International Journal of Solids and Structures最新文献_第7页

Effective elastic moduli and failure mechanisms of a random assembly of thin walled glass microbubbles 薄壁玻璃微泡随机组合的有效弹性模量及破坏机制

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-16 DOI: 10.1016/j.ijsolstr.2025.113528

Antonios E. Giannakopoulos , Athanasios Zisis , Anna D. Zervaki , Christos D. Dimopoulos , Efstathios Platypodis , Robert Eberwein

{"title":"Effective elastic moduli and failure mechanisms of a random assembly of thin walled glass microbubbles","authors":"Antonios E. Giannakopoulos , Athanasios Zisis , Anna D. Zervaki , Christos D. Dimopoulos , Efstathios Platypodis , Robert Eberwein","doi":"10.1016/j.ijsolstr.2025.113528","DOIUrl":"10.1016/j.ijsolstr.2025.113528","url":null,"abstract":"<div><div>In this work a methodology is presented to estimate the elastic properties and failure mechanisms of an assembly of random, brittle microbubbles. The approach is based on the mechanics of frictionless micro-contact between hollow spherical shells by employing relations from classical shell theory and verified by two dimensional axisymmetric Finite Elements. The estimated values are in agreement with available experimental values. Moreover, a granular type analytical homogenization model provides an isotropic elastic constitutive law to be used for the macroscopic deformation of an assembly of glass micro-bubbles when it is compressed by external loads. In addition, approximate estimates are also proposed for two important micro-failure mechanisms of such assemblies that relate either to the splitting or to the buckling of a brittle spherical shell, prior its complete crushing. The results are novel and are expected to enhance the application of glass microbubbles directly in acute thermal insulation problems such as liquid hydrogen storage.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113528"},"PeriodicalIF":3.4,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314472","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

A numerical study of the evolution of martensitic crack-tip transformation zones in strain-softening pseudoelastic shape memory alloys 应变软化伪弹性形状记忆合金马氏体裂纹尖端转变区演化的数值研究

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-14 DOI: 10.1016/j.ijsolstr.2025.113492

Hongrui Yu, Chad M. Landis

{"title":"A numerical study of the evolution of martensitic crack-tip transformation zones in strain-softening pseudoelastic shape memory alloys","authors":"Hongrui Yu, Chad M. Landis","doi":"10.1016/j.ijsolstr.2025.113492","DOIUrl":"10.1016/j.ijsolstr.2025.113492","url":null,"abstract":"<div><div>A numerical investigation is performed for strain softening shape memory alloys utilizing a gradient enhanced constitutive model with the finite element method to study the martensitic transformation near the crack tip under mode-I far-field loading. A unique interaction between the length scales, namely the transformation zone size and the material length scale in a softening shape memory alloy, and the morphology of the transformation zone is revealed. Under mode-I loading, the martensitic transformation produces distinct “needles” of intense transformation, and the overall shape of the transformation zone is similar to that in standard plasticity with the size scaling with the square of the far-field applied stress intensity factor divided by the square of the upper plateau transformation stress. Additional simulations reveal that the presence of <span><math><mi>T</mi></math></span>-stress facilitates the development of these needles and changes their orientation near the crack tip. These simulations indicate that careful observation of the transformation zones near crack tips in SMAs can be used to estimate the characteristic length scale associated with the austenite-to-martensite transition boundary in softening materials.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113492"},"PeriodicalIF":3.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307875","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

A practical method for robust elastic characterisation of mortar in flat jack tests 平板千斤顶试验中砂浆鲁棒弹性特性的实用方法

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-14 DOI: 10.1016/j.ijsolstr.2025.113503

Miles Robert William Judd, Marialuigia Sangirardi, Sinan Acikgoz

{"title":"A practical method for robust elastic characterisation of mortar in flat jack tests","authors":"Miles Robert William Judd, Marialuigia Sangirardi, Sinan Acikgoz","doi":"10.1016/j.ijsolstr.2025.113503","DOIUrl":"10.1016/j.ijsolstr.2025.113503","url":null,"abstract":"<div><div>Standard interpretations of in-situ flat jack tests rely on uniform stress states and only provide information on the mechanical properties of masonry as a composite and not those of its individual constituents. This paper develops a practical approach to identify the elastic characteristics of mortar using surface strain measurements (e.g. from Digital Image Correlation). It aims to provide robust identification under uncertain jack loads and stochastic material properties. A setup composed of three flat jacks inserted in masonry joints is explored in a micro-scale numerical model to develop the approach. The resulting surface strains are processed using the Virtual Fields Method to simultaneously and non-iteratively identify the mortar’s Young’s and shear modulus. Instead of the uncertain jack loads, mechanical properties of bricks, which are easy to obtain from laboratory testing of extracted samples, are used for the identification. The identified Young’s and shear moduli are robust against variations in jack penetration depth, measurement noise, stochastic material variability, and inaccuracies in brick properties. Poisson’s ratios are also identified, but less robustly, due to their limited influence on the measured strains. Finally, the use of VFM to reconstruct the uncertain jack forces is illustrated to deliver new insights on the applied loads during complex in-situ tests.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113503"},"PeriodicalIF":3.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331286","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

Bending and vibration analyses of functionally graded auxetic doubly curved shells via dual mesh control domain model 基于双网格控制域模型的功能梯度退化双弯曲壳的弯曲和振动分析

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-14 DOI: 10.1016/j.ijsolstr.2025.113526

Zeyu Jiao , Shaoyu Zhao , Guannan Wang , Rongqiao Xu , Jie Yang

{"title":"Bending and vibration analyses of functionally graded auxetic doubly curved shells via dual mesh control domain model","authors":"Zeyu Jiao , Shaoyu Zhao , Guannan Wang , Rongqiao Xu , Jie Yang","doi":"10.1016/j.ijsolstr.2025.113526","DOIUrl":"10.1016/j.ijsolstr.2025.113526","url":null,"abstract":"<div><div>This paper presents a novel dual mesh control domain (DMCD) model for the static bending and free vibration analysis of functionally graded (FG) graphene origami (GOri)-enabled auxetic metamaterial (GOEAM) doubly curved shells within the framework of the first-order shear deformation theory and modified Sanders assumptions. The shell consists of multilayered GOEAMs where the GOri content varies across the shell thickness in a layer-wise manner, leading to graded variations in auxetic and other material properties. Genetic programming (GP)-assisted micromechanical models are employed to estimate the material properties, including Poisson’s ratio, Young’s modulus, coefficient of thermal expansion (CTE), and mass density of the GOEAM in each layer. Governing equations are derived by the principle of virtual work and numerically solved using the dual mesh control domain method (DMCDM). The accuracy and convergence of the DMCD model are first verified, followed by a systematic investigation of the effects of GOri content, folding degree, temperature, and length-to-thickness ratio on the bending deflection, normal stress and fundamental frequency of FG-GOEAM doubly curved shells. The numerical results provide valuable insights for designing FG-GOEAM doubly curve shells in aerospace engineering with tunable negative Poisson’s ratio and enhanced mechanical properties.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113526"},"PeriodicalIF":3.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331294","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

Local formability and bendability of UHSS: Correlations between bending and tensile fracture strains 超高压钢的局部成形性和可弯曲性：弯曲和拉伸断裂应变的相关性

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-14 DOI: 10.1016/j.ijsolstr.2025.113524

Aki-Petteri Pokka , Vili Kesti , Antti Kaijalainen

{"title":"Local formability and bendability of UHSS: Correlations between bending and tensile fracture strains","authors":"Aki-Petteri Pokka , Vili Kesti , Antti Kaijalainen","doi":"10.1016/j.ijsolstr.2025.113524","DOIUrl":"10.1016/j.ijsolstr.2025.113524","url":null,"abstract":"<div><div>This study investigates the correlation between bendability and local formability properties of six ultra-high strength steel (UHSS) grades using small radius air-bending tests, uniaxial tensile tests, and plane-strain tensile tests with grooved specimens. Digital image correlation (DIC) was employed to measure surface strains, while post-mortem thickness measurements provided through-thickness strain data from the tensile tests. A novel strain-based method was used for bending fracture detection, offering improved accuracy over conventional methods such as the load drop thresholds defined in the VDA 238-100 specification. The bending fracture strain showed a moderate correlation (R<sup>2</sup> = 0.73) with the plane-strain tensile fracture thickness strain. In contrast, correlations between bending fracture strain and uniaxial tensile fracture measures were weak (R<sup>2</sup> = 0.38–0.53). No clear relationships were found between bending fracture strain and conventional tensile parameters such as total elongation or strain hardening exponent. The findings of this paper highlight the complexities in predicting bendability from tensile measures due to stress state differences and underscore the importance of bending tests for accurate characterization of sheet metal formability.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113524"},"PeriodicalIF":3.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331285","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

Assessment of crystal-plasticity simulation: Plastic behaviors in biaxial stress states and cylindrical deep drawing 晶体塑性模拟的评估：双轴应力状态下的塑性行为和圆柱拉深

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-13 DOI: 10.1016/j.ijsolstr.2025.113521

Kengo Yoshida , Aoi Ota , Takayuki Hama

{"title":"Assessment of crystal-plasticity simulation: Plastic behaviors in biaxial stress states and cylindrical deep drawing","authors":"Kengo Yoshida , Aoi Ota , Takayuki Hama","doi":"10.1016/j.ijsolstr.2025.113521","DOIUrl":"10.1016/j.ijsolstr.2025.113521","url":null,"abstract":"<div><div>This study investigates the predictive accuracy of a crystal-plasticity finite-element method for plastic behavior in uniaxial and biaxial stress states as well as the cup height and limiting drawing ratio (LDR) in cylindrical deep drawing. The <em>R</em> value, which is the ratio of width-to-thickness plastic strains, significantly affects the cup height, while the flow stresses in the plane-strain tension and tensile–compression combined stress states determine the LDR. Experiments and crystal-plasticity simulations of uniaxial tension and various biaxial stress tests are conducted. Custom-designed antibuckling plates are used to simultaneously apply tension and compression to sheet specimens. The crystal-plasticity simulation accurately predicts the <em>R</em> values and the flow stresses for the plane-strain tension and tension–compression biaxial stress states when the strain was less than 0.05. In the cylindrical deep drawing simulations, cups are safely drawn when the drawing ratio ranges from 1.8 to 2.0, and the strain localization is predicted at the bottom of the cup wall when the draw ratio is 2.1 or higher. Both the experiments and simulations yield an LDR of 2.0. When the drawing ratio is between 1.8 and 2.0, the predicted cup heights agree with the experimental results. Therefore, the crystal-plasticity simulation accurately predicts the mechanical properties of the specimen as well as the cup height and LDR in cylindrical deep drawing. Although the crystal-plasticity model predicts the LDR accurately, it overestimates the formability. In the large-strain range, the crystal-plasticity model overestimates the work hardening and predicts the higher formability. We found that the anisotropic hardening in the large-strain range is crucial to further improve the accuracy of crystal-plasticity simulations.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113521"},"PeriodicalIF":3.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365726","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

Probing the origin of surface defects in large strain deformation processes 探究大应变变形过程中表面缺陷的成因

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-11 DOI: 10.1016/j.ijsolstr.2025.113464

Deepika Gupta, Vineet Dawara, Koushik Viswanathan

{"title":"Probing the origin of surface defects in large strain deformation processes","authors":"Deepika Gupta, Vineet Dawara, Koushik Viswanathan","doi":"10.1016/j.ijsolstr.2025.113464","DOIUrl":"10.1016/j.ijsolstr.2025.113464","url":null,"abstract":"<div><div>Surface quality is the direct result of tribological interactions accompanying large-strain deformation processes such as cutting or machining. Surface topography and mechanical properties are strongly influenced by near-tool-tip deformation mechanisms that govern defect formation and residual strain distribution. In this work, we investigate these phenomena using an <em>in situ</em> imaging framework of a prototypical surface generation process, analyzed using a recently developed image correlation method termed Ensemble Averaged Digital Image Correlation (EADIC). This approach enables high-resolution analysis of strain fields near tribological contacts and free surfaces. Kinematic analysis near the tool tip reveals that deformation progresses through three distinct stages: material pinning at the tool tip, internal shear leading to dead zone formation, and subsequent dead zone growth. Correspondingly, three types of surface defects are classified—type 1 defects lacking a specific morphological profile are associated with material pinning, type 2 defects characterized by step-like profiles arise from partial dead zone shearing, and type 3 defects with pronounced steps are formed during complete shearing of dead zones till tool tip. The evolution of these defects is tied to transient stages of near-tip deformation. Investigations reveal that transient force signature during cut can serve as probable indicators of defect type. The experiments also allow us to quantify residual strain near the machined surface, confined to a fraction of the cutting depth, with defects exhibiting elevated strain due to separation from the dead zone. These findings directly link transient deformation dynamics to surface quality, providing a framework for optimizing machining processes to reduce defects and improve performance.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113464"},"PeriodicalIF":3.4,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144320924","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

Thick-panel origami-inspired deployable pyramids 厚面板折纸灵感展开金字塔

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-11 DOI: 10.1016/j.ijsolstr.2025.113519

Xiaozhao Zhang, Wujun Chen

{"title":"Thick-panel origami-inspired deployable pyramids","authors":"Xiaozhao Zhang, Wujun Chen","doi":"10.1016/j.ijsolstr.2025.113519","DOIUrl":"10.1016/j.ijsolstr.2025.113519","url":null,"abstract":"<div><div>For specific satellites, it’s undesirable to be detected by other entities during mission execution. The Radar-Cross-Section (RCS) of pyramidal configurations is remarkably low, implying that they are difficult to be detected by radar, which suggests deployable pyramids of great potential for satellite applications. This article introduces two versatile methods for folding pyramids using thick-panel origami. The first approach emphasizes the addition of auxiliary panels to enhance the connection between adjacent slanted panels, enabling single-degree-of-freedom motion. With the inclusion of auxiliary panels, each corner unit comprises five components, resembling the construction of the Myard mechanism. The unfolding processes of multiple pyramids are demonstrated, along with the potential application of a reconfigurable spacecraft. The second method involves modifying the slanted panels and combining two mirrored slanted panels into one basic unit. Connecting the ends of multiple basic units enables the folding of pyramids. The degrees of freedom of quadrangular pyramids, hexagonal pyramids, and octagonal pyramids at non-singular points are solved to be one, one, and two, respectively. Furthermore, analytical solutions for the motion equations of the three cases are derived, and their complete motion processes are demonstrated. Finally, a potential application case of the second proposed scheme is presented.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113519"},"PeriodicalIF":3.4,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307876","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

Design of hard-magnetic soft laminated composites for wide longitudinal wave band gaps using topology optimization 基于拓扑优化的宽纵波带隙硬磁软层合复合材料设计

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-11 DOI: 10.1016/j.ijsolstr.2025.113493

Zeeshan Alam , Atul Kumar Sharma , Vineeth P. Ramachandran

{"title":"Design of hard-magnetic soft laminated composites for wide longitudinal wave band gaps using topology optimization","authors":"Zeeshan Alam , Atul Kumar Sharma , Vineeth P. Ramachandran","doi":"10.1016/j.ijsolstr.2025.113493","DOIUrl":"10.1016/j.ijsolstr.2025.113493","url":null,"abstract":"<div><div>As a class of soft active materials, hard-magnetic soft materials (HMSMs) exhibit rapid, reversible deformations, high remanence, and the ability to alter their instantaneous moduli in response to applied magnetic fields. These properties make periodic laminated composites of HMSMs promising candidates for phononic crystals (PnCs), which can exhibit tunable band gaps – frequency ranges in which elastic or acoustic waves are prohibited – by manipulating magnetic fields. PnCs with broad and adjustable band gaps are highly desirable for applications such as elastic/acoustic filters, waveguides, noise reduction, sensors, and acoustic cloaking devices. To improve the performance of magnetically actuated laminated PnCs composed of HMSMs, a gradient-based topology optimization framework is proposed to maximize the longitudinal elastic wave band gap width. The optimization employs a nonlinear, hyperelastic, compressible Gent material model to describe the constitutive behavior of the composite phases. For band gap extraction, an in-house finite element model is used, where the properties of each finite element are treated as design variables in the topology optimization process. An analytical sensitivity calculation is performed to compute the gradient of the band gap maximization function. A parametric study demonstrates the effectiveness of the model by examining the influence of the external magnetic field on the optimized band gap characteristics and unit cell design of the periodic laminated composite. This optimization framework provides valuable insights for the design of advanced, remotely controlled wave manipulation devices.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113493"},"PeriodicalIF":3.4,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298726","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

Lost in homogenisation: Navigating the challenges of predicting ideal behaviour in inhomogeneous porous structures 迷失在均质化中：在非均质多孔结构中预测理想行为的挑战

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2025-06-11 DOI: 10.1016/j.ijsolstr.2025.113522

Markus Wagner , Sebastian Wurm , Georg Baumann , Tiina Nypelö , Florian Feist

{"title":"Lost in homogenisation: Navigating the challenges of predicting ideal behaviour in inhomogeneous porous structures","authors":"Markus Wagner , Sebastian Wurm , Georg Baumann , Tiina Nypelö , Florian Feist","doi":"10.1016/j.ijsolstr.2025.113522","DOIUrl":"10.1016/j.ijsolstr.2025.113522","url":null,"abstract":"<div><div>We introduce a novel <em>meta</em>-modelling approach coupled with a four-part piecewise constitutive model to predict the compressive behaviour of homogeneous foams using data from inhomogeneous specimens. This method estimates individual density layer responses within the foam, enabling the prediction of compression behaviour for ideal density configurations. Validated through cellulose pulp fibre foam experiments utilising Digital Image Correlation (DIC) analysis and finite element simulations of synthetic expanded polystyrene (EPS) foam, our <em>meta</em>-model effectively derives material properties from imperfect foams of varying densities, while accounting for errors induced by density variations. It accurately captures foam material response from initial compression through densification. Our approach offers significant advantages for optimising foam structures without costly commercial software or ideal specimens, bridging the gap between real-world materials and idealised models. While initially designed for cellulose pulp fibre foams, this model shows broad potential for evaluating various foams with density variations, including both sustainable and non-sustainable materials.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"320 ","pages":"Article 113522"},"PeriodicalIF":3.4,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298725","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