Acta Mechanica Solida Sinica最新文献_第7页

Influence of Fatigue Damage on Mechanical Behavior of Laminated Composite Under ± 45° Tension ±45°张力下疲劳损伤对层合复合材料力学性能的影响

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-12-01 DOI: 10.1007/s10338-025-00669-7

Oleg Staroverov, Artur Mugatarov, Elena Strungar, Ekaterina Chebotareva, Valeriy Wildemann

{"title":"Influence of Fatigue Damage on Mechanical Behavior of Laminated Composite Under ± 45° Tension","authors":"Oleg Staroverov, Artur Mugatarov, Elena Strungar, Ekaterina Chebotareva, Valeriy Wildemann","doi":"10.1007/s10338-025-00669-7","DOIUrl":"10.1007/s10338-025-00669-7","url":null,"abstract":"<div><p>In the present paper, the influence of fatigue damage on the mechanical behavior of carbon fiber reinforced plastic (CFRP) under static ± 45° tension has been investigated. Primary experimental data were provided for CFRP specimens (with [± 45]<sub>5</sub> layup) after static, cyclic tests and their combination. A postcritical deformation stage, also known as the necking stage, characterized by stress reduction during strain growth realization, has been found. A novel model has been developed to describe stiffness degradation during fatigue tests. A significant influence of preliminary cyclic loading on the composite’s properties and stress-strain curves has been found out. Inhomogeneous strain fields have been observed by using the digital image correlation method. Acoustic emission signals have revealed typical defects of the material’s structure; results have been confirmed by optical microscopy. The rationality of further investigation of fatigue damage influence on the mechanical behavior of CFRP has been concluded.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 8","pages":"1185 - 1196"},"PeriodicalIF":2.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Simulation of Interface Crack Initiation and Propagation Along Interphase in Multiphase Composites Using Arbitrary Multiphase Hybrid Stress Element 基于任意多相杂化应力单元的多相复合材料界面裂纹沿界面萌生和扩展数值模拟

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-11-28 DOI: 10.1007/s10338-025-00654-0

Wenyan Zhang, Ran Guo, Wei Xu, Runjie Wang

{"title":"Numerical Simulation of Interface Crack Initiation and Propagation Along Interphase in Multiphase Composites Using Arbitrary Multiphase Hybrid Stress Element","authors":"Wenyan Zhang, Ran Guo, Wei Xu, Runjie Wang","doi":"10.1007/s10338-025-00654-0","DOIUrl":"10.1007/s10338-025-00654-0","url":null,"abstract":"<div><p>Arbitrary multiphase hybrid stress finite element (AMHSFE) is a high-order stress element based on hybrid stress finite element theory, featuring extremely simple mesh division. It demonstrates strong capabilities for multiphase materials, particularly particulate reinforced composites (PRCs) with high amounts of particulate matter [1]. Since the behavior of interfaces in multiphase materials significantly impacts their mechanical properties, research on interface cracks in multiphase materials holds considerable significance. The AMHSFE is employed in this study to simulate interface cracks of varying morphologies in multiphase materials, as well as the whole process of the interface crack initiation and propagation in PRCs with varying particle quantities and distribution patterns. A comparison of the results with those from finite element method (FEM) software analyses demonstrates the analytical reliability, accuracy and validity of AMHSFE. Furthermore, the simulations demonstrate the capability of AMHSFE in analyzing interface crack initiation and propagation in realistic PRCs with tremendous amounts of particles.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 5","pages":"711 - 721"},"PeriodicalIF":2.7,"publicationDate":"2025-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148011995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Buckling Analysis of Sandwich Plates with Anisotropic or SMPC Laminate Facings and SMP Core Under Uniaxial Compression 各向异性夹层板和SMPC复合材料夹层板单轴压缩屈曲分析

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-11-25 DOI: 10.1007/s10338-025-00636-2

Hanxing Zhao, Fengfeng Li, Xin Lan, Liwu Liu, Yanju Liu, Jinsong Leng

引用次数: 0

Mechanical Response of Skin-Suture Interfaces with Fractal Interlocking Design 分形联锁设计皮肤缝合界面的力学响应

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-11-25 DOI: 10.1007/s10338-025-00667-9

Xiaogang Ji, Hao Jiang, Linlong Xu

{"title":"Mechanical Response of Skin-Suture Interfaces with Fractal Interlocking Design","authors":"Xiaogang Ji, Hao Jiang, Linlong Xu","doi":"10.1007/s10338-025-00667-9","DOIUrl":"10.1007/s10338-025-00667-9","url":null,"abstract":"<div><p>This study investigates how geometric structure influences the mechanical behavior of skin-suture interfaces by analyzing the mechanical response and application of fractal interlocking structures at wound sites. First, a fractal skin interface was designed based on the Koch interlocking model, and tensile failure tests were performed on various suture structures using digital image correlation. The research focused on the progressive failure behavior of the second-order-tooth skin-suture interface, examining the effects of tooth tip angle, fractal order, and centerline distribution form on tensile performance. The preferred fractal parameters were then applied to a surface wrist wound example, and numerical analysis explored the interface’s mechanical response characteristics under a joint-bending load, confirming the fractal structure’s practical superiority. The results show that a smaller tooth-tip angle, higher fractal order, and sinusoidal centerline structure all improve the tensile performance of the skin interface. The design of the fractal interlocking structure significantly increases the critical value for interface damage jitter, providing valuable guidance for improving postoperative skin-wound healing in clinical suture practice.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 8","pages":"1171 - 1179"},"PeriodicalIF":2.6,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intelligent Damage Assessment Method Based on Physics-Oriented Wavefield Sensing for Composite Laminates 基于面向物理波场传感的复合材料层合板损伤智能评估方法

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-11-24 DOI: 10.1007/s10338-025-00665-x

Jiyue Chen, Weihan Wang, Jueyong Zhu, Jianlin Chen, Mehrdad Negahban, Zheng Li

{"title":"Intelligent Damage Assessment Method Based on Physics-Oriented Wavefield Sensing for Composite Laminates","authors":"Jiyue Chen, Weihan Wang, Jueyong Zhu, Jianlin Chen, Mehrdad Negahban, Zheng Li","doi":"10.1007/s10338-025-00665-x","DOIUrl":"10.1007/s10338-025-00665-x","url":null,"abstract":"<div><p>Full wavefield-based damage detection method has received widespread attention, but the applications in composite structures still face big challenges for the requirements of baseline and full wavefields with dense sensing points. In this paper, an intelligent framework of guided wave-based damage assessment method for composite laminates is proposed. First of all, a physics-oriented deep learning model of long short-term memory (LSTM) is trained to predict full wavefield from incomplete measurements without requiring material parameters. Afterward, based on the smart sensing method, an intelligent damage assessment method is proposed to reconstruct a pseudo-baseline and visualize the damaged region. Numerical simulations and experimental tests have been conducted to investigate the effectivity of the proposed smart sensing method, which can predict the full wavefield beyond the sensing region with high Pearson correlation coefficients (> 0.98) and reconstruct a pseudo-baseline wavefield for damage detection. Results show the proposed damage detection method can visualize the single/multiple damaged regions in composite laminates with precise locations and sizes. In summary, this study provides an essential and promising approach for damage assessment by sensing and analyzing the guided waves in composite laminates.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 8","pages":"1144 - 1155"},"PeriodicalIF":2.6,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rate-Dependent Augmented Finite Element Method for Arbitrary Crack Growth Under Cyclic and Impact Loading 循环和冲击载荷下任意裂纹扩展的速率相关增广有限元法

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-11-24 DOI: 10.1007/s10338-025-00666-w

Qinbo Zhang, Xie Zhao, Weiming Tao

{"title":"Rate-Dependent Augmented Finite Element Method for Arbitrary Crack Growth Under Cyclic and Impact Loading","authors":"Qinbo Zhang, Xie Zhao, Weiming Tao","doi":"10.1007/s10338-025-00666-w","DOIUrl":"10.1007/s10338-025-00666-w","url":null,"abstract":"<div>\u0000 \u0000 <p>Experimental observations indicate that the loading rate, such as frequency in cyclic loading or velocity in impact loading, can significantly influence crack propagation. To accurately capture this phenomenon in numerical simulations, this study introduces a rate-dependent augmented finite element method (AFEM), which enables the analysis of crack propagation along arbitrary paths under repetitive loading. The method employs the maximum principal stress criterion to determine whether a crack will propagate and to predict its growth path. The crack propagation path splits the existing elements into two sub-elements, which are then reassembled with cohesive elements inserted between them to create augmented finite elements. The cohesive elements are based on a rate-dependent cohesive zone model (CZM) and account for the accumulation of damage, reflecting the rate dependence of material damage and cracking during repeated loading. The internal nodal degrees of freedom (DoFs) of the augmented finite elements are condensed, retaining only the external nodal DoFs. Based on the proposed methodology, this study develops a numerical algorithm implemented through a user-defined element (UEL) subroutine in the commercial finite element software ABAQUS. The proposed approach is validated through case studies involving both cyclic and impact loading scenarios. Results demonstrate that the method can predict arbitrary crack propagation paths under different loading frequencies and velocities, providing an effective tool for analyzing rate-dependent fracture processes in engineering structures.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 8","pages":"1156 - 1170"},"PeriodicalIF":2.6,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gradient Optimization Assisted Bubble Sampling Method for Structural Reliability Analysis 结构可靠性分析的梯度优化辅助气泡抽样方法

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-11-14 DOI: 10.1007/s10338-025-00663-z

Zeng Meng, Liwenjie Shen, Changquan Li, Jiaxiang Yi, Gang Dong

引用次数: 0

Nonlinear Spectral Analysis of a GRFHC Circular Plate Coupled with Dynamic Vibration Absorber 动态减振器耦合GRFHC圆板的非线性谱分析

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-11-14 DOI: 10.1007/s10338-025-00650-4

Zhengzhe Li, Rui Zhong, Qingshan Wang, Bin Qin

{"title":"Nonlinear Spectral Analysis of a GRFHC Circular Plate Coupled with Dynamic Vibration Absorber","authors":"Zhengzhe Li, Rui Zhong, Qingshan Wang, Bin Qin","doi":"10.1007/s10338-025-00650-4","DOIUrl":"10.1007/s10338-025-00650-4","url":null,"abstract":"<div><p>A multivariate analysis method that utilizes the time-domain response under harmonic excitation of the corresponding frequency and its displacement spectrum to assist in analyzing nonlinear amplitude-frequency responses is proposed, which is aimed at investigating the nonlinear characteristics of a honeycomb core sandwich circular plate with functionally graded graphene platelet-reinforced composite face (GRFHC) coupled with dynamic vibration absorber (DVA). Considering both geometric nonlinearity and the first-order shear deformation theory (FSDT), the Spectro-Geometric Method and incremental harmonic balance (IHB) are employed to obtain the nonlinear amplitude-frequency response, which is further analyzed in conjunction with the nonlinear time-domain response under harmonic excitation and its displacement spectrum, providing a comprehensive evaluation of the nonlinear behavior of the circular plate based on the computationally derived nonlinear resonance range and the amplitude of super-harmonic. On this basis, the paper reveals how positive and negative Poisson's ratios affect the impact absorption performance of honeycomb sandwich structures, quantifies the nonlinear suppression effect of DVA, summarizes the optimal graphene-platelet layering method, and investigates the influence of plate geometric parameters, boundary conditions on nonlinear amplitude-frequency responses, as well as the underlying mechanisms governing how parameters affect these responses.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 6","pages":"857 - 878"},"PeriodicalIF":2.6,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Domain Switching in Relaxed Tetragonal-Phase Ferroelectric Single Crystals Under Nanoindentation 纳米压痕下松弛四方相铁电单晶的畴切换

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-11-12 DOI: 10.1007/s10338-025-00664-y

Guian Man, Changjun Qi, Yujuan Peng, Jiawei Wang, Yixuan Jiang, Xingzhe Wang

{"title":"Domain Switching in Relaxed Tetragonal-Phase Ferroelectric Single Crystals Under Nanoindentation","authors":"Guian Man, Changjun Qi, Yujuan Peng, Jiawei Wang, Yixuan Jiang, Xingzhe Wang","doi":"10.1007/s10338-025-00664-y","DOIUrl":"10.1007/s10338-025-00664-y","url":null,"abstract":"<div><p>Relaxor ferroelectric single-crystal materials have attracted extensive attention because of their extremely high piezoelectric and electromechanical coupling properties, but research on their mechanically induced domain switching properties under different strain rates is still lacking. In this paper, the domain switching dynamics exhibited by the PMN-0.36PT relaxor ferroelectric single crystal (with a tetragonal phase structure) under nanoindentation with variable strain rates are investigated via transmission electron microscopy in combination with the phase-field method. The microstructural material changes observed through transmission electron microscopy show that the T phase of the relaxor ferroelectric material undergoes 90° domain switching under nanoindentation. The results of a phase-field simulation involving nanoindentation with different strain rates further show that the T phase of the relaxor ferroelectric material undergoes 90° domain switching, the domain wall moves, and the original domain becomes wider directly under the indenter. Moreover, there is no correlation between the domain switching and loading rates. The phase-field simulation results are consistent with the experimental results, providing new insights into the mechanical force regulation properties of domain switching in relaxor ferroelectric materials.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 3","pages":"291 - 297"},"PeriodicalIF":2.7,"publicationDate":"2025-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147559534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Skeleton-Reinforced Neural Style Transfer-Assisted Topology Optimization Method for the Aesthetic and Manufacturable Design 美学与可制造性设计的骨架增强神经风格转移辅助拓扑优化方法

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-11-05 DOI: 10.1007/s10338-025-00661-1

Yang Zhou, Gang He, Zhengtong Han, Ze Xu, Ronghua Chen

{"title":"Skeleton-Reinforced Neural Style Transfer-Assisted Topology Optimization Method for the Aesthetic and Manufacturable Design","authors":"Yang Zhou, Gang He, Zhengtong Han, Ze Xu, Ronghua Chen","doi":"10.1007/s10338-025-00661-1","DOIUrl":"10.1007/s10338-025-00661-1","url":null,"abstract":"<div><p>High-performance structures with specific aesthetic features are appealing in various fields and can be tailored through the neural network-assisted topology optimization (NNTO) method. However, the statistical and content-based characteristics of the stylistic features generally lead to overly complex and impractical designs. Therefore, a skeleton-reinforced NNTO method was proposed to design novel structures simultaneously with desired stylistic features and excellent manufacturability. Using the density-based topology optimization method, the convolutional neural network was adopted to introduce stylistic feature constraints. Then the minimum length scale was strictly constrained according to the structural skeleton, which was accurately extracted by the graphic thinning algorithm. The influence of key parameters in the algorithm was deeply studied through a series of numerical examples, and the approximate ranges were determined and verified. Finally, the effectiveness and robustness for designing the stiffest structures with stylistic features and desired minimum length scale were completely proved.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 8","pages":"1122 - 1131"},"PeriodicalIF":2.6,"publicationDate":"2025-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0