International Journal of Mechanical Sciences最新文献_第3页

Multiscale strength-ductility synergy of double-sided underwater friction stir processed duplex stainless steel 双面水下搅拌摩擦加工双相不锈钢的多尺度强度-延性协同效应

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-28 DOI: 10.1016/j.ijmecsci.2025.110898

Renhao Wu , Peihao Geng , Fujun Cao , Zaigham Saeed Toor , Shi Woo Lee , Yifu Shen , Shuhui Li , Hyoung Seop Kim

{"title":"Multiscale strength-ductility synergy of double-sided underwater friction stir processed duplex stainless steel","authors":"Renhao Wu , Peihao Geng , Fujun Cao , Zaigham Saeed Toor , Shi Woo Lee , Yifu Shen , Shuhui Li , Hyoung Seop Kim","doi":"10.1016/j.ijmecsci.2025.110898","DOIUrl":"10.1016/j.ijmecsci.2025.110898","url":null,"abstract":"<div><div>Conventional thermomechanical processing often disrupts the critical microstructure balance of metallic materials, leading to mechanical deterioration despite grain refinement, presenting challenges in manufacturing, equipment, and application. This study introduces a novel asynchronous double-sided underwater friction stir processing (DUFSP) technique which achieves simultaneous strength-ductility enhancement (yield strength of 885 MPa and uniform elongation of 28.9%) in duplex stainless steel. Coupled discontinuous and continuous dynamic recrystallizations in α-ferrite and γ-austenite (∼1:1 ratio) grains are crucial for grain refinement and stable dual-phase ratio for obtaining bimodal heterostructure. Through integrated experimental characterizations and multiscale simulations, including the Coupled Eulerian and Lagrangian method and non-local crystal plasticity modeling, thermo-mechanical behavior, microstructural evolution, and multiscale deformation mechanisms were thoroughly analyzed, clarifying the linkage of process-microstructure-mechanical property of DUFSPed duplex stainless steel. This work demonstrates the effectiveness of DUFSP strategy for producing high-performance metals, with potential applications in industries, such as automotive, construction, drilling platform, and petrochemicals.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110898"},"PeriodicalIF":9.4,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Stability and vibrations of a flexible pipe under stochastic parametric excitation 随机参数激励下挠性管道的稳定性与振动

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-27 DOI: 10.1016/j.ijmecsci.2025.110895

Wude Xie , Zhu Li , Lu Wang , Zhaoyang Jiang , Zhenlin Liang

{"title":"Stability and vibrations of a flexible pipe under stochastic parametric excitation","authors":"Wude Xie , Zhu Li , Lu Wang , Zhaoyang Jiang , Zhenlin Liang","doi":"10.1016/j.ijmecsci.2025.110895","DOIUrl":"10.1016/j.ijmecsci.2025.110895","url":null,"abstract":"<div><div>Flexible pipes are widely used in engineering applications to transport gas-liquid two-phase flows, such as natural gas and oil. The natural separation, deformation, and mixing of these two fluid phases (gas and liquid) can cause spatiotemporal stochastic variations in total fluid density. In this paper, a mathematical model based on the Gaussian distribution is employed to simulate the stochastic fluctuations in the fluid density of gas-liquid two-phase flow. Subsequently, the nonlinear coupled transversal and axial vibrations of a flexible pipe conveying gas-liquid two-phase flow are developed. The pipe vibration equations are solved using the Galerkin method combined with the Runge-Kutta method. After validating the proposed dynamic model, a comprehensive analysis of the stability and vibration characteristics of the pipe induced by the stochastic fluid density of gas-liquid two-phase flow is conducted. The results indicate that the parametric stability and instability of the pipe can be determined using the Floquet theory. If any frequency component of the stochastic fluid density has a state transition matrix eigenvalue greater than one, the pipe system becomes unstable. In the subcritical flow regime, the pipe vibrations caused by parametric resonances of gas-liquid two-phase flow exhibit chaotic behavior, while in the supercritical regime, the vibrations also display chaotic characteristics due to pipe buckling instability.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110895"},"PeriodicalIF":9.4,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

3-D thermodynamic analysis of helical fiber-matrix interfacial wettability 螺旋纤维-基质界面润湿性的三维热力学分析

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-27 DOI: 10.1016/j.ijmecsci.2025.110896

Fuzheng Guo , Wenlong Hu , Yu Cang , Fu-Zhen Xuan , Wenyan Liang , Fangxin Wang , Bin Yang

{"title":"3-D thermodynamic analysis of helical fiber-matrix interfacial wettability","authors":"Fuzheng Guo , Wenlong Hu , Yu Cang , Fu-Zhen Xuan , Wenyan Liang , Fangxin Wang , Bin Yang","doi":"10.1016/j.ijmecsci.2025.110896","DOIUrl":"10.1016/j.ijmecsci.2025.110896","url":null,"abstract":"<div><div>In recent years, the advancement of material design has highlighted the importance of integrating bionic principles into the design process. Helical bionic fibers have garnered considerable attention in advanced materials. Unlike conventional fibers, 3-D helical fibers exhibit curvature-driven spatial topologies that enhance surface tension interactions with polymer matrices, thereby resulting in distinct fiber-matrix interfacial wetting. However, the absence of quantitative thermodynamic models has limited the ability to predict such interfacial phenomena. In this study, a novel 3-D thermodynamic model based on Gibbs free energy is proposed for the first time to assess the fiber-matrix wettability in pre-cured composites. This model explicitly captures the free-energy landscape associated with spatial topology, and uniquely elucidates previously unexplored mechanisms of wetting transitions between Cassie-Baxter and Wenzel states. By adjusting the spatial topology of individual fibers, the effects of the morphological evolution on the helical fiber-matrix interfacial wettability were systematically investigated, enabling the prediction of optimal helical configurations. The number of individual fibers has a dual effect on interfacial wetting, revealing the interplay between the helical fiber design and matrix wetting behaviour. These findings reveal a new mechanism by which fiber curvature and arrangement govern capillary-driven wetting and interfacial stability. This study integrates spatial topology with thermodynamic principles, offering insights into helical fiber design for improved matrix wettability. The proposed model not only enhances the understanding of fiber-matrix interactions, but also establishes a new theoretical framework to fabricate fiber-reinforced polymer composites (FRPs) with tailored interfacial properties.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110896"},"PeriodicalIF":9.4,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

DIC-informed microscale elastoplastic flow states in machining 机械加工中的微尺度弹塑性流态

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-27 DOI: 10.1016/j.ijmecsci.2025.110892

Cheng Hu , Jun-Xian Dong , Ke-Jia Zhuang

{"title":"DIC-informed microscale elastoplastic flow states in machining","authors":"Cheng Hu , Jun-Xian Dong , Ke-Jia Zhuang","doi":"10.1016/j.ijmecsci.2025.110892","DOIUrl":"10.1016/j.ijmecsci.2025.110892","url":null,"abstract":"<div><div>Characterizing material flow states is essential for understanding metal cutting mechanisms and improving machine tool performance, particularly near the tool cutting edge (TCE). Accurately modeling these flow states is challenging due to the rapid and severe deformations in this region. To address this, a hybrid approach combining experimental observation and theoretical modeling was developed for machining of Inconel 718 alloy. An in-situ imaging system with high-speed filming capability was set up on a CNC lathe. The captured images were processed using a digital image correlation (DIC) algorithm based on the Gauss-Newton nonlinear iterative method to obtain incremental displacement and strain fields. DIC analysis revealed the evolution of the shearing zone from concave-convex to near-linear, the transition of the stagnation point/zone ahead of the TCE, the dynamic sticking-sliding contact at the chip-tool interface, and the ploughing-induced stretching-like springback at the tool flank face. These observations supported the development of an extended slip-line field model for cutting with rounded TCE, incorporating microscale elastoplastic material flow states into forces prediction. Orthogonal cutting tests with various uncut chip thickness (UCT) and cutting velocities validated the hybrid model. Compared with a previous one, the proposed approach reduced the average prediction error of forces from 21.6% to 14.5% in the cutting direction and from 61% to 5.1% in the thrust direction. This study provides a comprehensive characterization of microscale material flow states and significant process signatures, offering guidance for machine tool design and manufacturing process optimization.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110892"},"PeriodicalIF":9.4,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Spatiotemporal damage evolution in thermo-mechanically coupled rock using acoustic emission 基于声发射的热-力耦合岩石损伤时空演化研究

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-27 DOI: 10.1016/j.ijmecsci.2025.110893

Shen Zhang , Longjun Dong , Longbin Yang , Zixin Huang , Daoyuan Sun , Jianqing Xiao

{"title":"Spatiotemporal damage evolution in thermo-mechanically coupled rock using acoustic emission","authors":"Shen Zhang , Longjun Dong , Longbin Yang , Zixin Huang , Daoyuan Sun , Jianqing Xiao","doi":"10.1016/j.ijmecsci.2025.110893","DOIUrl":"10.1016/j.ijmecsci.2025.110893","url":null,"abstract":"<div><div>Deep geological engineering presents substantial challenges in understanding the mechanical mechanisms driving anisotropic damage evolution in reservoir rocks under thermo-mechanical coupling, which directly impact engineering safety and economic efficiency. This study investigates the mechanical behavior and damage evolution of granite under real-time thermo-mechanical coupling at 120 °C during uniaxial compression, using active-passive acoustic emission (AE) tomography to examine the spatiotemporal damage mechanisms. The results indicate that thermal expansion causes the closure of primary cracks at temperatures up to 67 °C in localized regions, thereby enhancing wave velocity, while simultaneously inducing thermal cracking in other areas, which results in material weakening. The thermal crack network prolongs the stress redistribution phase and facilitates the formation of three-dimensional fracture surfaces, thereby significantly reducing the risk of rock failure. To address the limited sensitivity of traditional AE parameters to high-temperature damage, this study introduces the Ring-down to Energy Ratio (<em>RER</em>). The <em>RER</em> reveals distinct precursory failure signals, including a continuous decrease in the high-temperature specimen and abrupt increases in the room temperature specimen, thereby demonstrating its potential as a reliable indicator for thermal-mechanical rock failure. Spatiotemporal velocity field analysis further reveals that thermal crack propagation preferentially occurs in areas of low porosity. It also identifies a three-stage damage evolution pattern: dominant growth rate during crack closure, a significant increase in the attenuation rate during the elastic deformation stage, and secondary velocity growth during crack propagation. These findings elucidate the damage mechanism of deep rock masses under thermo-mechanical coupling and provide a dynamic monitoring approach.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110893"},"PeriodicalIF":9.4,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Analytical mechanical model of grinding-induced warpage in open cylindrical thin-shell mirrors 开口圆柱薄壳镜磨削翘曲的解析力学模型

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-27 DOI: 10.1016/j.ijmecsci.2025.110894

Honggang Li , Tiancai Tan , Dongqi An , Xiaoguang Guo , Renke Kang , Shang Gao

{"title":"Analytical mechanical model of grinding-induced warpage in open cylindrical thin-shell mirrors","authors":"Honggang Li , Tiancai Tan , Dongqi An , Xiaoguang Guo , Renke Kang , Shang Gao","doi":"10.1016/j.ijmecsci.2025.110894","DOIUrl":"10.1016/j.ijmecsci.2025.110894","url":null,"abstract":"<div><div>Thin-shell silicon mirrors are critical components in lightweight X-ray optical systems. However, grinding induces surface compressive stresses and subsurface damage layers that can lead to warpage deformation in these open cylindrical thin-shell structures. The curvature effect of thin-shells results in a unique warping mechanism that has remained unexplored. This study developed a novel analytical mechanical model to predict the warpage behavior, identifying the stress-released effect during the fixture removal as the primary driver. Using Donnell–Mushtari shell theory, the study derived the high-order partial differential equations (PDEs) for governing warpage deflection under bending moments acting on the free boundary. A double finite Fourier integral transform was applied to solve these PDEs and derive exact analytical solutions. The model links warpage directly to shell geometry, material properties, and damage parameters. Ultra-precision grinding experiments on silicon thin-shells with different thicknesses validated the model, showing less than 6% error between predicted and measured deflections. Notably, increasing shell thickness can reduce warpage sensitivity. Grinding parameters that promote ductile removal, such as fine-grit resin-bonded wheels, higher wheel speed, lower feeding rate, and smaller grinding depth, produce shallower subsurface damage layers and help minimize warpage. This theoretical innovation provides an efficient computational approach for warpage prediction, thereby facilitating the high-precision manufacturing of thin-shell structures.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110894"},"PeriodicalIF":9.4,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 virtual element framework for inelastic contact involving multiple bodies 多体非弹性接触的虚元框架

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-27 DOI: 10.1016/j.ijmecsci.2025.110886

Guangtao Xu , Chuanqi Liu , Yujie Wei

{"title":"A virtual element framework for inelastic contact involving multiple bodies","authors":"Guangtao Xu , Chuanqi Liu , Yujie Wei","doi":"10.1016/j.ijmecsci.2025.110886","DOIUrl":"10.1016/j.ijmecsci.2025.110886","url":null,"abstract":"<div><div>The Virtual Element Method (VEM) is a recently developed technique well-suited for arbitrary cell shapes, converting non-conformal meshes into node-to-node constraint enforcement through adaptive node insertion. Despite this advantage, computational contact mechanics including VEM approaches still presents significant challenges, particularly when dealing with arbitrary geometries, finite deformations, material non-linearity, and friction. In this study, we develop a VEM framework aided by the signed distance function (SDF), which provides an efficient geometric representation for gap measurements and facilitates adaptive node insertion. Leveraging automatic differentiation, we further extend the method to handle contacts involving elasto-plastic finite deformation within an energy-based framework. The contact contribution including both normal and frictional effects, is efficiently computed using a finite difference approximation of the stiffness matrix. Through comprehensive numerical benchmarks including Hertzian contact problems, we validate the accuracy of the proposed approach under small and finite deformations, with and without plasticity. Additionally, we demonstrate the method’s effectiveness in multi-body contact scenarios and a deep drawing process simulation. The results indicate that the SDF-based VEM framework is a reliable and versatile tool for solving challenging contact problems.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110886"},"PeriodicalIF":9.4,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Shear behavior of auxetic and non-auxetic cellular metamaterial 生长型和非生长型细胞超材料的剪切特性

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-26 DOI: 10.1016/j.ijmecsci.2025.110891

Nian Ci Du, Yi Zhang, Jun Wen Shi, Tao Xue, Wei Zhong Jiang, Yi Chao Qu, Xin Ren

{"title":"Shear behavior of auxetic and non-auxetic cellular metamaterial","authors":"Nian Ci Du, Yi Zhang, Jun Wen Shi, Tao Xue, Wei Zhong Jiang, Yi Chao Qu, Xin Ren","doi":"10.1016/j.ijmecsci.2025.110891","DOIUrl":"10.1016/j.ijmecsci.2025.110891","url":null,"abstract":"<div><div>Classical cellular auxetic materials typically exceed the linear elastic small-deformation regime, leaving the superiority of their shear performance unclear. Therefore, it is essential to investigate the shear performance of classical auxetic structures and compare their shear resistance with non-auxetic structures. In this work, a shear deformation performance test was conducted on three classical auxetics (reentrant structure (<em>Re</em>), Star lattice (St), and chiral lattice (Ch)) and two non-auxetic counterparts (Honeycomb structure (Ho), near-zero Poisson’s ratio semi-reentrant structure (Se)) experimentally and numerically. The optimal mesh size was determined via grid convergence analysis. Then, the effective shear modulus of the structures was measured via the modular picture-frame apparatus. Deformation mode indicate that shear force magnitude depends on rib arrangement within the unit cell. Parametric analyses were conducted on the reentrant structure and chiral lattice by varying rib thickness, unit cell size, and number of unit cells. The results show that auxetic structures exhibit significant differences in shear modulus compared to two non-auxetic structure, with far lower shear stress during deformation. The rib thickness of the unit cell had the greatest impact on shear stress. This study highlights that the advantage of auxetic structures lies not in enhanced shear modulus but in their exceptional deformation capacity. Leveraging this property, auxetic structures offer innovative potential applications in civil engineering and aerospace engineering, such as architectural membranes and aircraft wing skins.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110891"},"PeriodicalIF":9.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Form-finding and stability analysis of tensegrity with interconnected rigid bodies 互联刚体张拉整体的寻形与稳定性分析

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-26 DOI: 10.1016/j.ijmecsci.2025.110890

Yu Xue , Guojun Sun , Yafeng Wang , Ziheng Li , Jinzhi Wu , Yaozhi Luo

{"title":"Form-finding and stability analysis of tensegrity with interconnected rigid bodies","authors":"Yu Xue , Guojun Sun , Yafeng Wang , Ziheng Li , Jinzhi Wu , Yaozhi Luo","doi":"10.1016/j.ijmecsci.2025.110890","DOIUrl":"10.1016/j.ijmecsci.2025.110890","url":null,"abstract":"<div><div>Tensegrity structures with arbitrarily shaped rigid bodies have found broad applications in various fields. Current studies on this topic are typically limited to the cases where the rigid bodies are isolated or connected by simple pin-jointed nodes, which may restrict the design flexibility and applications of these structures. This paper extends the concept of tensegrity to more generalized cases, incorporating interconnected rigid bodies with various connection modes. A unified energy-based framework is proposed for form-finding and stability analysis of such structures. The potential energy of various element types and constraint equations of different connection modes are derived. Equilibrium equations for form-finding and static analysis are established using the Lagrange principle, and the Levenberg-Marquardt algorithm is adopted to solve these equations. The constraint space of the generalized degrees of freedom is determined through the singular value decomposition (SVD) of the Jacobian matrix of the constraint equations. Structural stability is assessed through the positive definiteness of the Hessian matrix of the potential energy within the constraint DOF space. The proposed method is validated by typical numerical examples, showing potential applicability in improving the structural stability of deployable mechanisms and designing structures with tunable stiffness.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110890"},"PeriodicalIF":9.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Data-driven Thermo-mechanical Interfaces: Thermal Mismatch Induced Interface Debonding 数据驱动的热机械界面：热失配引起的界面剥离

IF 9.4 1区工程技术

International Journal of Mechanical Sciences Pub Date : 2025-09-26 DOI: 10.1016/j.ijmecsci.2025.110881

Lizhenhui Zhou , Yaokun Li , Yiqi Mao , Shujuan Hou

{"title":"Data-driven Thermo-mechanical Interfaces: Thermal Mismatch Induced Interface Debonding","authors":"Lizhenhui Zhou , Yaokun Li , Yiqi Mao , Shujuan Hou","doi":"10.1016/j.ijmecsci.2025.110881","DOIUrl":"10.1016/j.ijmecsci.2025.110881","url":null,"abstract":"<div><div>In this work, a model-free data-driven framework is proposed to simulate interface debonding induced by the thermal mismatch. The material phase space is expanded and a new thermo-mechanical distance norm is formulated, incorporating three canonical conjugate pairs: traction–separation, temperature–internal energy, and temperature gradient–heat flux. The thermo-mechanical coupling interactions of interface are naturally encoded by the given material database and the complex constitutive relations are not necessary herein. The proposed data-driven is enriched by an internal variable-based parameterization to construct a time-evolving database for enforcing monotonic increase of interface damage evolution. Several numerical examples are provided to evaluate the accuracy and efficiency of the proposed approach. First, the thermo-mechanical data-driven model is benchmarked against classical finite element results, with convergence behavior analyzed in detail. Second, parametric studies are conducted on key interfacial properties, including superficial heat capacity and interfacial thermal conductivity, demonstrating the capability of the developed data-driven method to capture essential features of heat transfer across interfaces. Finally, the proposed framework is applied to simulate interface debonding driven by thermal mismatch in different cases, successfully capturing the coupled evolution of heat conduction and interfacial degradation. The results confirm that the data-driven formulation provides a novel numerical tool to describe the interplay between thermal fields and damage processes at material of interfaces.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"307 ","pages":"Article 110881"},"PeriodicalIF":9.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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