Acta Mechanica Solida Sinica最新文献_第5页

Coupled Cross-flow and In-line Vibration Characteristics of Marine Catenary Composite Riser Subjected To Gas-Liquid Multiphase Internal Flow 气-液多相内流作用下海洋悬链线复合立管的耦合横流与直线振动特性

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-09 DOI: 10.1007/s10338-025-00660-2

Xueping Chang, Renqiang Xu, Congjia Qu, Yinghui Li

{"title":"Coupled Cross-flow and In-line Vibration Characteristics of Marine Catenary Composite Riser Subjected To Gas-Liquid Multiphase Internal Flow","authors":"Xueping Chang, Renqiang Xu, Congjia Qu, Yinghui Li","doi":"10.1007/s10338-025-00660-2","DOIUrl":"10.1007/s10338-025-00660-2","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper studies the coupled cross-flow and in-line vibration characteristics of marine catenary composite riser under the combined action of gas-liquid multiphase internal flow, external ocean currents and composite material anisotropy. Based on Hamilton’s variational principle, the coupled vibration control equations of composite marine catenary riser in cross-flow and in-line directions were established considering the combined action of gas-liquid multiphase internal flow, external ocean currents and composite material anisotropy. The van der Pol wake oscillator model was used to simulate the flow force of the ocean current in the cross-flow and in-line directions of the slender riser. Newmark-β and fourth-order Runge-Kutta methods were used to solve the coupled dynamics equation. The research results show that gas volume fraction and fiber orientation angle significantly suppress structural mode of vibration, while liquid flow rate exhibits mode of vibration excitation effects. Increasing fiber orientation angle reduces vibration displacement and enhances motion periodicity, whereas higher liquid velocities induce chaotic system behavior. Bending stress shows nonlinear sensitivity to low gas fractions and liquid velocity changes, exhibiting stress transitions. These findings provide critical insights for optimizing composite riser design and safety in deep-sea energy extraction, highlighting parameter-specific control strategies for vibration mitigation and stress management under complex multiphase flow conditions.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 8","pages":"1099 - 1121"},"PeriodicalIF":2.6,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782125","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 Brief Review of Models for Adhesive Contact at the Single-Asperity Level 单裂纹水平黏着接触模型综述

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-09 DOI: 10.1007/s10338-025-00690-w

Gan-Yun Huang, Jin-Shan He, Zhao-Yang Ma

引用次数: 0

An Explicit Solution in Matrix Formulation for a Bi-Material Half-Space and the Contact Analysis 双材料半空间矩阵形式的显式解及接触分析

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-07 DOI: 10.1007/s10338-025-00673-x

Yuanhao Chen, Fengyun Chen, Jianghong Yuan, Weiqiu Chen

引用次数: 0

A Critical Review on Sorption-Induced Deformation in Nanoporous Materials: Experiments, Theories and Simulations 纳米多孔材料吸附致变形研究综述：实验、理论与模拟

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-07 DOI: 10.1007/s10338-025-00684-8

Mingyang Chen, Pengwei Mou, Wenbo Li, Liao-Liang Ke

{"title":"A Critical Review on Sorption-Induced Deformation in Nanoporous Materials: Experiments, Theories and Simulations","authors":"Mingyang Chen, Pengwei Mou, Wenbo Li, Liao-Liang Ke","doi":"10.1007/s10338-025-00684-8","DOIUrl":"10.1007/s10338-025-00684-8","url":null,"abstract":"<div><p>Sorption-induced deformation is widely observed in nanoporous materials. However, the fundamental mechanisms that govern this behavior remain only partially elucidated, and a generally accepted predictive modeling framework is still lacking. In this review, we synthesize the current state of knowledge by examining experimental findings, theoretical formulations, and numerical simulation techniques relevant to sorption-induced deformation in porous media. To begin with, experimental studies on both mesoporous and microporous systems are summarized, revealing that the deformation response strongly depends on pore size, thereby pointing to distinct physical mechanisms operating at different scales. Subsequently, theoretical approaches that have been developed to rationalize sorption-induced deformation are considered. These models aim to describe adsorption-induced stresses originating from a variety of microscopic processes and to incorporate them into macroscopic constitutive relations capable of predicting the resulting deformations. Furthermore, numerical strategies devised to simulate this coupled phenomenon are outlined, encompassing methodologies that vary according to the scale of the pores and the level of material description. Ultimately, by assessing the current achievements and limitations, the review highlights persisting knowledge gaps and identifies critical directions for future research into sorption-induced deformation.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 4","pages":"373 - 387"},"PeriodicalIF":2.7,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733211","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 Unified Dual Phase-Field Model for Simulating Bulk Fracture and Interfacial Debonding 模拟大块断裂和界面剥离的统一双相场模型

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-07 DOI: 10.1007/s10338-025-00682-w

Xiang Wang, Yu Tan, Xiangyu Li

{"title":"A Unified Dual Phase-Field Model for Simulating Bulk Fracture and Interfacial Debonding","authors":"Xiang Wang, Yu Tan, Xiangyu Li","doi":"10.1007/s10338-025-00682-w","DOIUrl":"10.1007/s10338-025-00682-w","url":null,"abstract":"<div><p>Interfaces are commonly present in engineering materials and often serve as mechanically weak regions where cracks are prone to initiation. These cracks typically nucleate at the interface and subsequently propagate into the surrounding bulk material. The heterogeneity between the interface and the matrix complicates the simulation of their coupled fracture behavior. The treatment of material properties across the discontinuous interface critically influences the interplay between bulk fracture and interfacial debonding. An accurate prediction of crack paths across such heterogeneous interfaces remains a persistent challenge in computational mechanics. Within a unified variational framework, this study proposes an accurate phase-field model to capture complex failures in composites. Cracks and interfaces are both regularized via continuous phase-field variables, thereby eliminating geometric discontinuities and facilitating numerical implementation. An explicit analytical expression is derived to smoothly interpolate the critical energy release rate and material strength across interfaces, which ensures correct representation of interface toughness in the diffused regions. The model accommodates several generic softening laws and accurately characterizes the competition between crack deflection and penetration at interfaces. Numerical results demonstrate conservative mechanical responses, which are beneficial for safety–critical applications. This unified framework offers an accurate and efficient tool for simulating complex fracture behavior in composite and layered materials.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 8","pages":"1063 - 1078"},"PeriodicalIF":2.6,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782278","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

The Role of Shear Deformation in Localized Amorphization During Nanometric Cutting of Pure Copper 纯铜纳米切削过程中剪切变形在局部非晶化中的作用

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-03 DOI: 10.1007/s10338-025-00688-4

Hui Wang, Zhimin Cao, Chunlei He

{"title":"The Role of Shear Deformation in Localized Amorphization During Nanometric Cutting of Pure Copper","authors":"Hui Wang, Zhimin Cao, Chunlei He","doi":"10.1007/s10338-025-00688-4","DOIUrl":"10.1007/s10338-025-00688-4","url":null,"abstract":"<div><p>In this study, the shear deformation phenomena in pure copper during nanometric cutting were investigated through a combination of molecular dynamics (MD) simulations and nanometric cutting experiments. The simulation results revealed that the stacking fault (SF) formation and localized amorphous phase transitions occurred in pure copper. These observed deformation features were attributed to the development of high localized shear strain during the cutting process. The variation in SFs produced along different crystallographic orientations were found to originate from disparities in the shear stress distribution within the face-centered cubic (FCC) slip systems. Further analysis, based on the radial distribution function (RDF) and potential energy visualization, revealed that the formation of subsurface amorphous clusters is driven by local strain energy reaching the threshold required for amorphization. Nanometric cutting experiments and transmission electron microscopy (TEM) characterization confirmed the presence of subsurface point-like amorphous clusters and SFs. This study provides a valuable reference for elucidating the shear deformation mechanisms and offers theoretical guidance for amorphization of pure metallic materials.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 4","pages":"563 - 576"},"PeriodicalIF":2.7,"publicationDate":"2026-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733132","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

Partial Slip Contact Behavior of Finite-Thickness Graded Media Under Both Normal and Tangential Loads 法向和切向载荷作用下有限厚度梯度介质的局部滑移接触行为

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-03 DOI: 10.1007/s10338-025-00683-9

Yao Xu, Peijian Chen, Dengke Li, Hao Liu, Guangjian Peng

{"title":"Partial Slip Contact Behavior of Finite-Thickness Graded Media Under Both Normal and Tangential Loads","authors":"Yao Xu, Peijian Chen, Dengke Li, Hao Liu, Guangjian Peng","doi":"10.1007/s10338-025-00683-9","DOIUrl":"10.1007/s10338-025-00683-9","url":null,"abstract":"<div>\u0000 \u0000 <p>A thorough understanding of the contact behavior of graded materials is urgently needed for surface design, optimization and reliability analysis in applications such as brake discs, cylinder linings, biomedical implants, flexible electronics, and so on. However, existing models fail to accurately characterize the fretting contact behavior of finite-thickness graded media under complex loading conditions, which greatly hinders various practical and potential applications of graded materials. In this work, a novel generalized model is proposed to analyze the partial slip contact behavior of finite-thickness graded media under both normal and tangential loads. It is found that the proposed model functions well to predict contact tractions, in-plane stress along the graded medium’s surface, as well as the size of stick region. What is more, the anti-fretting performance of graded media can be effectively improved by choosing proper geometric and material parameters. The findings should be helpful not only for the anti-wear design and durability analysis of graded materials in engineering practice but also for the development of contact mechanics.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 9","pages":"1275 - 1291"},"PeriodicalIF":2.6,"publicationDate":"2026-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149014580","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

Study on the Contact Behavior Degradation of Electrical Connectors Under Multiple Insertion-Removal Cycles 多次插拔循环下电连接器接触性能退化研究

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-03 DOI: 10.1007/s10338-025-00685-7

Xu-Hai Dong, Chun-Zheng Zhang, Fei Shen

{"title":"Study on the Contact Behavior Degradation of Electrical Connectors Under Multiple Insertion-Removal Cycles","authors":"Xu-Hai Dong, Chun-Zheng Zhang, Fei Shen","doi":"10.1007/s10338-025-00685-7","DOIUrl":"10.1007/s10338-025-00685-7","url":null,"abstract":"<div>\u0000 \u0000 <p>Repeated insertion-removal processes weaken the mechanical and electrical performance of electrical connectors. A combined experimental and numerical investigation is conducted for the contact behavior degradation. Multiple insertion-removal tests are conducted on the pin-socket assembly of electrical connectors to measure the evolution of insertion force and electrical contact resistance (ECR). A finite element model of the pin-socket assembly is established to predict the effect of wear on the insertion force, contact area and ECR, in which the friction-energy-based wear model is employed. The rough surface profile described by the Weierstrass-Mandelbrot (WM) function is considered in the modeling. The numerical model is validated against experimental data. The results show that the dominant mechanism is abrasive wear, accompanied by coating removal, debris formation, and oxide film generation, which leads to a peak ECR around 6,000 cycles. Parametric studies reveal that increasing the socket diameter constriction raises both insertion force and ECR. In addition, a large surface roughness decreases the effective contact area and significantly increases ECR. The results provide insight into the mechanical and electrical degradation of electrical connectors, which offers practical guidance for structural optimization in engineering applications.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 4","pages":"544 - 551"},"PeriodicalIF":2.7,"publicationDate":"2026-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733110","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

Switching the Droplet Rebound Direction on Anisotropic Surfaces by Manipulating the Wetting State 通过控制润湿状态来改变各向异性表面上液滴的回弹方向

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-03 DOI: 10.1007/s10338-025-00687-5

Shuo-Yan Zhang, Jian-Gang Guo

{"title":"Switching the Droplet Rebound Direction on Anisotropic Surfaces by Manipulating the Wetting State","authors":"Shuo-Yan Zhang, Jian-Gang Guo","doi":"10.1007/s10338-025-00687-5","DOIUrl":"10.1007/s10338-025-00687-5","url":null,"abstract":"<div>\u0000 \u0000 <p>Droplet rebound is a key topic in interfacial physics and fluid mechanics, with important applications in industry, energy, and biomedicine. Based on the principle of energy conservation, a theoretical model was developed to describe droplet rebound on anisotropic superhydrophobic surfaces, providing functional relationships between the rebound direction and velocity of the droplet and the structural characteristic parameters. Combined with numerical simulations and experimental characterization, it was found that a stable Cassie state reduces energy dissipation during the droplet spreading and rebound process, facilitating low energy rebound. Moreover, under different parameter conditions, droplets can exhibit completely opposite motion on anisotropic surfaces. With the increase of the proportion of structures in the Wenzel wetting state, the droplet rebound direction gradually shifts from opposite to the structural inclination to the same direction. Furthermore, the droplet spreading and rebound process is primarily influenced by the droplet’s initial state and the surface compressive stability. Through force-material optimized design, the fabricated biomimetic surface enables droplets to maintain a Cassie state with minimal energy dissipation even at <i>We</i> = 18, reducing the required Weber number by 35% compared with the rebound distance in the Wenzel state. This study further refines the mechanical model of droplet rebound, addressing challenges such as the precise control of droplet motion.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 4","pages":"552 - 562"},"PeriodicalIF":2.7,"publicationDate":"2026-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733111","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

Machine Learning-Based Constitutive Model for Mesoscale Simulation of Two-Dimensional Triaxial Braided Composites 基于机器学习的二维三轴编织复合材料中尺度模拟本构模型

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-03 DOI: 10.1007/s10338-025-00680-y

Shiqi Wu, Ziqi Li, Yang Chen, Chao Zhang

{"title":"Machine Learning-Based Constitutive Model for Mesoscale Simulation of Two-Dimensional Triaxial Braided Composites","authors":"Shiqi Wu, Ziqi Li, Yang Chen, Chao Zhang","doi":"10.1007/s10338-025-00680-y","DOIUrl":"10.1007/s10338-025-00680-y","url":null,"abstract":"<div>\u0000 \u0000 <p>In this work, a machine learning (ML)-based constitutive model is developed to characterize the elastoplastic behavior of yarns in two-dimensional triaxial braided composites (2DTBCs) and applied to mesoscale finite element (FE) simulations. A <i>priori</i> mechanics knowledge, decomposing the stress and strain tensors into deviatoric, volumetric, and fiber-directional components, is incorporated into artificial neural networks (ANNs) to enhance learning efficiency and predictive accuracy using a simple ANN architecture and a small dataset. Two parallel ANNs, each with only two inputs and two outputs, are constructed to capture the deviatoric response and the coupled volumetric–fiber-directional deformation. A computational algorithm is further established for the ML-based constitutive model, with the Jacobian matrix derived for implementation in a UMAT subroutine within Abaqus/Standard. The mesoscale FE model of 2DTBC is then constructed, where the yarns are described by the proposed ML-based constitutive model and the matrix by an elastoplastic model. Axial and transverse tensile loading cases are simulated, and the results are validated against experimental data. Comparative studies with conventional constitutive models provide a detailed analysis of the mechanical response, including load-bearing mechanisms and stress concentration phenomena. The findings demonstrate that the proposed ML-based constitutive model and computational algorithm effectively capture the multiscale elastoplastic behavior of 2DTBC.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 7","pages":"985 - 999"},"PeriodicalIF":2.6,"publicationDate":"2026-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613195","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