International Journal of Solids and Structures最新文献_第8页

Microscopic instabilities in single crystal matrix composites 单晶基复合材料的微观不稳定性

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-22 DOI: 10.1016/j.ijsolstr.2024.113035

Jacob Aboudi , Srihari Dodla , Rivka Gilat

{"title":"Microscopic instabilities in single crystal matrix composites","authors":"Jacob Aboudi , Srihari Dodla , Rivka Gilat","doi":"10.1016/j.ijsolstr.2024.113035","DOIUrl":"10.1016/j.ijsolstr.2024.113035","url":null,"abstract":"<div><p>A finite strain micromechanical analysis is presented for the prediction of the loss of microscopic stability of a class of metal matrix composites that are subjected to axial compressive loading and undergoing large deformations. The metallic constituent behavior is modeled by the single crystal anisotropic plasticity theory in which, due to the resolved shear stresses, plastic deformations occur along certain pre-defined slip planes. Thus, this incremental plasticity theory is capable of providing the effect of the applied axial loading on the induced shear stresses which dominate the microbuckling. The composites are assumed to possess slight imperfections at the interfaces, and in order to satisfy the interfacial conditions, a perturbation expansion is employed which yields zero and first order micromechanical analysis problems. The zero order problem corresponds to the micromechanical modeling of the composite with no imperfections, whereas the solution of the first order problem is utilized to obtain the critical stresses and deformations at which bifurcation buckling occurs. Both problems are solved by employing the finite strain high-fidelity generalized method of cells (HFGMC) micromechanics. Applications are given for various types of single crystal matrix composites including layered, particulate, continuous and short fiber composites. Finally, a comparison between the compressive strengths of a standard metal matrix boron/aluminum and SiC/single crystal composites is presented and discussed.</p></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"304 ","pages":"Article 113035"},"PeriodicalIF":3.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142050175","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

New numerical resolution of the elastic quarter-space, eighth-space and finite-length-space contact problems 弹性四分之一空间、八分之一空间和有限长度空间接触问题的新数值解决方案

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-22 DOI: 10.1016/j.ijsolstr.2024.113031

Amakoe Komlanvi Ahyee , Daniel Nelias , Thibaut Chaise , Arnaud Duval

{"title":"New numerical resolution of the elastic quarter-space, eighth-space and finite-length-space contact problems","authors":"Amakoe Komlanvi Ahyee , Daniel Nelias , Thibaut Chaise , Arnaud Duval","doi":"10.1016/j.ijsolstr.2024.113031","DOIUrl":"10.1016/j.ijsolstr.2024.113031","url":null,"abstract":"<div><p>In this paper, a new algorithm to solve the elastic quarter-space, the eighth-space and the finite-length-space contact problems is proposed. This corresponds to an extension of the Hertz theory. The theoretical foundations of such a problem are limited, due to the presence of displacements at the free edges- or stresses at the virtual edges — resulting to complex boundary conditions. The new approach presented here is 3D and based on Guilbault’s ingenious fast correction method. In this approach, the edge effects are taken into account by introducing two corrective factors <span><math><msub><mrow><mi>ψ</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span>, <span><math><msub><mrow><mi>ψ</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> respectively on the <span><math><mrow><mo>(</mo><mi>O</mi><mi>x</mi><mo>)</mo></mrow></math></span> and <span><math><mrow><mo>(</mo><mi>O</mi><mi>z</mi><mo>)</mo></mrow></math></span> axes to replace the mirror pressure iterative process of Hetenyi. The exact numerical values of these two correction factors are derived analytically. The results show that the free edge can substantially increase locally the contact pressure and therefore the stresses and displacement fields if close to the contact area. So the pressure field and the contact zone present an asymmetry which is more pronounced as the free edge is getting closer. This study is carried out on spaces with one, two and four free edges which will be respectively called: quarter-space, eighth-space and finite-length-space. A validation is performed using a Finite Element Method (FEM) analysis. A parametric study is also performed to exhibit the differences with the Hertz solution, including in the situation where one expects the truncation of the contact area when the free edge is virtually located within the Hertz contact area.</p></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"304 ","pages":"Article 113031"},"PeriodicalIF":3.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142050177","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

Theoretical and numerical analysis on buckling instability in a thin film sandwiched between two finite-thickness substrates under in-plane compression 平面压缩条件下夹在两个有限厚度基底之间的薄膜屈曲不稳定性的理论和数值分析

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-22 DOI: 10.1016/j.ijsolstr.2024.113037

Xuebo Yuan , Peizhi Zhao , Qiuqiu Fan , Youshan Wang , Xiangyu Li

{"title":"Theoretical and numerical analysis on buckling instability in a thin film sandwiched between two finite-thickness substrates under in-plane compression","authors":"Xuebo Yuan , Peizhi Zhao , Qiuqiu Fan , Youshan Wang , Xiangyu Li","doi":"10.1016/j.ijsolstr.2024.113037","DOIUrl":"10.1016/j.ijsolstr.2024.113037","url":null,"abstract":"<div><p>Capturing the buckling instability mechanics of multi-layered film/substrate structures is essential for providing theoretical guidelines for designing flexible electronics (e.g., stretchable interconnects and strain-limiting structures) and understanding the morphogenesis in biology and geology. Previous buckling models of tri-layer substrate/film/substrate structures usually assumed infinite substrate thickness and incomplete forms of interfacial shear stress, failing to distinguish between local wrinkling and global buckling. In this work, we extend our previous model (<span><span>Yuan et al., 2023</span></span>) by accounting for both finite substrate thickness and a complete form of interfacial shear stress, without assuming uniform membrane strain in the film, to study the buckling instability of tri-layer structures. The local wrinkling versus global buckling is distinguished through energy analysis, yielding phase diagrams for a wide range of geometric parameters and material properties. The effects of finite substrate thickness and moduli on the critical compressive strain and wavelength for the onset of local wrinkling are thoroughly investigated. The high accuracy of current model is demonstrated by the excellent agreement between analytical predictions and finite element analysis. This study provides new insights into the stability analysis of substrate/film/substrate systems, and will aid in the design of flexible electronics.</p></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"304 ","pages":"Article 113037"},"PeriodicalIF":3.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142075894","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

On the dynamic shear failure of Ti-6Al-4V in different test specimen geometries 关于不同试样几何形状下 Ti-6Al-4V 的动态剪切破坏

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-22 DOI: 10.1016/j.ijsolstr.2024.113036

Yutian Du , Zejian Xu , Caifang Qin , Mengyu Su , P.J. Tan , Fenglei Huang

{"title":"On the dynamic shear failure of Ti-6Al-4V in different test specimen geometries","authors":"Yutian Du , Zejian Xu , Caifang Qin , Mengyu Su , P.J. Tan , Fenglei Huang","doi":"10.1016/j.ijsolstr.2024.113036","DOIUrl":"10.1016/j.ijsolstr.2024.113036","url":null,"abstract":"<div><p>In this paper, the dynamic shear response and failure of Ti-6Al-4V using four different test specimen geometries, viz. Hat-Shaped Specimen (HSS), Flat Hat-Shaped Specimen (FHSS), Chip Hat-Shaped Specimen (CHSS) and Double Shear Specimen (DSS), are critically examined and compared. Through a combination of experiments (using the standard Split-Hopkinson Pressure Bar system), finite-element simulations and metallographic examinations of their fracture morphology, the dynamic shear characteristics (strain hardening, strain rate strengthening effect and failure strain) of Ti-6Al-4V obtained using the different specimen geometries are critically examined, compared and analyzed. It will be shown that differences in the stress/strain uniformity, the plastic deformation zone, and the stress state induced by the different specimen geometries lead to discrepancies in the measured shear response and failure that were observed. The shear stress–strain curve obtained using the DSS will be shown to be more precise than the other specimen geometries.</p></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"304 ","pages":"Article 113036"},"PeriodicalIF":3.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142050174","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

Dynamic multifield continualization of multilayered lattice-like metamaterials 多层晶格状超材料的动态多场连续化

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-21 DOI: 10.1016/j.ijsolstr.2024.113015

Francesca Fantoni , Andrea Bacigalupo , Luigi Gambarotta

{"title":"Dynamic multifield continualization of multilayered lattice-like metamaterials","authors":"Francesca Fantoni , Andrea Bacigalupo , Luigi Gambarotta","doi":"10.1016/j.ijsolstr.2024.113015","DOIUrl":"10.1016/j.ijsolstr.2024.113015","url":null,"abstract":"<div><p>This work focuses on dynamic continualization of multifield multilayered metamaterials in order to obtain energetically-consistent models able to provide an accurate description of the dispersive behavior of the corresponding discrete system. Continuum models, characterized by constitutive and inertial non-localities, have been identified through a recently proposed enhanced continualization scheme. They are identified by governing equations both of the integro-differential and higher-order gradient-type, whose regularization kernel or pseudo-differential functions accounting for shift operators are formally expanded in Taylor series. The adopted regularization kernel exhibits polar singularities at the edge of the first Brillouin zone, thus assuring the convergence of the frequency spectrum to the one of the Lagrangian system in the entire wave vector domain. The validity of the proposed approach is assessed through the investigation of multilayered discrete lattices with an antitetrachiral topology, where local resonators act as rigid links among the layers. The convergence of dispersion curves of the continuum model to the ones of the Lagrangian model is proved in the whole first Brillouin zone as the adopted continualization order increases, both considering the propagation and the spatial attenuation of Bloch waves inside the metamaterial. A low frequency continualization is also provided, leading to the identification of a first-order medium.</p></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"304 ","pages":"Article 113015"},"PeriodicalIF":3.4,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0020768324003743/pdfft?md5=597212dca5430bdb6b9620d82e760d3f&pid=1-s2.0-S0020768324003743-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142041162","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

Corrigendum to “A generalized strain model for nonlinear residually stressed magneto-electrically coupled viscoelastic solids” [Int. J. Solids Struct. 289 (2024) 112659] 对 "非线性残余应力磁电耦合粘弹性固体的广义应变模型 "的更正 [Int. J. Solids Struct.

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-21 DOI: 10.1016/j.ijsolstr.2024.112772

M.H.B.M. Shariff , R. Bustamante , J. Merodio

引用次数: 0

Modeling of visco-electro-elastic responses of PZT-based functionally graded beam benders 基于 PZT 的功能分级梁弯曲机的粘弹响应建模

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-20 DOI: 10.1016/j.ijsolstr.2024.113034

Chien-hong Lin, An-Po Chou

引用次数: 0

Geometric symmetry and mechanical behavior of Topologically Interlocked Material systems from skewed building blocks 来自倾斜构件的拓扑互锁材料系统的几何对称性和力学行为

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-20 DOI: 10.1016/j.ijsolstr.2024.113033

Dong Young Kim, Thomas Siegmund

{"title":"Geometric symmetry and mechanical behavior of Topologically Interlocked Material systems from skewed building blocks","authors":"Dong Young Kim, Thomas Siegmund","doi":"10.1016/j.ijsolstr.2024.113033","DOIUrl":"10.1016/j.ijsolstr.2024.113033","url":null,"abstract":"<div><p>Architectured materials are engineered materials with specific geometries and arrangements to exhibit desired mechanical properties. One class of architectured material is the Topologically interlocked material (TIM) system. In TIM systems, a plurality of convex particles is assembled under specific geometric constraints such that a load-carrying structure is obtained without the need for an adhesive bond between building blocks. Past investigations have considered TIM systems with building blocks and assemblies with a high degree of symmetry. Here the geometric constraints commonly imposed on the geometry of the system are relaxed. Two new types of skewed building blocks are introduced: one with only a rotational symmetry and no mirror symmetry, and one without rotational or mirror symmetry. These blocks are used to build even and odd-numbered assemblies and to create TIM systems with both mirror and rotational symmetry, rotational symmetry only, and no symmetry. A vector field representing the material architecture is introduced and demonstrated to connect architecture and mechanical behavior. It is demonstrated that load transfer patterns in the TIM system closely match the geometric symmetry. This allows for the demonstration of achiral and chiral mechanical behavior as represented by the presence of reaction moments for the centrally loaded square TIM assembly. The chirality of the building blocks manifests itself in the mechanical behavior of the TIM system only once the deflection of the system opens the contacts between building blocks such that building blocks accommodate deformation. Chiral building blocks diffuse the load from the central load path dominant in the TIM systems built from achiral blocks. This construction concept allows for simultaneous improvements in mechanical properties (strength and stiffness) solely from geometry.</p></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"304 ","pages":"Article 113033"},"PeriodicalIF":3.4,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142041251","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

An anisotropic full-network model with damage surface for the Mullins effect in filled rubbers 带损伤面的各向异性全网络模型：填充橡胶中的穆林斯效应

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-19 DOI: 10.1016/j.ijsolstr.2024.113030

Gordon Kumar, Laurence Brassart

{"title":"An anisotropic full-network model with damage surface for the Mullins effect in filled rubbers","authors":"Gordon Kumar, Laurence Brassart","doi":"10.1016/j.ijsolstr.2024.113030","DOIUrl":"10.1016/j.ijsolstr.2024.113030","url":null,"abstract":"<div><p>The Mullins effect is a highly anisotropic damage phenomenon exhibited by filled rubbers among other soft materials. When filled rubbers are subjected to uniaxial tension, their apparent stiffness drops in the direction of stretching but is essentially unaltered in the transverse directions. However, micromechanical full-network models where Mullins softening is described at the level of individual chains often predict that uniaxial deformations induce transverse softening in addition to softening in the stretching direction. Moreover, these approaches typically require the storage of damage state variables for each chain, which is computationally expensive. Taking an alternative approach, we present a full-network model for the Mullins effect where the damage state is described by a single macroscopic damage tensor from which the damage state in each direction can be calculated. The evolution of damage is specified through damage surfaces and damage flow rules, which depend on the directions of principal stretches. The model is shown to reproduce experimental data for filled rubbers sequentially subjected to uniaxial tension in different directions. The model is also implemented in the finite element software ABAQUS as a user subroutine UMAT to illustrate the suitability of the model to simulate non-homogeneous deformation states.</p></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"304 ","pages":"Article 113030"},"PeriodicalIF":3.4,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0020768324003895/pdfft?md5=4f8c59b221fa3ccaf3a269f42217e487&pid=1-s2.0-S0020768324003895-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142012465","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

Influence of elasto-plastic behavior of thin films on circular buckling structures 薄膜弹塑性行为对圆形屈曲结构的影响

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-08-17 DOI: 10.1016/j.ijsolstr.2024.113032

K. Meng , G. Parry , M.A. Hurier , C. Tromas , C. Coupeau

引用次数: 0