of the degree of convergence and surface area of the tooth preparation on the retention of titanium crowns with various adhesive luting agents. Materials and Methods: Forty-five caries-free extracted human premolars were obtained. They were divided into three groups according to the degree of convergence and further subdivided based on the type of luting agents used. The teeth were prepared with an angle of convergence of 5°, 10°, and 15° with a flat occlusal surface using K9 crown finishing installation, complete. Light body copper band impressions were made to determine the surface area. Titanium crowns thus obtained were sandblasted, ultrasonically cleaned, and cemented using Panavia F, Calibra, and Glass Ionomer Cement. Results: Results showed that Panavia F was the best luting agent exhibiting maximum retentive force to dislodge the crown in a vertical direction using the universal tensile testing machine at a cross-head speed of 1 mm/min. Conclusion: The force required to dislodge the titanium crown from the prepared tooth was maximum for Panavia F on 5°, 10°, and 15° angle of convergence at 65.23 kgf, 48.52 kgf, and 40.14 kgf. Retentive force values drastically reduced as the degree of convergence increased. There was a reduction in the surface area due to an increase in the taper.

Investigation of the tensile behaviour of PolyLactic Acid, Acrylonitrile Butadiene Styrene, and Polyethylene Terephthalate Glycol materials

Additive Manufacturing (AM) provides numerous advantages like material waste reduction, dimensional control, and simplified production processes compared to conventional manufacturing techniques. The additive manufacturing techniques are capable of producing complex-shaped components with ease. Out of the several available 3D printing techniques, Fused Deposition Modelling (FDM) is widely used, because of its flexibility in the fabrication of large components. PolyLactic Acid (PLA), Acrylonitrile Butadiene Styrene (ABS), and Polyethylene Terephthalate Glycol (PETG) are some of the commonly used thermoplastic filaments in the FDM process. It is essential to understand the tensile property of such polymers before selecting them for a requirement. In this regard, the tensile behaviour of the PLA, ABS, and PETG materials is studied in this work. The tensile specimens are modelled in Solidworks modelling software in accordance with the ASTM standards. The specimens are 3D printed using the FDM process and tested in a universal tensile testing machine. The tensile results show that PETG material has high elongation and tensile strength whereas ABS has high stiffness compared to the other materials. PLA is stronger than ABS in terms of tensile strength and is analogous to PETG material. It is evident from the comparison that the PETG filament is suitable for applications like hooks, brackets, etc. which require high tensile strength.

Effect of compression loading speeds on the room temperature mechanical properties of as-extruded AZ31 magnesium alloy

The room temperature compression experiments of as-extruded AZ31 magnesium alloy under different loading speeds were carried out on a universal tensile testing machine. The fracture failure characteristics and mechanism of the alloy under different compression loading speeds were analyzed by scanning electron microscope (SEM) and optical microscope (OM). The results show that during the compression test, the crushed AZ31 magnesium alloy sample has a certain pier coarseness, the macro fracture of the sample is located at one third of the sample, and the macro fracture mode is 45° shear fracture with the sample axis; With the increase of loading speed, the coincidence degree of macro fracture becomes worse, and its compressive strength changes in an undulating manner. When the loading speed is 2mm/min, the compressive strength reaches the peak value of 413MPa, and the fracture morphology of the sample shows a typical flat and flat rock like ductile brittle mixed fracture. With the increase of loading speed, the proportion of brittle fracture components increases, the shape of shrinkage fracture is rock like fracture, and the fracture fluctuation is relatively slow, the dimples distributed on the fracture surface are elongated and torn, and the compression speed has no obvious effect on the fracture morphology.

Effects of annealing temperature on the comprehensive properties of ultrathin niobium strips

Ultrathin niobium strips with thicknesses of 20, 30, and 40 µm were prepared by an accumulative roll process. The evolution of the microstructure, texture and mechanical properties of ultrathin Nb strips with different thicknesses at different annealing temperatures was studied by an electronic universal tensile testing machine and EBSD analysis. The results show that the whole process of grain recovery, recrystallization, complete recrystallization, and grain growth occurs with increasing annealing temperature. The complete recrystallization temperature increased as the thickness increased, and ultrathin niobium strips with thicknesses of 20 µm and 30 µm were recrystallized at 1050 °C, while the 40 µm thick sample was recrystallized at 1150 °C. Furthermore, to further characterize the size effect under extremely thin thicknesses, the 20 µm ultrathin niobium strip was analyzed in detail. It was found that the texture in the cold rolling state is mainly dominated by texture 〈111〉 ND. With increasing annealing temperature, the orientation density of the γ texture 〈111〉 ND orientation density gradually decreased, but the {111} 〈110〉 texture remained the main texture. It is noteworthy that the tensile strength of the ultrathin niobium strip decreases as the annealing temperature increases, but the elongation rate is still generally low, and the tensile strength of the ultrathin niobium strip indicates that the size effect is effectively ‘the smaller, the stronger’.

Experimental and Numerical Analysis of the Shear Properties of Honeycomb Cores Produced Using Additive Technologies

An approach to the experimental and computational study of the shear properties of honeycomb cores (HC) produced using Fused Deposition Modeling (FDM) technology is proposed. The experimental approach is based on a new sample type for testing HCs for shear. This sample contains two HCs and three steel plates. Shear tests are carried out in the TiraTest 2300 universal tensile testing machine. The HCs are made of ULTEM 9085 and PLA with FDM technology, which is implemented in the 3D Fortus 900 system. The tests resulted in obtaining the shear properties of the HCs by averaging the stress-strain curves of five samples. As follows from the analysis of the experimental results, brittle destruction of an HC is observed. Before its destruction, the value of shear deformation for samples made of PLA was 0.0134, and for samples made of ULTEM, 0.0257. The experimental analysis was accompanied by numerical finite element (FE) modeling of shear experiments, taking into account the deformation of the equipment. With the FE modeling of the experiments, to describe the behavior of the samples, it is necessary to take into account the influence, on the measurements of the shear properties, of the equipment and the deformation of each honeycomb cell. The deformation of three plates was taken into account; the elastic properties of the adhesive joint were not taken into account. A computer model of the deformation of the HCs with equipment was built using ANSYS Design Modeler. With FE modeling, only the elastic behavior of the HCs was considered.

Stress Corrosion Cracking Behavior of Fine-Grained Al5083 Alloys Processed by Equal-Channel Angular Pressing (ECAP).

In the present study, the stress corrosion cracking (SCC) behavior of ECAP Al5083 alloy was investigated in air as well as in 3.5 % NaCl solution using the slow strain rate tensile test (SSRT). The characteristics of grain boundary precipitates (GBPs), specifically the microchemistry of the SCC behavior of Al5083 alloys, both in “as-received” condition and when deformed by the ECAP process, were examined. The correlations between the SCC resistance and GBP microchemistry were examined. A microstructural evaluation was performed using an optical microscope. SCC tests were carried out using a universal tensile testing machine and the fracture surfaces were studied using scanning electron microscopy (SEM). A strain rate of 1×10−6 s−1 was applied for the SSRT. As the passes increased, the SCC susceptibility of the fine-grained ECAP Al5083 alloy also increased. Moreover, higher ultimate tensile strength and greater elongation were observed. This was due to grain refinement, high-density separations, and the expanded extent of high-density dislocations instigated by severe plastic deformation. Due to the high strength and elongation, the failure analysis showed a ductile mode of fracture. Electron backscattering diffraction (EBSD) analysis was performed to determine more clearly the nature of cracking. EBSD analysis showed that the crack propagation occurred in both transgranular and intergranular modes.

Portable universal tensile testing machine for studying mechanical properties of superelastic biomaterials

A portable universal tensile testing machine for single and cyclic loading of superelastic biomaterials is presented. It’s an alternative to large-sized stationary universal testing machines. The machine is designed to obtain uniaxial cyclic tension stress-strain curves of materials with a low elastic modulus, including biological tissues. Its portability allows using it in various conditions: classrooms, production laboratories, and in the field. An interface has been developed to connect it to a computer. Computer output of experimental data allows recording and displaying load-displacement curves, setting the number of cycles, limits, and rate of cyclic deformation. Several examples of testing various biomaterials are presented. The functional advantage of the device is the wide tensile testing speed range of 0.01–10 mm s−1 and cyclic loading, which allow capturing viscoelastic and superelastic behavior of biomaterials.

Highly stretchable polyurethane coating based on functionalized cerium oxide nanoparticles for anti‐corrosive/UV protection

AbstractTo prolong the active life of carbon steel in corrosive environment, it is an effective way to use inorganic nano‐pigments in polyurethane (PU) coatings. In this work, the CeO2 nanoparticles are modified by APTMS (labeled as mCeNPs), and the organic–inorganic nanocomposite coating is prepared. The morphology and structure of PU/mCeNPs composites are characterized by field emission scanning electron microscopy, transmission electron microscopy, and Fourier transform infrared spectroscopy. The mechanical and UV resistance properties of compound material are studied by ultraviolet spectroscopy and universal tensile testing machine. The corrosion resistance of PU/mCeNPs coatings are investigated by Tafel polarization technique and electrochemical impedance spectroscopy. The results show that the PU composite coating with mCeNPs additive had high long‐term corrosion resistance. Under the optimum conditions, when mCeNPs accounted for 5% of PU, the nanocomposite coatings show excellent UV resistance, excellent mechanical properties, and long‐term corrosion resistance due to the characteristics of ceria and its good dispersion in PU.

Secondary phases strengthening-toughening effects in the Mo–TiC–La2O3 alloys

Mo–TiC–La2O3 molybdenum alloys were strengthened and toughened by the synergistic action of nano-carbide particles and rare earth oxides. In this paper, the Mo–TiC–La2O3 alloy system was prepared by powder metallurgy. The microstructure was characterized by optical, scanning, and transmission electron microscopy. The mechanical properties were tested using the hardness tester and universal tensile testing machine. The grain size of the Mo–TiC–La2O3 alloy is smaller than the Mo–TiC and Mo–La2O3 alloys. The strength and elongation of annealed Mo–TiC–La2O3 alloy are 1291 MPa and 6.6%, respectively. The strength and ductility of the annealed Mo–TiC–La2O3 alloy are higher than the Mo–TiC and Mo–La2O3 alloys. According to the interfacial mismatch between the secondary phases and the matrix, along with oxygen impurities interactions, the mechanisms of strengthening and toughening of the secondary phases in the Mo–TiC–La2O3 alloy were revealed.

Effect of cooling rates after annealing on the microstructure and properties of 1000 MPa grade automobile steel for cold forming

The effects of different cooling rates (0.05 °C s−1, 0.1 °C s−1, and 0.2 °C s−1) on the microstructure and mechanical properties of 1000 MPa grade automobile steel for cold forming after two-phase annealing were studied. The microstructure of the experimental steel was observed by SEM and TEM, and its mechanical properties were tested by a universal tensile testing machine. The results showed that by increasing the cooling rate of two-phase annealing, more massive retained austenite, more uniform and fine ferrite, better elongation and higher ultimate tensile strength of steel can be obtained, so as to obtain better production of tensile strength and total elongation (product of tensile strength and elongation, PSE). The final result shows that after the test steel is quenched at 800 °C + 10 min and annealed in the two-phase region at 690 °C + 10 min, the faster the cooling rate, the better the mechanical properties. The mechanical properties of the steel plate are the best when the cooling rate reaches 0.2 °C s−1, and PSE can reach 27.44 GPa·%.

Effect of Doped Glass Fibers on Tensile and Shear Strengths and Microstructure of the Modified Shotcrete Material: An Experimental Study and a Simplified 2D Model

Shotcrete material has found extensive applications as a reinforcing material in the engineering sector. This study examined the effect of doped glass fibers on the mechanical performance of the modified shotcrete material composed of aeolian sand, fly ash, cement, quicklime, and doped glass fibers. Its tensile and shear strengths values were experimentally determined via a WAW-1000D computerized hydraulic universal tensile testing machine. Its microstructure was analyzed via a size analyzer, scanning electron microscope (SEM), and X-ray diffractometer (XRD). A 2D simplified mechanical model was elaborated to reflect the influence mechanism of the doped glass fibers on the mechanical performance of the modified shotcrete material. The experimental and mechanical analysis results indicated that, at the macroscopic scale, the experimental tensile and shear strengths of the shotcrete material doped with glass fibers were significantly higher than those of the undoped shotcrete material (by up to 310% and 596%, respectively). These results were in concert with the proposed model predictions, where the compound stresses in the shotcrete material were derived as the sum of the stress borne by the shotcrete material itself and the bridging stress exerted by the glass fibers. At the microscopic scale, SEM observations also revealed that the glass fibers were intertwined with each other and tightly enveloped by the shotcrete material particles within the modified shotcrete specimens, connecting the particles of different components into a whole and improving the overall mechanical strength. In addition, the relationships of the compound stress of the shotcrete material vs. embedment length, embedment angle, and cross-sectional area of the glass fibers were established. The research findings are considered instrumental in clarifying the mechanism by which the glass fibers influence the mechanical performance of shotcrete materials and optimize their solid waste (fly ash and quicklime) utilization.