International Journal of Solids and Structures最新文献_第6页

Peeling behavior of a discontinuously adhered film/substrate system within finite deflection

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-24 DOI: 10.1016/j.ijsolstr.2024.113207

Y.S. Wang, K.F. Wang, B.L. Wang

{"title":"Peeling behavior of a discontinuously adhered film/substrate system within finite deflection","authors":"Y.S. Wang, K.F. Wang, B.L. Wang","doi":"10.1016/j.ijsolstr.2024.113207","DOIUrl":"10.1016/j.ijsolstr.2024.113207","url":null,"abstract":"<div><div>In various fields such as biological adhesion, multi-chip semiconductors, ship hulls and hierarchical materials, adhesive layers often exhibit discontinuous characteristics. In this study, we develop a general model to explore the 90° peeling process of a film experiencing such discontinuous adhesion, employing the principle of minimum potential energy. The developed model is capable of handling arbitrary lengths of bonded and non-bonded segments and the large deformation of the film. In the process of film peeling under discontinuous adhesion, peeling force exhibits repetitive fluctuations. The peak signifies the initiation of the peeling front transitioning into the non-bonded segment, while the trough represents the delamination front advancing into the bonded segment. These fluctuations stem from the transfer and redistribution of bending energy in the film: energy release occurs as the peeling front enters the non-bonded segment, while re-accumulation takes place as it enters the bonded segment, resulting in increased peeling force. Additionally, we discuss the periodic discontinuous bonding, exploring different cases of bonding length proportions and period lengths. The conclusions drawn in this study are pertinent for accurately evaluating interface adhesion energy in multi-layered structures and comprehending the discontinuous adhesive interactions prevalent in nature.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"309 ","pages":"Article 113207"},"PeriodicalIF":3.4,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138142","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

Estimation of energy dissipation during dynamic shear band evolution

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-22 DOI: 10.1016/j.ijsolstr.2024.113202

Hao-Sen Chen, Wei Qi, Manxi Chen, Heng Yang, Shengxin Zhu, Qinglei Zeng

{"title":"Estimation of energy dissipation during dynamic shear band evolution","authors":"Hao-Sen Chen, Wei Qi, Manxi Chen, Heng Yang, Shengxin Zhu, Qinglei Zeng","doi":"10.1016/j.ijsolstr.2024.113202","DOIUrl":"10.1016/j.ijsolstr.2024.113202","url":null,"abstract":"<div><div>The adiabatic shear band (ASB) criterion is crucial for assessing the shear failure resistance of metals and alloys under dynamic loading. While the critical shear strain obtained from macroscopic stress–strain curves has been widely employed to predict <em>ASB nucleation</em>, it cannot describe the subsequent <em>ASB evolution</em> process, which occurs at extreme spatial (∼µm) and temporal (∼µs) scales. In this work, we introduce a generalized shear band toughness to characterize the post-localization energy dissipation within the band, which can be estimated from temperature fields captured by high-speed, high-resolution infrared thermal detectors. The generalized shear band toughness model accounts for contributions from both thermal softening and microstructure-related softening mechanisms in ASB evolution. We systematically characterize the shear band toughness across a range of materials, from conventional alloys to advanced high-entropy alloys. Finally, the shear band toughness is incorporated into a dual-stage, energy-based shear banding criterion, which proves crucial for accurately predicting the entire shear banding process, particularly in scenarios involving dynamic shear band propagation in large structures.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"309 ","pages":"Article 113202"},"PeriodicalIF":3.4,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138138","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

Corrigendum to “Peeling of periodically heterogeneous film from rigid substrate at arbitrary peeling angle” [Int. J. Solids Struct. 302 (2024) 112976]

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-19 DOI: 10.1016/j.ijsolstr.2024.113195

Chuang-Shi Shen , Huan-Fang Wang , Fei Yao , Jing-Liang Cui , Bo Zhou , Xi-Ning Zhao , Yong-Wang Zhang , Bo Li , Ze-Wei Li

引用次数: 0

Geometric effects on the crashworthiness of composite Kresling origami tubes

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-18 DOI: 10.1016/j.ijsolstr.2024.113199

James O’Neil , Marco Salviato , Eunho Kim , Jinkyu Yang

引用次数: 0

A novel plasticity model for characterizing Lode parameter dependence on the differential yielding and hardening behaviors of Ti6Al4V alloy over a wide range of stress states

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-16 DOI: 10.1016/j.ijsolstr.2024.113201

Tengfei Ren , Cunxian Wang , Yongshuai Wang , Han Zhao , Tao Suo

{"title":"A novel plasticity model for characterizing Lode parameter dependence on the differential yielding and hardening behaviors of Ti6Al4V alloy over a wide range of stress states","authors":"Tengfei Ren , Cunxian Wang , Yongshuai Wang , Han Zhao , Tao Suo","doi":"10.1016/j.ijsolstr.2024.113201","DOIUrl":"10.1016/j.ijsolstr.2024.113201","url":null,"abstract":"<div><div>This study investigates and models the effect of Lode angle on the yielding and hardening behaviors of a forged Ti6Al4V alloy across a wide range of stress states. The as-received material was firstly demonstrated to exhibit no orientation effect. Subsequently, a total of 14 specimen types, including uni-axial tension, compression, simple shear, three notched round bars, three grooved plates and five newly designed tension-shear coupling specimens, were tested under the equivalent strain rate of 0.001 s<sup>−1</sup>. Utilizing an iterative inverse method, equivalent stress–strain curves of the material subject to 14 dissimilar stress states were obtained. The distributions of stress state characterized by the stress triaxiality and Lode angle on the specimens were analyzed through simulations, confirming the validity of 11 out of the 14 plastic curves. Results indicate negligible stress triaxiality dependence but significant Lode angle dependence on the plasticity of Ti6Al4V alloy. Such results led to the proposal of a novel plasticity model, which effectively incorporates the Lode angle effect on both yielding and hardening behaviors of materials. Further validation through numerical simulations conducted in ABAQUS/Explicit demonstrated the model’s applicability and accuracy in predicting material plasticity under complex loading conditions. These findings offer valuable insights into the mechanical behavior of Ti6Al4V alloy and have implications for design and performance assessment in practical engineering applications.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"309 ","pages":"Article 113201"},"PeriodicalIF":3.4,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137601","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 self-healing model for cementitious materials

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-14 DOI: 10.1016/j.ijsolstr.2024.113196

Sina Sayadi, Iulia Mihai, Anthony Jefferson

{"title":"Rate dependent self-healing model for cementitious materials","authors":"Sina Sayadi, Iulia Mihai, Anthony Jefferson","doi":"10.1016/j.ijsolstr.2024.113196","DOIUrl":"10.1016/j.ijsolstr.2024.113196","url":null,"abstract":"<div><div>A new micromechanics-based constitutive model for self-healing cementitious materials is proposed. The model is aimed at self-healing materials with distributed healing mechanisms, such as materials with embedded microcapsules and enhanced autogenous healing capabilities. The model considers anisotropic microcracking and time-dependent healing. In contrast to many existing models for self-healing cementitious materials, the new approach imposes no limitations on the number or timing of microcracking or healing events that can be simulated. The formulation ensures that the simulation of microcracking and healing is always consistent with the second law of thermodynamics. The model is implemented in a three-dimensional nonlinear finite element code that allows structural elements formed from self-healing materials to be simulated. A series of single-point simulations illustrate the versatility of the model. The experiments considered with the model encompass a set of cylindrical specimens formed from concrete with embedded microcapsules containing sodium silicate, and a notched beam test series that examined the self-healing potential of concrete formed with a crystalline admixture. The validations show that the model can capture the characteristic mechanical behaviour of these structural elements with good engineering accuracy.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"309 ","pages":"Article 113196"},"PeriodicalIF":3.4,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137608","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

A time-discontinuous elasto-plasticity formalism to simulate instantaneous plastic flow bursts

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-10 DOI: 10.1016/j.ijsolstr.2024.113171

M. Lamari , P. Kerfriden , O.U. Salman , V. Yastrebov , K. Ammar , S. Forest

{"title":"A time-discontinuous elasto-plasticity formalism to simulate instantaneous plastic flow bursts","authors":"M. Lamari , P. Kerfriden , O.U. Salman , V. Yastrebov , K. Ammar , S. Forest","doi":"10.1016/j.ijsolstr.2024.113171","DOIUrl":"10.1016/j.ijsolstr.2024.113171","url":null,"abstract":"<div><div>Plastic flow is conventionally treated as continuous in finite element (FE) codes, whether in isotropic, anisotropic plasticity, or crystal plasticity. This approach, derived from continuum mechanics, contradicts the intermittent nature of plasticity at the elementary scale. Understanding crystal plasticity at micro-scale opens the door to new engineering applications, such as microscale machining. In this work, a new approach is proposed to account for the intermittence of plastic deformation while remaining within the framework of continuum mechanics. We introduce a material parameter, the plastic deformation threshold, denoted as <span><math><mrow><mi>Δ</mi><msub><mrow><mi>p</mi></mrow><mrow><mi>m</mi><mi>i</mi><mi>n</mi></mrow></msub></mrow></math></span>, corresponding to the plastic deformation carried by the minimal plastic deformation burst within the material. The incremental model is based on the traditional predictor–corrector algorithm to calculate the elastoplastic behavior of a material subjected to any external loading. The model is presented within the framework of small deformations for von Mises plasticity. To highlight the main features of the approach, the plastic strain increment is calculated using normality rule and consistency conditions, and is accepted only if it exceeds <span><math><mrow><mi>Δ</mi><msub><mrow><mi>p</mi></mrow><mrow><mi>m</mi><mi>i</mi><mi>n</mi></mrow></msub></mrow></math></span>. To achieve this, a time-discontinuous generalization of the Karush-Kuhn–Tucker (KKT) conditions is proposed. The simulations show that the introduction of the plastic threshold allows for the reproduction of the spatiotemporal intermittence of plastic flow, capturing the self-organization of plastic flow in complex loading scenarios within an FE model.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"309 ","pages":"Article 113171"},"PeriodicalIF":3.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137606","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 analytical model for the bending and reaction force of hygroscopic bilayers upon water adsorption

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-09 DOI: 10.1016/j.ijsolstr.2024.113191

Mohammadali Behboodi , Mehdi Eskandari-Ghadi , Wenjie Xia , Yida Zhang

{"title":"An analytical model for the bending and reaction force of hygroscopic bilayers upon water adsorption","authors":"Mohammadali Behboodi , Mehdi Eskandari-Ghadi , Wenjie Xia , Yida Zhang","doi":"10.1016/j.ijsolstr.2024.113191","DOIUrl":"10.1016/j.ijsolstr.2024.113191","url":null,"abstract":"<div><div>Hygroscopic bilayers replicating the morphing capability of plants upon hydration (e.g., pinecone scales, chiral seed pods) have gained much attention in robotics and material science research in the past decade. Due to variations in humidity, hygroscopic bilayers – comprising a passive substrate and an active porous coating – can convert the chemical potential difference of adsorbate species between the surrounding environment and the pore space to mechanical energy, resulting in development of curvature and forces. In this paper, we present a closed-form analytical model that considers the pore structure of the active layer for predicting the morphing of hygroscopic bilayers subjected to adsorption. For free-end cases, the curvature evolution as a function of relative humidity is predicted by combining a bilayer beam theory and a linear surface poroelasticity model for the active porous layer. For fixed-end scenarios, the reaction force generated by the bilayer is predicted using Castigliano’s second theorem with the same constitutive model. For validation, we consider two types of hydroscopic bilayers with microporous and mesoporous coatings, as tested by <span><span>Boudot et al. (2016)</span></span>. A new isotherm equation is introduced to capture the adsorption characteristics of mesoporous media at all humidity levels. The predicted curvature and reaction force curves compared well against the experimental data. Finally, the effects of substrate Young’s modulus and the coating’s thickness on the response of the bilayer are studied. The proposed model offers straightforward mechanistic description of hydroscopic bilayers, thereby aiding in the future optimization and design of these systems for engineering applications.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"309 ","pages":"Article 113191"},"PeriodicalIF":3.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137603","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

Bridging in co-cured composite joints

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-09 DOI: 10.1016/j.ijsolstr.2024.113194

Charline van Innis , Michal K. Budzik , Thomas Pardoen

{"title":"Bridging in co-cured composite joints","authors":"Charline van Innis , Michal K. Budzik , Thomas Pardoen","doi":"10.1016/j.ijsolstr.2024.113194","DOIUrl":"10.1016/j.ijsolstr.2024.113194","url":null,"abstract":"<div><div>Further deployment of advanced polymer-based composites in critical structures requires, among others, new progress in adhesive bonding solutions from processing to performance. Among others, the cost and time intensity of manufacturing can be mitigated through co-curing of composite elements using a thermoplastic film, typically a Polyetherimide (PEI) film. However, the use of PEI films in resin transfer moulding leads to low toughness (<500 J/m<sup>2</sup>). The objective of this work is to improve the toughness of co-cured composite joints by inserting UHMPE filaments between a PEI film and the composite panels in order to trigger crack bridging and a significant R-effect. The influence of the spacing and of the tensile strength of the filaments has been determined experimentally, resulting in an increase of the toughness by up to a factor 3. In addition, the influence of these parameters has been further investigated with a closed-form crack propagation model. Decreasing the spacing and increasing the strength of the filaments enhances the joint toughness. Increasing the tensile elongation of the filaments results in a less steep R-effect, requiring a longer crack propagation to attain of the maximum fracture toughness.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"309 ","pages":"Article 113194"},"PeriodicalIF":3.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138119","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

Symmetry breaking and dynamic characteristics of post-buckling in bilayer van der Waals structures

IF 3.4 3区工程技术

International Journal of Solids and Structures Pub Date : 2024-12-09 DOI: 10.1016/j.ijsolstr.2024.113190

Guangfei Zhu, Rumeng Liu, Lifeng Wang

{"title":"Symmetry breaking and dynamic characteristics of post-buckling in bilayer van der Waals structures","authors":"Guangfei Zhu, Rumeng Liu, Lifeng Wang","doi":"10.1016/j.ijsolstr.2024.113190","DOIUrl":"10.1016/j.ijsolstr.2024.113190","url":null,"abstract":"<div><div>The van der Waals (vdW) interaction plays a crucial role in the mechanical properties, including bending and buckling, of layered 2D materials, directly affecting their performance as flexible devices. This study systematically investigates the symmetry breaking and dynamic characteristics of post-buckling in bilayer vdW structures caused by the local atomic positions’ dependence of vdW interactions. Our observations reveal that the buckling configuration of bilayer molybdenum disulfide (MoS<sub>2</sub>) exhibits a significant dependence on the direction of applied load. When compressed along the zigzag direction, the post-buckling configuration is symmetric. In contrast, compression along the armchair direction results in a significant asymmetric post-buckling configuration. Additionally, the asymmetric buckling configuration strongly correlates with the length of the structure and the magnitude of compressive strain. Combining molecular dynamics simulations and a continuum-discrete model, it is found that this symmetry breaking in buckling results from anisotropic and non-uniform shear and sliding between atomic layers. Moreover, under biaxial compression, bilayer circular MoS<sub>2</sub> demonstrates post-buckling configurations and thermal vibration modes markedly distinct from monolayer MoS<sub>2</sub>. These configurations are closely associated with the initial stacking orders of bilayer MoS<sub>2</sub>. In particular, effective modulation of asymmetry is achieved by twisting the bilayer structure, offering insights into controlling buckling behavior. These findings provide novel perspectives for describing and addressing buckling issues in layered vdW structures and offer guidance for designing and optimizing vdW structure devices.</div></div>","PeriodicalId":14311,"journal":{"name":"International Journal of Solids and Structures","volume":"309 ","pages":"Article 113190"},"PeriodicalIF":3.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137604","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