Clamping Effect Research Articles

12548 Mammary De Novo Lipogenesis During A Hyperinsulinemic-euglycemic Clamp

Abstract Disclosure: T.M. Fordham: None. M. Ramos-Roman: None. E.J. Parks: Consulting Fee; Self; Simply Good Foods. Stock Owner; Self; Sagimet Biosciences. Other; Self; Past President of The Obesity Society. Introduction: The mammary produces large amounts of medium-chain saturated fatty acids. Long-chain saturated fatty acids found in human milk primarily derive from the maternal diet or from the mobilization of stored triglycerides. Previous studies have established the importance of insulin in stimulating mammary differentiation, milk synthesis, and lipogenesis. However, no studies have assessed how changes in insulin concentrations alter human mammary de novo lipogenesis (DNL) nor what effect gestational diabetes may have on insulin’s relationship to lipogenesis during lactation. Through the utilization of stable isotopes and the hyperinsulinemic-euglycemic clamp technique, we tested the differing concentrations of insulin to stimulate mammary DNL. Methods: Eight women (32±4 yrs) with (GDM, n=4) or without (NGT, n=4) recent gestational diabetes and overweight or obesity (28.2±2.9 kg/m2) were recruited to participate in this study at 6 weeks postpartum. The night before the study, participants orally consumed 3 doses of 70% deuterated water to label newly made fatty acids. Participants arrived in the morning for IV placement and immediately pumped milk contralaterally for 20 minutes. Milk was pumped two hours later, again at the end of step 1 of the clamp (10 mU/m2/min) and once more after step 2 (either 20 or 40 mU/m2/min). Milk triglycerides were extracted and prepared for analysis by gas chromatography-mass spectrometry. The incorporation of deuterium into milk triglyceride-fatty acids was the primary outcome. Results: Fasting insulin concentrations were significantly associated with newly-made 16:0 in milk triglycerides (r=0.85, P=0.01). Of all measured triglyceride 16:0, 1.6±1.0% were made de novo. This percentage increased 1.5-fold by the end of step 2 of the clamp (P=0.06). Fasting milk DNL 14:0 was 12.3±4.8% which was significantly greater than DNL 16:0 (P<0.01). DNL 14:0 increased 1.7-fold during step 2 (P=0.04). For both milk triglyceride 12:0 and 14:0 derived from DNL, a significant effect across clamp-stage was observed (P<0.001 for both), but not an effect of group (P=0.12, P=0.11, respectively). Bonferroni posthoc analyses revealed that the insulin effect was significant for both groups for 12:0 (GDM, P=0.02; NGT, P <0.01) and 14:0 (GDM, P<0.01; NGT, P=0.01). Interpretation: The present study is the first to assess the acute effect of a hyperinsulinemic-euglycemic clamp on the synthesis of newly-made triglyceride fatty acids in human milk. These results suggest that the increases in mammary DNL may be fatty acid specific, favoring that of lauric and myristic acids, but not longer chain fatty acids like palmitate. Mammary lipogenesis was stimulated by insulin in all subjects regardless of recent gestational diabetes diagnosis. The role mammary DNL plays in overall milk fat content deserves further investigation. Presentation: 6/3/2024

12548 Mammary De Novo Lipogenesis During A Hyperinsulinemic-euglycemic Clamp

Abstract Disclosure: T.M. Fordham: None. M. Ramos-Roman: None. E.J. Parks: Consulting Fee; Self; Simply Good Foods. Stock Owner; Self; Sagimet Biosciences. Other; Self; Past President of The Obesity Society. Introduction: The mammary produces large amounts of medium-chain saturated fatty acids. Long-chain saturated fatty acids found in human milk primarily derive from the maternal diet or from the mobilization of stored triglycerides. Previous studies have established the importance of insulin in stimulating mammary differentiation, milk synthesis, and lipogenesis. However, no studies have assessed how changes in insulin concentrations alter human mammary de novo lipogenesis (DNL) nor what effect gestational diabetes may have on insulin’s relationship to lipogenesis during lactation. Through the utilization of stable isotopes and the hyperinsulinemic-euglycemic clamp technique, we tested the differing concentrations of insulin to stimulate mammary DNL. Methods: Eight women (32±4 yrs) with (GDM, n=4) or without (NGT, n=4) recent gestational diabetes and overweight or obesity (28.2±2.9 kg/m2) were recruited to participate in this study at 6 weeks postpartum. The night before the study, participants orally consumed 3 doses of 70% deuterated water to label newly made fatty acids. Participants arrived in the morning for IV placement and immediately pumped milk contralaterally for 20 minutes. Milk was pumped two hours later, again at the end of step 1 of the clamp (10 mU/m2/min) and once more after step 2 (either 20 or 40 mU/m2/min). Milk triglycerides were extracted and prepared for analysis by gas chromatography-mass spectrometry. The incorporation of deuterium into milk triglyceride-fatty acids was the primary outcome. Results: Fasting insulin concentrations were significantly associated with newly-made 16:0 in milk triglycerides (r=0.85, P=0.01). Of all measured triglyceride 16:0, 1.6±1.0% were made de novo. This percentage increased 1.5-fold by the end of step 2 of the clamp (P=0.06). Fasting milk DNL 14:0 was 12.3±4.8% which was significantly greater than DNL 16:0 (P<0.01). DNL 14:0 increased 1.7-fold during step 2 (P=0.04). For both milk triglyceride 12:0 and 14:0 derived from DNL, a significant effect across clamp-stage was observed (P<0.001 for both), but not an effect of group (P=0.12, P=0.11, respectively). Bonferroni posthoc analyses revealed that the insulin effect was significant for both groups for 12:0 (GDM, P=0.02; NGT, P <0.01) and 14:0 (GDM, P<0.01; NGT, P=0.01). Interpretation: The present study is the first to assess the acute effect of a hyperinsulinemic-euglycemic clamp on the synthesis of newly-made triglyceride fatty acids in human milk. These results suggest that the increases in mammary DNL may be fatty acid specific, favoring that of lauric and myristic acids, but not longer chain fatty acids like palmitate. Mammary lipogenesis was stimulated by insulin in all subjects regardless of recent gestational diabetes diagnosis. The role mammary DNL plays in overall milk fat content deserves further investigation. Presentation: 6/3/2024

Study of step-like pulses from a mode-locked erbium-doped fiber laser in L-band

This paper presents a numerical simulation and an experiment on the generation of step-like pulse in an ultra-long cavity passively mode-locked erbium-doped fiber laser based on nonlinear optical loop mirror (NOLM). The gain competition phenomenon and the peak power clamping (PPC) effect of the step-like pulse are investigated with reasonable transmittance equation. To the best of our knowledge, this paper is the first interpretation and simulation of step-like pulse. And we believe that the findings contribute to the enrichment of nonlinear dynamics understanding and are anticipated to enhance laser performance optimization.

Sliding Shear Failure of Basement-Clamped Reinforced Concrete Shear Walls.

After an earthquake struck Chile in 1985, sliding shear failure was observed in the clamping zone of stabilising walls. Even houses with only four storeys can fail due to sliding shear below basement ceilings. This type of failure has received little attention in the past; however, it leads to premature failure of the clamping effect in the basement box. Bending deformations cannot fully develop, which significantly reduces the seismic safety; it is thus important to learn more about the sliding shear failure of basement-clamped shear walls. The overall behaviour is analysed based on three large-scale shear wall tests. The deformation states around the sliding shear zone are evaluated and a simple estimate is given of when sliding shear failure can occur.

Generation of h-shaped pulse rains in Er3+-doped fiber lasers utilizing TaTe2 as saturable absorber

This paper presents a study on generating h-shaped pulse rains phenomena in Er3+-doped fiber laser employing TaTe2 as saturable absorber. The spectrum of the h-shaped pulse rains has a central wavelength of 1561.63 nm and a repetition frequency of 3.353 MHz. The h-shaped pulse rains comprise a leading peak, a flat-top, and drifting pulses. The leading peak is attributed to incomplete saturation caused by significant gain losses and the incomplete effect of peak power clamping. The flattop is produced by the effect of peak power clamping, while the mechanism underlying the drifting pulses necessitates further exploration. During the investigation of the h-shaped pulse rains, it was discovered that adjusting the pump power allows control over the number of drifting pulses and the length of the flat-top. A distinctive drifting pulse is observed at pump power of 210 mW. Our experimental results show that TaTe2 saturable absorber have great potential for application in ultrafast photonics.

Dead-Time Free Modulation Scheme for IM Drive System Fed by Voltage Source Inverter

During the modulation process of the VSI motor drive system, the nonlinear errors caused by the dead-time and conduction voltage drop will increase the phase current harmonic distortion and the torque ripple. To solve this problem, a novel dead-time free modulation scheme is proposed in this paper. In the non-zero crossing region of the phase current, the switching tube, whose body diode can provide a continuation path, is set as off-state, the driving signal is only implemented on another switching tube with the same bridge arm, and the errors caused by the conduction voltage drop and switching delay are compensated to the pulse duration. At the same time, to suppress the zero current clamp effect that exists near the zero crossing point of the phase current, another modulation scheme for the phase current crossing zero in advance is proposed, which avoids the complicated determination and calculation of the current polarity near the zero crossing point of the current. Both of the above modulation schemes eliminate the dead-time, and the switching principle is presented. In addition, to suppress the impact of the current ripple and high-frequency noise on the accuracy of the phase current detection, a second-order resonance digital filter without phase shift is introduced. Finally, compared to two deadtime compensation methods, the effectiveness and superiority of the proposed dead-time free modulation scheme are verified by the experimental results.

Experimental study on the rupture behaviors of orthogonal faults: effects of stress state and rupture initiation location

Summary Fault rupture dynamics is expected to be significantly affected by the geometry of fault system, especially for orthogonal faults. However, the rupture behaviors of orthogonal faults especially the coseismic interactions are far from fully understood. Here, we present experimental results from a series of laboratory earthquakes to elucidate the effect of the stress state and initiation location on the rupture behaviors of orthogonal faults. Our results reveal a phase diagram of rupture behaviors of orthogonal faults, which is collectively controlled by stress state and rupture initiation location. For events initiating from the main fault, the rupture cannot jump to the branch, which may be due to the clamping effect or the inhibited shear stress accumulation on the branch. On the contrary, events initiating from the branch can persistently trigger ruptures of the main fault. This difference highlights the directional effect associated with the rupture of orthogonal faults. Further, the rupture length of triggered ruptures on the main fault is controlled by the stress state of the fault system. With the increase of the ratio between the shear stress and normal stress, the rupture length of the main fault increases. Our results reproduce the rupture behaviors of orthogonal faults, which may provide insights into the rupture characteristics of natural earthquakes.

Stereointerface Structure Drives Ferroelectricity in BaZrO3 Films.

Interfacial strain engineering can induce structural transformation and introduce new physical properties into materials, which is an effective method to prepare new multifunctional materials. However, interfacial strain has a limited spatial impact size. For example, in 2D thin films, the critical thickness of biaxial strain is typically less than 20 nm, which is not conducive to the maintenance of a strained structure and properties in thick film materials. The construction of a 3D interface can solve this problem. The large lattice mismatch between the BaZrO3 thin film and the substrate can induce the out-of-phase boundary (OPB) structure, which can extend along the thickness direction with the stacking of atoms. The lattice distortion at the OPB structure can provide a clamping effect for each layer of atoms, thus expanding the spatial influence range of biaxial strain. As a result, the uniform in-plane strain distribution and strain-induced ferroelectricity (Pr = 13 μC/cm2) are maintained along the thickness direction in BaZrO3 films.

Extending the Finite Area Method for enhanced simulation of deformable membranes and its application to extrusion blow moulding

This paper investigates the mechanics of the Extrusion Blow Moulding (EBM) process, focusing on the clamp and inflation phases. The simulation framework employed in this study has been developed using OpenFOAM ® and extends the available Finite Area Method with a vertex-centred approach. This cutting-edge developments integrated a corotational formulation with a quasi-static approximation. The computational code and algorithm are verified and validated through comparisons between analytical solutions, experimental measurements and simulation results, ensuring the accuracy and reliability of the proposed approach. The implemented code is verified by checking fundamental principles of hyperelastic materials behaviour, demonstrated through equibiaxial deformation of spherical balloons. The use of neo-Hookean and Mooney–Rivlin material models provides crucial insights into material responses under different inflation conditions. The studies begin employing a conceptual mould within the EBM process that allows examining the effects of mould clamping on parison deformation. Then the study extends to analysing a real bottle manufactured via EBM, employing Stereolithography (STL) digitization and thickness mapping to quantify the thickness distribution. The simulation results closely replicates experimental observations, capturing the inherent non-linearity of these process stages, including large deformations and displacements, hyperelasticity and parison-mould contacts. This interdisciplinary research enhances understanding of the EBM process phases and analogous processes, providing valuable insights for plastic manufacturing. It improves the design process for meeting specific requirements and offers guidelines to avoid potential failures. The findings underscore the importance of such studies in advancing sustainable and efficient plastic manufacturing practices, with applications ranging from inflatable structures to EBM processes.

On maintaining bistability of prestressed laminates after clamping

Bistable composite laminates exhibit a high degree of shape change and stiffness variation between their stable configurations, making them suitable for applications in morphing structures and energy harvesting. However, integration of these laminates into larger systems often imposes different boundary conditions, which can eliminate one of their stable states. Moreover, clamping one or more edges of a rectangular bistable laminate causes a drastic change in its strain energy landscape, indicating a strong interplay between the laminate geometry, boundary conditions, and prestress. In this work, we investigate the effect of clamping on the bistability of rectangular prestressed laminates. An analytical approach is proposed to examine the deflection decay imposed by the boundary condition along the laminate’s length. Different prestress values, laminate dimensions, and material properties are analyzed to establish their effect on the curvature change due to the localized clamp effect. A length criterion is determined to guarantee bistability after clamping the bistable laminate, suggesting the need to utilize complementary techniques to retain the bistable behavior for orthotropic prestressed laminates. Different strategies to counter the clamped edge effect and thereby retain the bistability of these types of laminates are then examined. The proposed analytical model is expanded to consider multi-section composite laminates, showing the role of the symmetric regions in bistability retention. Finally, the results from the model are validated against experiments.

Generation of a switchable and tunable rectangular pulse and multi-pulse with different peak powers at the L-band

A novel, to our knowledge, L-band erbium-doped fiber laser, utilizing a nonlinear optical loop mirror (NOLM) as a mode-locker, is presented in this study. Through precise adjustments of the polarization controllers (PCs), the laser achieves the generation of rectangular pulses with distinct single wavelengths, λ1=1593nm and λ2=1571nm, as well as dual-wavelength operation. The laser’s operational mode can extend further to include harmonic mode-locking (HML). Furthermore, the investigation reveals the emergence of trapezoidal pulses and low-peak-power rectangular pulses within proximity of the conventional rectangular pulses. Notably, the evolutions of these low-peak-power pulses with the pump power also adhere to the peak power clamping (PPC) effect. Remarkably, the relative positioning of these pulses remains consistent across varying pump power levels or harmonic orders. Intriguingly, the evolution of the trapezoidal pulse with respect to pump power stands in stark contrast to that of the h-shaped pulse.

Global Impact of Delayed Cord Clamping on Newborn Health

Anemia and neonatal jaundice are major contributors to infant mortality. This study investigates the effects of delayed umbilical cord clamping on neonatal hemoglobin levels and jaundice. Using a quasi-experimental posttest-only control design, 101 newborns were sampled and divided into immediate clamping (<3 minutes) and delayed clamping (>3 minutes) groups. Hemoglobin levels were measured within 24 hours, and jaundice was assessed on days 4-7. Results showed that delayed clamping significantly increased hemoglobin levels (P = 0.000) and reduced jaundice incidence (P = 0.010). The findings suggest that delayed clamping improves early infant health outcomes and should be adopted in health facilities. Highlight: Delayed clamping improves hemoglobin, reduces jaundice in newborns. Quasi-experimental design compares immediate vs. delayed cord clamping effects. Adopting delayed clamping enhances early infant health outcomes. Keyword: Anemia, neonatal jaundice, delayed cord clamping, hemoglobin levels, infant health

Magnetic Phase Transition-Induced Modulation of Ferroelectric Properties in Hexagonal RFeO3 (R = Tb and Ho).

Hexagonal rare-earth iron oxides (h-RFeO3) exhibit spontaneous magnetization and room-temperature ferroelectricity simultaneously. However, achieving a large magnetoelectric coupling necessitates further exploration. Herein, we report the impact of the magnetic phase transition on the ferroelectric properties of epitaxial h-RFeO3 (R = Tb and Ho) films prepared by pulsed laser deposition. The metastable h-RFeO3 phase is successfully stabilized with high crystallinity and low leakage current due to the ITO buffer layer, making it possible to investigate the ferroelectric properties. The h-TbFeO3 film exhibits a magnetic-field-induced transition from antiferromagnetic (AFM) to weak ferromagnetic (wFM) phases below 30 K, while also exhibiting ferroelectricity at 300 K. The dielectric constants change with the magnetic phase transition, demonstrating hysteresis in the magnetocapacitance. In contrast, the h-HoFeO3 film exhibits antiferroelectric-like behavior and an AFM-wFM phase transition. Notably, the h-HoFeO3 film shows a rapid increase in the remnant polarization during the AFM-wFM phase transition accompanied by an increase in the ferroelectric component. Considering the strong connection between the antiferroelectric behavior in the h-RFeO3 system and the ferroelectric domain wall motion, this considerable modification of ferroelectric properties during the magnetic phase transition is probably due to the faster movement of the ferroelectric domain walls in the wFM phase induced by the clamping effect. Our findings indicate the effectiveness of magnetic phase transitions in enhancing the magnetoelectric coupling, particularly when utilizing domain wall clamping properties.

Multicentre, randomised controlled trial of physiological-based cord clamping versus immediate cord clamping in infants with a congenital diaphragmatic hernia (PinC): statistical analysis plan

BackgroundInfants born with congenital diaphragmatic hernia (CDH) are at high risk of respiratory insufficiency and pulmonary hypertension. Routine practice includes immediate clamping of the umbilical cord and endotracheal intubation. Experimental animal studies suggest that clamping the umbilical cord guided by physiological changes and after the lungs have been aerated, named physiological-based cord clamping (PBCC), could enhance the fetal-to-neonatal transition in CDH. We describe the statistical analysis plan for the clinical trial evaluating the effects of PBCC versus immediate cord clamping on pulmonary hypertension in infants with CDH (PinC trial).DesignThe PinC trial is a multicentre, randomised controlled trial in infants with isolated left-sided CDH, born ≥ 35.0 weeks of gestation. The primary outcome is the incidence of pulmonary hypertension in the first 24 h after birth. Maternal outcomes include estimated maternal blood loss. Neonatal secondary outcomes include mortality before discharge, extracorporeal membrane oxygenation therapy, and number of days of mechanical ventilation. Infants are 1:1 randomised to either PBCC or immediate cord clamping using variable random permutated block sizes (4–8), stratified by treatment centre and estimated severity of pulmonary hypoplasia (i.e. mild/moderate/severe). At least 140 infants are needed to detect a relative reduction in pulmonary hypertension by one third, with 80% power and 0.05 significance level. A chi-square test will be used to evaluate the hypothesis that PBCC decreases the occurrence of pulmonary hypertension. This plan is written and submitted without knowledge of the collected data. The trial has been ethically approved.Trial registrationClinicalTrials.gov NCT04373902 (registered April 2020).

Modeling for Hysteresis Contact Behavior of Bolted Joint Interfaces with Memory Effect Penalty Constitution

A novel penalty contact constitution was developed to replicate the hysteresis memory effect observed in contact interfaces. On this basis, a refined finite element analysis (FEA) was performed to study the stick–slip friction contact behavior of bolted joint interfaces. The analysis was validated by comparing it with the experimental hysteresis loops in the literature. The simulated hysteresis loops were subsequently used to identify four parameters of the Iwan model. Additionally, the effects of bolt clamping, friction coefficient, and excitation amplitude were individually examined. It was found that the deterioration in bolt clamping performance resulted in a decrease in both the equivalent joint stiffness and energy dissipation. Similarly, the reduction in the friction coefficient yielded a comparable impact. Furthermore, the identified model parameters of critical stick–slip force and displacement exhibited a quasi-linear relationship to the bolt preload and friction coefficient.

Large room temperature magnetoelectric response in quasi 1–2 nanocomposite films on mica substrate

AbstractA novel quasi 1–2 type magnetoelectric (ME) nanocomposite films composted of one‐dimensional CoFe2O4 nanofibers and two‐dimensional PbZr0.2Ti0.8O3 films on flexible mica substrate have been designed and fabricated. The ME coupling effects have been greatly enhanced due to the release of the clamping effect and the high strain transfer efficiency between the large aspect ratio of the nanofibers and ferroelectric thin films. The release of the clamping effect was confirmed by reducing the thickness of the mica substrate, in which the piezoelectric coefficient and ME coupling coefficient of the nanocomposite films have been greatly boosted by the decrease in the mica thickness. A large direct ME coupling coefficient of 630 mV/(cm Oe) and a converse ME coupling coefficient of 1.43 × 10−8 s/m have been achieved in the quasi 1–2 nanocomposite film with a substrate thickness of 25 µm. Furthermore, the stain‐mediated ME coupling was revealed by magnetic field/electric field‐induced local ferroelectric/magnetic domain switching dynamics.

Effect of Uterine Artery Clamping in Reducing Cesarean Hysterectomy in Pregnancies Complicated by Placenta Accrete Spectrum

Background and objective: The placenta accreta spectrum is a major public health problem. Many interventional measures are used for controlling hemorrhage and preventing emergency caesarean hysterectomy. The aim of this study was to evaluate the role of uterine artery clamping in reducing maternal morbidity and mortality in pregnancies complicated by placenta accrete spectrum. Methods: This is a retrospective case-control study implemented in the Sulaymaniyah Maternity Teaching Hospital in Sulaymaniyah city, Kurdistan region-Iraq through the period of 2 years from 1st of June 2020, to 31st of May, 2022. A sample of sixty pregnant women with placenta accreta spectrum surgically managed by elective cesarean section and divided into two study groups (32 women underwent elective cesarean section with uterine artery clamping [interventional group] and 28 women underwent elective cesarean section without uterine artery clamping [control group]). Results: The postoperative hemoglobin level was significantly higher in women of the interventional group with a mean of (10.1±0.7 gm/dL) compared to (9.3±1 gm/dL) in women of the control group. The mean of units of blood transfused was significantly lower in women of the interventional group with a mean of (1.3±0.6 units) compared to (3.1±1.4 units) in women of the control group. Also, there was a significant reduction in units of fresh frozen plasma in women of the interventional group with a mean of (0.9±0.6 units) compared to (2.9±1.5 units) in women of the control group. Conclusions: The uterine artery clamping before placental separation is helpful in reducing the rate of maternal morbidity and mortality in pregnancies complicated by placenta accreta spectrum.

Optimizing the Performance of a Pd Film-Based Room-Temperature H2 Sensor by Eliminating the Clamping Effect with Cr Nanoparticles

Optimizing the Performance of a Pd Film-Based Room-Temperature H₂ Sensor by Eliminating the Clamping Effect with Cr Nanoparticles

Impact of the Timing of Umbilical Cord Clamping on Maternal and Neonatal Outcomes in Saudi Arabia.

The optimal time for umbilical cord clamping after delivery has been under debate for several decades. This study aimed to assess the time-dependent effects of umbilical cord clamping on maternal and neonatal outcomes. An observational correlational design was used to recruit 161 pregnant women conveniently. Outcomes were observed and recorded using a structured checklist developed by the authors.Pregnant females aged ≥18 years, with uncomplicated delivery, and who were willing to participate were recruited. Exclusion criteria included stillbirths, newborns with congenital anomalies, newborns too small for their gestational age, intra-uterine growth restriction, nuchal cord, and meconium-stained liquor. The mean age of the participants was 29.93 ± 6 years. Early clamping (<1 minute) was performed for 93.8% of the participants with a mean of 29.58 ± 18 seconds. Delayed clamping was associated with a decrease in blood loss and the length of hospital stay in addition to an increase in first-minute APGAR score and neonatal temperature (P < 0.05). Delayed cord clamping was associated with improved maternal and neonatal outcomes.

Enhanced electromechanical coupling in Pb(ZrTi)O3 piezoelectric composite via poly(vinylidene fluoride‐trifluoroethylene) clamping

AbstractThis study presents an advanced two‐step hot‐pressing process for fabricating the 1‐3 type Pb(ZrTi)O3/poly(vinylidene fluoride‐trifluoroethylene) (PZT/P(VDF‐TrFE)) piezoelectric composite sheets, demonstrating significant potential for nondestructive evaluation and information storage applications. The engineered columnar architecture within these composites induces a two‐phase clamping effect, which, upon polarization, facilitates the elongation of PZT and suppresses its lateral vibrations, thus enhancing the electromechanical coupling effect as verified by COMSOL simulations. A notable dielectric constant of 2200 at 100 Hz and a coupling coefficient of 0.725 was achieved with specific geometric modifications to the PZT/P(VDF‐TrFE) sheets. These findings suggest that P(VDF‐TrFE) as a polymer matrix exceeds the performance of conventional epoxy matrices, offering a novel approach to designing 1‐3 type piezoelectric composites.Highlights P(VDF‐TrFE) effectively drives the elongation strain of internal PZT columns. COMSOL simulation clarifies the clamping effect of piezoelectric P(VDF‐TrFE). PZT/P(VDF‐TrFE) shows a higher kt of 0.725 than that of pure PZT samples.