Acta Mechanica Solida Sinica最新文献_第3页

A Thermo-mechanical-oxidation-diffusion Coupled Peridynamic Model for Ablative Behavior of ZrC-Coated C/C Composites zrc包覆C/C复合材料烧蚀行为的热-机械-氧化-扩散耦合动力学模型

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-10-06 DOI: 10.1007/s10338-025-00632-6

Yuanjun Guo, Jun Li, Yuanzhe Li, Hai Mei, Xin Lai, Xiang Liu, Lisheng Liu

{"title":"A Thermo-mechanical-oxidation-diffusion Coupled Peridynamic Model for Ablative Behavior of ZrC-Coated C/C Composites","authors":"Yuanjun Guo, Jun Li, Yuanzhe Li, Hai Mei, Xin Lai, Xiang Liu, Lisheng Liu","doi":"10.1007/s10338-025-00632-6","DOIUrl":"10.1007/s10338-025-00632-6","url":null,"abstract":"<div><p>The ablation behavior of ZrC-coated C/C composites is a complex coupling process involving thermal, mechanical, chemical interactions, formation and propagation of cracks. In the present study, we propose a peridynamic (PD) thermo-mechanical-oxidation-diffusion coupled model to describe such a phenomenon comprehensively. Firstly, motion and heat transfer equations are formulated, incorporating growth strain governed by the Clarke model. The oxidation rate of the material is evaluated using diffusion equilibrium and oxidation equations. In addition, the effects of oxidation on different materials are considered, such as growth strain in ZrC materials and material consumption caused by oxidation of C/C composites. To characterize the material failure caused by mechanical and chemical reactions in ablation, a porosity criterion is proposed and its effect on diffusion is considered. The reliability and accuracy of the proposed PD model are validated by analyzing the oxidation process of C/C composites and ZrC and comparing with experimental results. Further, the model effectively captured the crack propagation and oxidation of ZrC-coated C/C composites in an oxyacetylene environment.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 2","pages":"226 - 240"},"PeriodicalIF":2.7,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147337705","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

Molecular Dynamics Simulation on Compatibility and Microstructure Evolution During Stress-Induced Phase Transformation in NiTi Single Crystal NiTi单晶应力诱导相变过程相容性及微观结构演变的分子动力学模拟

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-09-22 DOI: 10.1007/s10338-025-00638-0

Yi-Fan Li, Wen-Ping Wu, Yong-Jun He, Hao Yin

{"title":"Molecular Dynamics Simulation on Compatibility and Microstructure Evolution During Stress-Induced Phase Transformation in NiTi Single Crystal","authors":"Yi-Fan Li, Wen-Ping Wu, Yong-Jun He, Hao Yin","doi":"10.1007/s10338-025-00638-0","DOIUrl":"10.1007/s10338-025-00638-0","url":null,"abstract":"<div><p>Understanding phase transformation behaviors is essential for the material design of shape memory alloys (SMAs). This paper studies stress-induced phase transformation in single-crystal NiTi SMAs with three orientations (i.e., <span>(:left[0:0:1right])</span>, <span>(:left[1:0:1right])</span>, and <span>(:left[1:1:1right])</span>) using molecular dynamics (MD) simulations. Microstructural evolutions and mechanical responses are analyzed. Results indicate that different orientations promote transformation into martensitic variants with greater atomic-scale transformation strain, resulting in larger phase transformation strains in the stress-strain responses. Subsequently, microstructure compatibility is studied. Patterns after transformation are classified into three types: parallel twins, twin-twin domains, and multiple-twin domains. The specific patterns formed depend on both loading mode and crystal orientation. Further analyses indicate that: (1) all the interfaces obtained in this study satisfy their corresponding twinning equations; (2) the global compatibility analysis shows the [1 0 1] compression model’s cross twinning matches one ideal case, while the [1 1 1] tension model’s triple junction corresponds to four possible cases. This work provides novel insights into microstructure compatibility in differently oriented NiTi single crystal, enhancing understanding of their phase transformation processes.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 3","pages":"329 - 360"},"PeriodicalIF":2.7,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561101","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 Biaxial Tensile Experiment of Cruciform Specimen with Electromagnetically Actuated Punch 十字形试件电磁驱动冲床动态双轴拉伸试验

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-09-08 DOI: 10.1007/s10338-025-00627-3

Wei Liu, Chenhao Xie, Bo Peng, Jiaqi Li, Shangyu Huang

引用次数: 0

A Shell Element Based on SE(3) Group with Precision-Reserved Interpolation for Geometrically Nonlinear Problems 基于SE(3)群的保精度插值壳元求解几何非线性问题

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-08-28 DOI: 10.1007/s10338-025-00637-1

Xinyang Ge, Yancong Wang, Tiantian Tang, Kai Luo

{"title":"A Shell Element Based on SE(3) Group with Precision-Reserved Interpolation for Geometrically Nonlinear Problems","authors":"Xinyang Ge, Yancong Wang, Tiantian Tang, Kai Luo","doi":"10.1007/s10338-025-00637-1","DOIUrl":"10.1007/s10338-025-00637-1","url":null,"abstract":"<div><p>Based on the special Euclidean group <i>SE</i>(3), a geometrically exact shell element is proposed for the analysis of structures undergoing large deformation and finite rotation. First, a unified description of the nodal variables is established within the <i>SE</i>(3) framework, which accurately captures the coupling effect of translation and rotation. However, conventional interpolation schemes on the non-commutative manifold are path-dependent and fail to maintain physical objectivity, which often leads to spurious strain energy. By combining implicit iterative interpolation and explicit relative configuration interpolation, a precision-reserved interpolation scheme is proposed. By applying the logarithmic mapping on the <i>SE</i>(3) manifold, nodal configuration increments are transformed into the left tangent space of the same reference point, eliminating path dependency. Subsequently, the Lagrange interpolation is applied to both the translational and rotational increments in this tangent space, ensuring their <i>C</i>° continuity. Finally, the explicit expressions for the discrete deformation gradients and strains are derived based on the variational principles. Furthermore, the permutation tensor is utilized to handle the variation and linearization of the involved nonlinear mappings. It results in the explicit expression for the geometric stiffness matrix and thus reduces the updating operation of the Jacobian matrix during iterations. Four numerical examples are presented to verify the property of the element in resisting shear locking and its accuracy in handling geometric nonlinear problems of thin-walled or thick-walled structures.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 3","pages":"298 - 315"},"PeriodicalIF":2.7,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561384","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

Topological Edge State of Lamb Waves in Pillared Phononic Crystal Plates 柱状声子晶体板中Lamb波的拓扑边缘态

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-08-20 DOI: 10.1007/s10338-025-00621-9

Lin Chen, Guohua Nie

{"title":"Topological Edge State of Lamb Waves in Pillared Phononic Crystal Plates","authors":"Lin Chen, Guohua Nie","doi":"10.1007/s10338-025-00621-9","DOIUrl":"10.1007/s10338-025-00621-9","url":null,"abstract":"<div>\u0000 \u0000 <p>The Hall effect of elastic waves has attracted much attention due to its unique properties. A hexagonal lattice phononic crystal plate model is designed in this paper. By changing the spatial symmetry of the unit cell, a band gap for the A<sub>0</sub> Lamb wave is opened. The existence of the edge state of the phononic crystal plate is obtained by finite element simulation. It is found that both zigzag-type edge and bridge edge are topological edge states by analysis of the band structure of the supercell. A rectangular model with a straight channel is designed and the simulation results show that the two types of channels are topologically protected only for the A<sub>0</sub> mode Lamb wave but not for the S<sub>0</sub> mode. In addition, the results of numerical simulation are verified by experimental data measured by a laser vibrometer. Finally, it is found that neither upside V-shaped channels nor channels with defects will affect the stable propagation of A<sub>0</sub> Lamb waves along the proposed route. This proposed model and method are helpful in broadening the means of regulating elastic waves in phononic crystal structures, and extending practical application of topological edge states in such structures.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 2","pages":"166 - 175"},"PeriodicalIF":2.7,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340174","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

Discussions on Accurately and Efficiently Capturing Necking Onset in Uniaxial Tension Using Finite Element Modeling 用有限元模型准确有效地捕捉单轴拉伸缩颈起始点的探讨

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-08-13 DOI: 10.1007/s10338-025-00633-5

Hengyi Zhao, Peidong Lei, Pengfei Yang, Bin Liu

{"title":"Discussions on Accurately and Efficiently Capturing Necking Onset in Uniaxial Tension Using Finite Element Modeling","authors":"Hengyi Zhao, Peidong Lei, Pengfei Yang, Bin Liu","doi":"10.1007/s10338-025-00633-5","DOIUrl":"10.1007/s10338-025-00633-5","url":null,"abstract":"<div><p>Necking during uniaxial tension is a widely studied mechanical phenomenon of both theoretical and practical importance. This study investigates how to capture its onset accurately and efficiently using finite element methods. Various element types and boundary conditions are examined, including hexahedral, tetrahedral, and reduced-dimensional truss elements, under both displacement- and force-controlled loading. A counterintuitive force application issue is identified in commercial software when using tetrahedral elements, and the impact of mixed-element meshes is evaluated. It is shown that accurate necking prediction with hexahedral elements under displacement control requires a high aspect ratio and a fine mesh, while force control achieves similar accuracy with only a few elements. Truss elements perform reliably across all settings, even with minimal discretization. In contrast, mixing tetrahedral and hexahedral elements introduces errors: mesh refinement can reduce strain non-uniformity but not fully eliminate instability prediction deviations. These findings provide practical guidance for selecting element types and mesh strategies in necking simulations.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 3","pages":"241 - 250"},"PeriodicalIF":2.7,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147559536","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 Electro-thermo-mechanically Coupled Crystal Plasticity Model for Electroplasticity 电塑性的电-热-机械耦合晶体塑性模型

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-07-31 DOI: 10.1007/s10338-025-00630-8

Xinghai Zheng, Min Yi

{"title":"An Electro-thermo-mechanically Coupled Crystal Plasticity Model for Electroplasticity","authors":"Xinghai Zheng, Min Yi","doi":"10.1007/s10338-025-00630-8","DOIUrl":"10.1007/s10338-025-00630-8","url":null,"abstract":"<div>\u0000 \u0000 <p>This study establishes an electro-thermo-mechanically coupled crystal plasticity framework incorporating electroplastic effect to elucidate the fundamental mechanisms of current-assisted deformation in pure copper. In this framework, the thermal and athermal effects of electric current are independently described by the crystal plasticity constitutive model in terms of temperature and current density, respectively. The temperature field and current density distribution are obtained by solving the coupled heat conduction equation and current continuity equation. The model parameters are calibrated using experimental stress-strain responses of polycrystalline copper at different temperatures and current densities. Numerical simulations reveal that the thermal effects of electric current primarily manifest as shear modulus softening and enhanced thermal activation of dislocations, which have a relatively minor impact on flow stress. In contrast, the athermal effect significantly reduces both yield stress and hardening modulus by weakening the short-range and long-range resistances, leading to notable differences in flow stress during the work-hardening stage. Microstructural analysis shows that electric current alleviates stress concentrations caused by grain orientation differences and promotes more uniform distributions of dislocation density and slip deformation during plastic deformation. The proposed framework bridges the mesoscale dislocation slip and evolution with macroscale mechanical responses, providing critical insights for optimizing electrically-assisted forming processes through controlled electroplastic deformation.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 3","pages":"279 - 290"},"PeriodicalIF":2.7,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561926","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 Enhancement of Charge Transfer and Friction at the Interfaces between Defected h-BN and Water: a Density-Functional-Theory-Based Machine Learning Study 缺陷h-BN与水界面上电荷转移和摩擦的增强：基于密度泛函理论的机器学习研究

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-07-31 DOI: 10.1007/s10338-025-00628-2

Yu Zhong, Hao Li, Yufeng Guo

{"title":"The Enhancement of Charge Transfer and Friction at the Interfaces between Defected h-BN and Water: a Density-Functional-Theory-Based Machine Learning Study","authors":"Yu Zhong, Hao Li, Yufeng Guo","doi":"10.1007/s10338-025-00628-2","DOIUrl":"10.1007/s10338-025-00628-2","url":null,"abstract":"<div><p>Understanding the friction behavior between hexagonal boron nitride (h-BN) and water is critical for the potential applications of h-BN in liquid-related functional devices. By using a density-functional-theory (DFT)-based machine learning (ML) technique combined with long-time ML-parameterized molecular dynamics simulations, we have systematically investigated charge transfer and friction at the interfaces between h-BN and water. The introduction of defects (including Stone-Wales, B-vacancy, N-vacancy, and B-vacancy/N-vacancy defects) into h-BN significantly enhances heterogeneous charge polarization and distribution at h-BN layers, as well as increases the friction coefficients at water/h-BN interfaces compared to perfect h-BN. The observed increase in interfacial friction of defected h-BN can be attributed to stronger charge transfer and higher charge density at the defected h-BN layers induced by interactions with water molecules. Our results offer deeper insights into the role of defects in modulating charge exchange and transfer between water and h-BN, as well as their impact on interfacial friction.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 2","pages":"218 - 225"},"PeriodicalIF":2.7,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147342956","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 Fully Edge-Based Smoothed Finite Element Method for Free Vibration Analysis of Functionally Graded Plates 功能梯度板自由振动分析的全边缘光滑有限元法

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-07-25 DOI: 10.1007/s10338-025-00635-3

Linli Mo, Shenshen Chen, Qinghua Li, Xiushao Zhao

{"title":"A Fully Edge-Based Smoothed Finite Element Method for Free Vibration Analysis of Functionally Graded Plates","authors":"Linli Mo, Shenshen Chen, Qinghua Li, Xiushao Zhao","doi":"10.1007/s10338-025-00635-3","DOIUrl":"10.1007/s10338-025-00635-3","url":null,"abstract":"<div><p>This paper presents a novel fully edge-based smoothed finite element method for free vibration analysis of functionally graded plates, incorporating a quasi-weak form of smoothed integral within an edge-based finite element method framework. Employing first-order shear deformation plate theory, the present method accounts for transverse shear strain and rotary inertia effects while addressing exponentially graded material properties along the plate thickness. The formulation integrates a three-node Mindlin plate element (MIN3) with a shear stabilization technique to prevent shear locking. The quasi-weak form of smoothed integral necessitates the evaluation of indefinite integrals for shape functions, effectively tacking domain integrals related to the shape functions without partial derivatives. By applying both quasi-weak form of smoothed integral and strain smoothing technique, all domain integrals in stiffness and mass matrices are converted into boundary integrals over smoothing domains. Therefore, isoparametric mapping and computing of Jacobian matrix are completely eliminated throughout the solution process. The natural frequencies obtained using the present method are in good agreement with those reported in the literature, highlighting the versatility of the present method for free vibration analysis of functionally graded plates. Notably, the present method demonstrates advantages in eliminating shear locking and reducing sensitivity to mesh distortion.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"38 6","pages":"1086 - 1102"},"PeriodicalIF":2.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145750476","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

Thermal Vibrations and Buckling Analysis of Bidirectional Functionally Graded Beams Under Axial and Transverse Temperature Gradients 轴向和横向温度梯度作用下双向功能梯度梁的热振动和屈曲分析

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-07-24 DOI: 10.1007/s10338-025-00620-w

Haizhou Liu, Yang Zhao, Fangtong Luo, Hao Tian, Weihua Xie

{"title":"Thermal Vibrations and Buckling Analysis of Bidirectional Functionally Graded Beams Under Axial and Transverse Temperature Gradients","authors":"Haizhou Liu, Yang Zhao, Fangtong Luo, Hao Tian, Weihua Xie","doi":"10.1007/s10338-025-00620-w","DOIUrl":"10.1007/s10338-025-00620-w","url":null,"abstract":"<div><p>Bidirectional functionally graded (BDFG) beams are a promising solution for spacecraft structures subjected to extreme thermal and vibrational environments due to their superior thermal performance and design flexibility. Therefore, developing an efficient and highly convergent thermal vibration analysis method for BDFG beams under complex temperature fields is of paramount importance. This paper proposes a Chebyshev spectral method based on Reddy’s higher-order shear deformation theory (HSDT) to investigate the thermoelastic vibrations of BDFG beams. The material properties are temperature-dependent and vary with both thickness and length. The proposed method is validated by comparing the results with those in the existing literature. The analysis reveals that the critical buckling temperature rise is primarily influenced by the ceramic content, but thermal buckling can be mitigated by adjusting the material distribution. A trade-off exists between suppressing thermal buckling and relaxing thermal stresses, necessitating a balanced approach. The titanium alloy BDFG beam offers a broader design envelope compared to the metal-ceramic BDFG beam. The method presented in this study will provide theoretical support and guidance for the design of BDFG beams.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 2","pages":"152 - 165"},"PeriodicalIF":2.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147341673","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