Journal of Elasticity最新文献_第3页

Mindlin’s Problem for a Surface-Stiffened Exponentially-Graded Transversely Isotropic Half-Space 面加劲指数梯度横向各向同性半空间的Mindlin问题

IF 1.4 3区工程技术

Journal of Elasticity Pub Date : 2025-06-19 DOI: 10.1007/s10659-025-10147-3

Parham Samea, S. Farzad Ahmadi

引用次数: 0

Rayleigh Wave Propagation in Micropolar Layered Media with Perfect and Slip Interfaces 具有完美界面和滑移界面的微极层状介质中的瑞利波传播

IF 1.4 3区工程技术

Journal of Elasticity Pub Date : 2025-06-18 DOI: 10.1007/s10659-025-10143-7

Santanu Manna, Deepak, Manasa Bhat

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Elastodynamic Fundamental Solutions of a Transversely Isotropic Unsaturated Half-Space Subjected to Axisymmetric Buried Vertical and Fluid Loading 横向各向同性非饱和半空间在轴对称埋置垂直和流体载荷作用下的弹性动力学基本解

IF 1.4 3区工程技术

Journal of Elasticity Pub Date : 2025-06-17 DOI: 10.1007/s10659-025-10144-6

K. Yoonirundorn, T. Senjuntichai, S. Keawsawasvong, R. K. N. D. Rajapakse

{"title":"Elastodynamic Fundamental Solutions of a Transversely Isotropic Unsaturated Half-Space Subjected to Axisymmetric Buried Vertical and Fluid Loading","authors":"K. Yoonirundorn, T. Senjuntichai, S. Keawsawasvong, R. K. N. D. Rajapakse","doi":"10.1007/s10659-025-10144-6","DOIUrl":"10.1007/s10659-025-10144-6","url":null,"abstract":"<div><p>This paper presents solutions for a transversely isotropic unsaturated half-space subjected to axisymmetric time-harmonic vertical and fluid pressure loading. The Biot’s coupled poroelastodynamic equations are modified to include the unsaturated case by adding the air phase into the balance equations. The resulting fully coupled field equations of the three-phase medium are analytically solved to obtain the frequency-domain general solutions by using Hankel integral transforms in the radial direction. A boundary value problem is then formulated to obtain explicit expressions for the solutions of a half-space subjected to internally applied time-harmonic vertical loading and applied fluid pressure. To validate the accuracy of the proposed formulation, a comparison is made with existing solutions for surface loading on an unsaturated half-space. Numerical results are presented to illustrate the influence of the degree of saturation and the frequency of excitation on the dynamic response of the unsaturated half-space under internal excitations. The analysis reveals significant differences in profiles of displacement, stress, and pore pressure for the unsaturated soils compared to fully saturated cases, highlighting the importance of incorporating partial saturation in dynamic poroelastic modelling for geotechnical and earthquake engineering applications.</p></div>","PeriodicalId":624,"journal":{"name":"Journal of Elasticity","volume":"157 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166683","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

Some Remarks on the Principal Stretch Versus Invariant Formulation for Constitutive Modeling of Incompressible Isotropic Hyperelastic Materials 不可压缩各向同性超弹性材料本构建模中主拉伸与不变公式的若干注释

IF 1.4 3区工程技术

Journal of Elasticity Pub Date : 2025-06-04 DOI: 10.1007/s10659-025-10142-8

C. O. Horgan, J. G. Murphy

引用次数: 0

A Note on the Universal Deformations of Incompressible Isotropic Bodies 不可压缩各向同性物体的普遍变形注记

IF 1.4 3区工程技术

Journal of Elasticity Pub Date : 2025-06-04 DOI: 10.1007/s10659-025-10141-9

Seyedemad Motaghian

引用次数: 0

In-Plane Static Behavior of Nonlocal Curved Nanobeams Resting on an Elastic Foundation Determined Using the Initial Value Method 基于弹性地基的非局部弯曲纳米梁面内静力行为的初值法研究

IF 1.4 3区工程技术

Journal of Elasticity Pub Date : 2025-05-30 DOI: 10.1007/s10659-025-10140-w

Reha Artan, Ayşegül Tepe

{"title":"In-Plane Static Behavior of Nonlocal Curved Nanobeams Resting on an Elastic Foundation Determined Using the Initial Value Method","authors":"Reha Artan, Ayşegül Tepe","doi":"10.1007/s10659-025-10140-w","DOIUrl":"10.1007/s10659-025-10140-w","url":null,"abstract":"<div><p>Curved nanobeams are fundamental components of nanoscale systems, such as nano and microelectromechanical systems, where accurate modeling of small-scale effects is essential for achieving high precision. This study introduces a novel framework for analyzing the in-plane static behavior of curved nanobeams resting on an elastic foundation, particularly for small displacements. Nonlocal constitutive equations are derived based on nonlocal elasticity theory and solved using the initial value method and the approximate transfer matrix approach to address the challenges arising from the high degree of statical indeterminacy. A convergence analysis is conducted, showing that the proposed method provides a systematic and computationally efficient solution. A parametric analysis reveals that the nonlocal parameter, elastic foundation, and opening angle significantly influence the displacements in the tangential and normal directions, the rotation and bending moment in the binormal direction, the shear force in the normal direction, and the axial force in the tangential direction. These findings further elucidate the mechanics of curved nanostructures, contributing to the design and optimization of nanoscale devices.</p></div>","PeriodicalId":624,"journal":{"name":"Journal of Elasticity","volume":"157 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10659-025-10140-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructural Basis of Complex Mechanical Programming in Liquid Crystal Elastomers 液晶弹性体复杂力学规划的微观结构基础。

IF 1.4 3区工程技术

Journal of Elasticity Pub Date : 2025-05-29 DOI: 10.1007/s10659-025-10138-4

Morgan Barnes, John S. Biggins

{"title":"Microstructural Basis of Complex Mechanical Programming in Liquid Crystal Elastomers","authors":"Morgan Barnes, John S. Biggins","doi":"10.1007/s10659-025-10138-4","DOIUrl":"10.1007/s10659-025-10138-4","url":null,"abstract":"<div><p>Liquid crystal elastomers (LCEs) are actuating soft solids that exhibit large and reversible contractions along the liquid crystal director on heating through the nematic-isotropic transition. Recently, mechanical programming was used to fabricate LCEs that can actuate into arbitrarily complex shapes such as a face. Here, we combine theoretical and experimental observations to explain how such complex mechanical programming works. Crucially, we identify the intermediate pre-programmed state as an isotropic genesis polydomain, which, during programming, can accommodate the imposed strains via a pure soft-mode response enabled by director rotation and laminar microstructures. Second cross-linking fixes these microstructures as preferred but, since they were achieved softly, they do not involve any reconfiguration of the isotropic state, allowing it to be restored on heating. Experimental observations of programmed LCEs reveal both single and double laminate structures, as anticipated by the theory, and also a quantitative match between the 3D deformations that can and cannot be programmed. The set of programmable deformations includes all modest isochoric deformations, explaining why arbitrary shape programming works. Finally, we demonstrate theoretically and experimentally that programming also allows one to engineer samples with desired extents of softness in different directions.</p></div>","PeriodicalId":624,"journal":{"name":"Journal of Elasticity","volume":"157 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12122613/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On Mappings and Deformation Processes 关于映射和变形过程

IF 1.4 3区工程技术

Journal of Elasticity Pub Date : 2025-05-28 DOI: 10.1007/s10659-025-10139-3

M. B. Rubin, Lorenzo Bardella

引用次数: 0

On the Constitutive Behavior of Linear Viscoelastic Solids Under the Plane Stress Condition 平面应力条件下线性粘弹性固体的本构行为研究

IF 1.8 3区工程技术

Journal of Elasticity Pub Date : 2025-05-27 DOI: 10.1007/s10659-025-10136-6

Bojan B. Guzina, Marc Bonnet

{"title":"On the Constitutive Behavior of Linear Viscoelastic Solids Under the Plane Stress Condition","authors":"Bojan B. Guzina, Marc Bonnet","doi":"10.1007/s10659-025-10136-6","DOIUrl":"10.1007/s10659-025-10136-6","url":null,"abstract":"<div><p>Motivated by the recent experimental and analytical developments enabling high-fidelity material characterization of (heterogeneous) sheet-like solid specimens, we seek to elucidate the constitutive behavior of linear viscoelastic solids under the plane stress condition. More specifically, our goal is to expose the relationship between the plane-stress viscoelastic constitutive parameters and their (native) “bulk” counterparts. To facilitate the sought reduction of the three-dimensional (3D) constitutive behavior, we deploy the concept of projection operators and focus on the frequency-domain behavior by resorting to the Fourier transform and the mathematical framework of tempered distributions, which extends the Fourier analysis to functions (common in linear viscoelasticity) for which Fourier integrals are not convergent. In the analysis, our primary focus is the on class of linear viscoelastic solids whose 3D rheological behavior is described by a set of constant-coefficient ordinary differential equations, each corresponding to a generic arrangement of “springs” and “dashpots”. On reducing the general formulation to the isotropic case, we proceed with an in-depth investigation of viscoelastic solids whose bulk and shear modulus each derive from a suite of classical “spring and dashpot” configurations. To enable faithful reconstruction of the 3D constitutive parameters of natural and engineered solids via (i) thin-sheet testing and (ii) applications of the error-in-constitutive-relation approach to the inversion of (kinematic) sensory data, we also examine the reduction of thermodynamic potentials describing linear viscoelasticity under the plane stress condition. The analysis is complemented by a set of analytical and numerical examples, illustrating the effect on the plane stress condition on the behavior of isotropic and anisotropic viscoelastic solids.</p></div>","PeriodicalId":624,"journal":{"name":"Journal of Elasticity","volume":"157 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10659-025-10136-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Work and Activation in a Nematic Polymer Network Ribbon 向列相聚合物网状带的工作和活化

IF 1.4 3区工程技术

Journal of Elasticity Pub Date : 2025-05-27 DOI: 10.1007/s10659-025-10137-5

Harmeet Singh, Krishnan Suryanarayanan, Epifanio G. Virga

引用次数: 0