Composite Structures最新文献

Understanding mode II traction-separation relationship of bonded composites-to-metal using back face strain derived method 利用后面应变推导方法研究键合复合材料与金属的II型牵引分离关系

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-23 DOI: 10.1016/j.compstruct.2026.121008

Shijie Zhang, Yusheng Liu, Yilin Jin, Xudan Yao, Wandong Wang

引用次数: 0

Low-velocity impact damage mechanisms and residual tensile and in-plane shear properties of CCF800H/AC531 composite T-joints CCF800H/AC531复合t形接头低速冲击损伤机理及残余拉伸、面内剪切性能

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-27 DOI: 10.1016/j.compstruct.2026.121057

Xiaonan Yu, Xingjin Gu, Xiwu Xu, Yandong Liu, Chao Zhang

{"title":"Low-velocity impact damage mechanisms and residual tensile and in-plane shear properties of CCF800H/AC531 composite T-joints","authors":"Xiaonan Yu, Xingjin Gu, Xiwu Xu, Yandong Liu, Chao Zhang","doi":"10.1016/j.compstruct.2026.121057","DOIUrl":"10.1016/j.compstruct.2026.121057","url":null,"abstract":"<div><div>Composite T-joints are susceptible to low-velocity impact during service, and their residual mechanical properties are critical to structural safety. In this study, the damage mechanisms and post-impact tensile and in-plane shear behavior of CFRP T-joints under 8–35 J impacts are investigated through experiments and numerical simulations. Visible and barely visible impact damage are identified by indentation depth, while μCT is used to reconstruct the internal cracks and damage morphology. DIC captures full-field strain and crack evolution during post-impact tensile loading, and SEM reveals the fracture mechanisms after tensile and shear failure. A progressive damage FE model is developed to reproduce the impact response and residual strength degradation. The results show that interfacial debonding among the fillet, L-stiffener and stiffening flange is the dominant damage mode, with distinct geometry-driven and energy-threshold characteristics. Comparative analysis confirms that residual tensile strength is more sensitive to impact energy than in-plane shear strength: tensile failure is dominated by stable crack propagation, while shear failure occurs abruptly via coupled interfacial debonding, matrix cracking and fiber shear fracture. The L-stiffener flange/fillet interface is identified as the most critical damage initiation region under mixed-mode stress. This work provides essential support for damage tolerance design and safety evaluation of composite T-joint structures.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"400 ","pages":"Article 121057"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149350597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An RZT-PINN framework with energy-driven adaptive sampling for deformation analysis of laminated composite plates 基于能量驱动自适应采样的RZT-PINN框架复合材料层合板变形分析

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-25 DOI: 10.1016/j.compstruct.2026.121043

Dewen Yu, Tengfei Wu, Qiangqiang Zhao, Yangfei Gao, Baiyi Li, Haoxiang Xi, Jun Hong

{"title":"An RZT-PINN framework with energy-driven adaptive sampling for deformation analysis of laminated composite plates","authors":"Dewen Yu, Tengfei Wu, Qiangqiang Zhao, Yangfei Gao, Baiyi Li, Haoxiang Xi, Jun Hong","doi":"10.1016/j.compstruct.2026.121043","DOIUrl":"10.1016/j.compstruct.2026.121043","url":null,"abstract":"<div><div>Laminated composite plates are extensively employed in advanced engineering structures, but their deformation analysis remains computationally demanding when using traditional numerical methods. To address this challenge, this study seamlessly integrates the refined zigzag theory (RZT) into a physics-informed neural network (PINN), herein termed RZT-PINN, for efficient prediction of the deformation behavior of laminated composite plates. By minimizing the system’s total potential energy instead of solving the strong-form governing equations, the RZT-PINN framework eliminates the need for high-order automatic differentiation, thereby improving numerical robustness and computational efficiency. To accurately account for the through-thickness material heterogeneity of laminated composites, an efficient hybrid integration scheme is developed for precise evaluation of the potential energy functional without relying on element-based meshing. In particular, an energy-driven adaptive sampling strategy is introduced into the developed RZT-PINN framework to dynamically enrich collocation points in regions characterized by elevated strain-energy density. This strategy enables accurate resolution of localized stress gradients while significantly accelerating convergence of the energy-based loss function. Numerical validations confirm that the RZT-PINN framework not only matches the accuracy of the standard finite element method but also reduces the computational time against commercial solvers. Moreover, it exhibits superior capability over alternative methods in capturing complex deformation patterns under diverse structural configurations and boundary conditions. Overall, the proposed framework establishes an efficient, robust, and mesh-free deep-learning paradigm for composite laminate analysis, offering a promising computational tool for modern engineering design and optimization.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"400 ","pages":"Article 121043"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149350600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical investigation of fiber winding pattern effects on the radial stiffness of GFRP composite cylinders under internal pressure 内压下纤维缠绕方式对GFRP复合材料圆柱体径向刚度影响的实验与数值研究

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-26 DOI: 10.1016/j.compstruct.2026.121042

Alireza Zarezadeh, Mahmoud Afshari, Ekaterina Diakina, Somayeh Mohammadi, Ehsan Talei Fard, Aseel Smerat

{"title":"Experimental and numerical investigation of fiber winding pattern effects on the radial stiffness of GFRP composite cylinders under internal pressure","authors":"Alireza Zarezadeh, Mahmoud Afshari, Ekaterina Diakina, Somayeh Mohammadi, Ehsan Talei Fard, Aseel Smerat","doi":"10.1016/j.compstruct.2026.121042","DOIUrl":"10.1016/j.compstruct.2026.121042","url":null,"abstract":"<div><div>This study presents an experimental and numerical investigation into the effect of fiber winding pattern on the radial stiffness of glass/epoxy composite cylinders manufactured by filament winding within the linear elastic regime. Four distinct winding patterns with ± 54° helical lay-up were fabricated and tested under hydrostatic pressures ranging from 5 to 50 bar. Radial displacements at the cylinder mid-span were measured experimentally and compared with finite element predictions. The key innovation lies in modeling winding effects through laminate symmetry: Pattern 1 produces an asymmetric laminate with a non-zero B-matrix, while Pattern 5 produces a symmetric laminate with a zero B-matrix. Results show excellent agreement between experimental and numerical methods, with errors ranging from −5.8% to + 2.4% at 50 bar. Increasing pattern number significantly reduced radial displacement from 5555 μm to 4265 μm at 50 bar, representing a 23.2% improvement. Circumferential stiffness uniformity improved by 33.3%. Pattern 5, characterized by a zero B-matrix and finest texture, is identified as the optimal configuration, providing maximum radial stiffness and most uniform deformation. The validated framework offers a reliable engineering tool for optimizing winding patterns to maximize radial stiffness and improve circumferential stiffness uniformity in composite pressure vessels within the linear elastic range.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"400 ","pages":"Article 121042"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149350961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid microstructured sensing layer-enabled flexible piezoresistive pressure sensor for human–machine interaction 用于人机交互的混合微结构传感层柔性压阻压力传感器

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-26 DOI: 10.1016/j.compstruct.2026.121047

Mingchao Du, Jiarui Zhang, Liangsong Huang, Peng Zhang, Yuxia Li, Changzhi Zhao, Jingru Feng, YuJia Shi, Liwei Sui

{"title":"Hybrid microstructured sensing layer-enabled flexible piezoresistive pressure sensor for human–machine interaction","authors":"Mingchao Du, Jiarui Zhang, Liangsong Huang, Peng Zhang, Yuxia Li, Changzhi Zhao, Jingru Feng, YuJia Shi, Liwei Sui","doi":"10.1016/j.compstruct.2026.121047","DOIUrl":"10.1016/j.compstruct.2026.121047","url":null,"abstract":"<div><div>Flexible piezoresistive pressure sensors have attracted increasing attention in wearable healthcare, human–machine interaction, and electronic skins. However, the synergistic regulation between interfacial contact evolution and conductive-network reconstruction has received relatively little attention. Herein, a flexible piezoresistive pressure sensor integrating a pyramid-dome hybrid microstructure with an MWCNTs/CB dual conductive network is developed. The pyramid structures induce localized stress concentration under low pressure, accelerating interfacial contact formation, while the dome structures provide progressive deformation to extend the sensing range. Meanwhile, the interconnected MWCNTs framework and dispersed CB particles enable continuous conductive-network reconstruction during compression. Owing to the synergistic effects of the hybrid microstructure and dual conductive network, the sensor achieves a high sensitivity of −0.375 kPa<sup>−1</sup> in the low-pressure region (0–2 kPa) and a wide linear sensing range of 0–84.4 kPa. The sensor also demonstrates reliable pressure detection down to 436 Pa, a response time of approximately 200 ms, and excellent stability over 2500 loading–unloading cycles. Furthermore, the sensor was integrated into an intelligent pressure-regulated massage system and a flexible musical mat, demonstrating its potential for human–machine interaction, assisted rehabilitation, and intelligent tactile sensing.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"400 ","pages":"Article 121047"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149350962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal buckling induced transition in the nonlinear dynamics of a bio-inspired metamaterial beam 仿生超材料梁非线性动力学中的热屈曲诱导跃迁

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-21 DOI: 10.1016/j.compstruct.2026.121021

Antonio Zippo, Moslem Molaie, Eleonora Torricelli, Francesco Pellicano

{"title":"Thermal buckling induced transition in the nonlinear dynamics of a bio-inspired metamaterial beam","authors":"Antonio Zippo, Moslem Molaie, Eleonora Torricelli, Francesco Pellicano","doi":"10.1016/j.compstruct.2026.121021","DOIUrl":"10.1016/j.compstruct.2026.121021","url":null,"abstract":"<div><div>This study presents an experimental investigation of the temperature-dependent nonlinear dynamics of a beam in the pre-post-buckling regimes, complemented by thermo-mechanical finite element analysis of equilibrium configurations and associated modal characteristics. This study experimentally characterizes how thermal buckling reshapes the nonlinear forced response of a bio-inspired beam, including changes in resonance characteristics and transitions between oscillatory regimes. A clamped–clamped polylactic acid (PLA) beam inspired by woodpecker skull architecture was tested from 5 °C to 45 °C. Random vibration tests revealed non-monotonic changes in the first and third natural frequencies. The first decreased from 59 to 48 Hz near buckling at 15 °C, then increased to 72 Hz at 45 °C. The numerical workflow comprises thermal-stress analysis, eigenvalue buckling analysis, geometrically nonlinear static analysis incorporating an initial geometric imperfection, and prestressed modal analysis to evaluate the temperature-dependent natural frequencies. The predicted natural frequencies showed good agreement with the experimental measurements, with a maximum relative error below 7.4 %. Sine-sweep tests revealed a transition from hardening to mixed softening-hardening and predominantly softening responses after buckling. Nonlinear time-series analysis identified quasiperiodic oscillations, period-doubling, and chaotic beating responses. The methodology combines experimental nonlinear dynamic characterization with thermo-mechanical finite element analysis assessed against experimental modal measurements.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"400 ","pages":"Article 121021"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149350963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Micromechanical modeling of the tensile behavior of UHPC with macro fibers recycled from decommissioned wind turbine blades 退役风力涡轮机叶片再生宏纤维UHPC拉伸性能的微观力学建模

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-21 DOI: 10.1016/j.compstruct.2026.121019

Bing Fu, Hua-Xiang Liu, Xue-Min You, Yuan-Bin Xu, Qi-Qi Zou

{"title":"Micromechanical modeling of the tensile behavior of UHPC with macro fibers recycled from decommissioned wind turbine blades","authors":"Bing Fu, Hua-Xiang Liu, Xue-Min You, Yuan-Bin Xu, Qi-Qi Zou","doi":"10.1016/j.compstruct.2026.121019","DOIUrl":"10.1016/j.compstruct.2026.121019","url":null,"abstract":"<div><div>Macro fibers recycled from waste wind turbine blades (WTBs) can serve as sustainable discrete reinforcement for ultra-high performance concrete (UHPC). However, they exhibit semi-rigid nature and flat geometry dictated by the WTB laminated structure, leading to a pronounced anisotropic snubbing effect alongside complex pullout failure modes. These distinctive characteristics render conventional micromechanical models, which are primarily developed for high-stiffness circular steel fibers, inadequate for accurately characterizing the tensile response of macro fiber reinforced UHPC (MFUHPC). To bridge this gap, a comprehensive micromechanical predictive framework for the MFUHPC tensile response is established in this study. Unlike existing isotropic models, the single-fiber anisotropic pullout behavior is upscaled to the macroscopic crack-bridging response, with inputs calibrated from double-sided pullout tests. Fiber geometry, stiffness, and interfacial bonding characteristics were integrated into the model, and an orientation factor was incorporated to comprehensively reflect the combined influence of fiber distribution and bridging efficiency. The proposed model accurately predicts the complete tensile response of MFUHPC, demonstrating excellent agreement with experimental results. Furthermore, the accuracy of the constitutive model was validated through finite element (FE) simulations. Collectively, a reliable theoretical basis and a micromechanics based predictive framework are provided for tensile evaluation and structural design of MFUHPC.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"400 ","pages":"Article 121019"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149351187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of mesoscopic and microscopic damage evolution in 3D woven composites based on SCA-DPNN concurrent multiscale damage model 基于SCA-DPNN并行多尺度损伤模型的三维机织复合材料细观损伤演化研究

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-30 DOI: 10.1016/j.compstruct.2026.121069

Siyang Wu, Kai Huang, Licheng Guo, Shuai Zhu, Hongjun Yu, Zhixing Li

{"title":"Investigation of mesoscopic and microscopic damage evolution in 3D woven composites based on SCA-DPNN concurrent multiscale damage model","authors":"Siyang Wu, Kai Huang, Licheng Guo, Shuai Zhu, Hongjun Yu, Zhixing Li","doi":"10.1016/j.compstruct.2026.121069","DOIUrl":"10.1016/j.compstruct.2026.121069","url":null,"abstract":"<div><div>Establishing an artificial intelligence (AI) model for composite damage prediction that incorporates loading path dependence is challenging. Therefore, a Damage Path-dependent Neural Network model (DPNN) is proposed to predict the microscopic damage behavior and homogenized performance of fiber yarns. It consists of a loading path module and a stress module. Loading path information is incorporated by employing cluster-based microscopic damage fields and strain increments in the DPNN model training process. A sampling method that integrates both random and monotonic loading paths is established to obtain the path-dependent data for training the DPNN model. A total of 350,000 samples are obtained for each type of fiber yarn. A novel SCA-DPNN multiscale model is proposed, in which the Self-consistent Clustering Analysis (SCA) method is employed to solve the 3DWC RVE boundary value problems (BVPs), and the DPNN model is used to achieve fast solutions of the fiber yarn RVE BVPs. The study demonstrates that the DPNN model is capable of accurately solving the homogenized mechanical behavior of the fiber yarn RVE under loading–unloading conditions. Meanwhile, the SCA-DPNN model can accurately predict the strength, multiscale damage and the dominant failure modes of 3D woven composites (3DWC) under tensile conditions, which are consistent with experiments.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"400 ","pages":"Article 121069"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149350577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An analytical projectile–target motion coupling model for rate-dependent penetration of UHMWPE laminates 超高分子量聚乙烯层合板速度相关侵彻弹靶运动耦合分析模型

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-26 DOI: 10.1016/j.compstruct.2026.121034

Peng Liu, Mingzheng Yuan, Ranxu Zhao, Hongyuan Zhou, Hong Zhang, Yemao He

{"title":"An analytical projectile–target motion coupling model for rate-dependent penetration of UHMWPE laminates","authors":"Peng Liu, Mingzheng Yuan, Ranxu Zhao, Hongyuan Zhou, Hong Zhang, Yemao He","doi":"10.1016/j.compstruct.2026.121034","DOIUrl":"10.1016/j.compstruct.2026.121034","url":null,"abstract":"<div><div>Ultra-high molecular weight polyethylene (UHMWPE) laminates are widely used in lightweight armor systems; however, existing analytical models inadequately capture strain-rate sensitivity and stress concentrations induced by projectile nose geometry. In this study, a dynamic projectile–target coupling model is developed to predict velocity–time history, strain rate and stress evolution, as well as residual velocity or ballistic limit of thick UHMWPE laminates, explicitly incorporating strain hardening and projectile shape effects. Based on ballistic experiments, CT scans, and numerical simulations under varying impact velocities and nose geometries, the penetration process is classified into three stages: compaction, fiber acceleration, and joint movement (non-penetration regime). The model combines cavity expansion theory to characterize resistance and momentum conservation to describe target motion, while damage is evaluated through projectile–target velocity differentials. Predictions agree well with experiments and literature, with a maximum deviation of 6% in residual velocity and ballistic limit (V50). Increasing impact velocity results in an order-of-magnitude rise in peak strain rate and significant stress enhancement. Moreover, V50 shows a linear dependence on the target-to-projectile areal density ratio. Among different nose shapes, ogival projectiles exhibit the lowest resistance and ballistic limit. The model provides quantitative guidance for lightweight armor design against diverse threats.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"400 ","pages":"Article 121034"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149350594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Large-deflection nonlinear vibration and hygrothermal post-buckling dynamics of carbon fiber-reinforced shape memory polymer composite laminates 碳纤维增强形状记忆聚合物复合材料层合板的大挠度非线性振动及湿热后屈曲动力学

IF 7.8 2区材料科学

Composite Structures Pub Date : 2026-11-01 Epub Date: 2026-10-26 DOI: 10.1016/j.compstruct.2026.121039

Jianping Gu, Hao Duan, Wencheng Pan, Chentong Gao, Hao Zeng, Zhengrong Mao, Huiyu Sun

{"title":"Large-deflection nonlinear vibration and hygrothermal post-buckling dynamics of carbon fiber-reinforced shape memory polymer composite laminates","authors":"Jianping Gu, Hao Duan, Wencheng Pan, Chentong Gao, Hao Zeng, Zhengrong Mao, Huiyu Sun","doi":"10.1016/j.compstruct.2026.121039","DOIUrl":"10.1016/j.compstruct.2026.121039","url":null,"abstract":"<div><div>While carbon fiber-reinforced shape memory polymer composites (CF-SMPCs) show significant potential for aerospace morphing structures, their large-deflection dynamics under hygrothermal environments remain elusive. This study develops a nonlinear transient dynamic model for CF-SMPC laminates using the first-order shear deformation theory, von Kármán kinematics, a frequency-consistent Kelvin-Voigt viscoelastic law, and a multi-term Navier series expansion. Results reveal that fully constrained boundaries induce substantial hygrothermal compressive pre-stresses, triggering buckling. However, the nonlinear membrane stretching stiffening effect arrests this divergence, stabilizing asymmetric post-buckling oscillations. Conversely, free-sliding boundaries prevent macroscopic buckling. Benefiting from the frequency-consistent damping, these unconstrained laminates continuously maintain an underdamped oscillatory state, revealing authentic energy dissipation peaks during phase transitions. Furthermore, implementing partial elastic restraints demonstrates that while stiffer boundaries trigger buckling, they paradoxically minimize ultimate post-buckling deflections by maximizing membrane stiffening. It should be noted that active shape-memory recovery involves time-dependent kinematic boundaries; thus, this study strictly focuses on the influence of static hygrothermal phase-transition states on structural vibration.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"400 ","pages":"Article 121039"},"PeriodicalIF":7.8,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149350595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0