International Journal of Applied Mechanics最新文献_第3页

Fracture Criteria and Crack Initiation Mechanism of Material Based on Configurational Stress 基于构型应力的材料断裂标准和裂缝引发机制

IF 3.5 3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-23 DOI: 10.1142/s175882512450025x

Chao Wang, Jili Feng

引用次数: 0

Author Index Volume 15 作者索引第 15 卷

IF 3.5 3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-21 DOI: 10.1142/s1758825123990016

引用次数: 0

An explicit modeling for the pseudoelastic response of porous SMA thick-walled cylinders under internal and external pressure 内、外压力作用下多孔SMA厚壁圆柱体伪弹性响应的显式建模

3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-08 DOI: 10.1142/s1758825124500145

Nahid Enteshari, Seyed Ahmad Tajalli

{"title":"An explicit modeling for the pseudoelastic response of porous SMA thick-walled cylinders under internal and external pressure","authors":"Nahid Enteshari, Seyed Ahmad Tajalli","doi":"10.1142/s1758825124500145","DOIUrl":"https://doi.org/10.1142/s1758825124500145","url":null,"abstract":"Shape-memory alloy (SMA) structures, either dense or porous, are widely used because of their functional characteristics arising from shape-memory effect and pseudoelasticity. Hence, the precise modeling of these materials is essential due to design issues. In this study, the solution algorithm based on an explicit phenomenological constitutive model is investigated to analyze pressurized cylinders. The proposed method is extracted following return mapping scheme to find the evolution of phase transformation in these structures. The formulation is validated by comparing uniaxial tension–compression curves during loading, unloading and thermal actuation against published literature. By the aid of this model, assuming elastic and phase transformation strains, a comprehensive study is presented to inspect stress, strain and displacement fields along the thickness of internally and externally pressurized thick-walled cylinders. To this end, the governing nonlinear equation in elastic–inelastic zones is discretized by the efficient method of generalized differential quadrature (GDQ) and the resultant relations are solved numerically. The influences of internal and external pressure on stress distribution along the cylinder wall during loading–unloading for different temperatures including phase transformation and saturation states are discussed. Also, the closed-form solution for critical pressure at the onset of the phase transformation is studied.","PeriodicalId":49186,"journal":{"name":"International Journal of Applied Mechanics","volume":" 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135293560","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 Crystal Plasticity Finite Element- Machine Learning Combined Approach for Phase Transformation Prediction in High Entropy Alloy 高熵合金晶体塑性有限元与机器学习相结合的相变预测方法

3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-07 DOI: 10.1142/s1758825124500248

Mehrzad Soltani, Sanjida Ferdousi, Ravi Sankar Haridas, Rajiv S. Mishra, Yijie Jiang

引用次数: 0

Investigation of ductile point-contact yield strength and bilinear reinforced elastic--plastic mechanical behaviour model 延性点接触屈服强度及双线增强弹塑性力学行为模型研究

3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-01 DOI: 10.1142/s1758825124500224

Zhifeng He, Haibin Zhu, Shaopeng Ma

引用次数: 0

An epigenetic bi-stability of structural metamaterials undergoing dual matching shape-memory effects 具有双重匹配形状记忆效应的结构超材料的表观遗传双稳定性

3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-01 DOI: 10.1142/s1758825124500121

Yuheng Liu, Haibao Lu, Dong-Wei Shu, Wei Min Huang, Ran Tao

{"title":"An epigenetic bi-stability of structural metamaterials undergoing dual matching shape-memory effects","authors":"Yuheng Liu, Haibao Lu, Dong-Wei Shu, Wei Min Huang, Ran Tao","doi":"10.1142/s1758825124500121","DOIUrl":"https://doi.org/10.1142/s1758825124500121","url":null,"abstract":"With the development of structural metamaterials and 3D printing technology, the polymorphic shape-memory metamaterials have attracted extensive attention. This study aims to design a structural 3D printed shape-memory metamaterial, of which the epigenetic bi-stability of shape-fixity and recovery behaviors have been achieved by means of the dual matching nominal moduli and geometrical size optimization. Epigenetic bi-stability and dual matching refer to the combination of bi-materials in a specific structure, in response to external stimuli to show adjustable bi-stability. Elastic thermoplastic polyurethane (TPU) and viscoelastic polylactic acid (PLA) both are thermally responsive shape-memory polymers (SMPs) and have been employed to fabricate the structural metamaterial, of which the nominal modulus is tailorable owing to the dual matching shape-memory effects (SMEs) of two SMP components. Furthermore, the effects of structural parameters, i.e., width of framework and width of internal support, on the nominal modulus have been investigated for the structural metamaterials, of which the shape-fixity and recovery ratios have been characterized using finite element method (FEM) analyses and experimental measurements. Finally, a constitutive relationship among structural parameters, dual matching SME and nominal modulus has been identified to explore the working principle of epigenetic bi-stability in shape-memory metamaterials. This study provides a design strategy for a shape-memory metamaterial with a post-switchable bi-stability, through dual matching SME and geometrical size optimization.","PeriodicalId":49186,"journal":{"name":"International Journal of Applied Mechanics","volume":"91 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135012038","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 new analytical approach for nonlinear global buckling of axially compressed and tensiled sandwich toroidal shell segments with CNTRC coatings and corrugated core in thermal environment 热环境下含CNTRC涂层和波纹芯的轴向压缩和拉伸夹层环面壳段的非线性全局屈曲分析新方法

3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-01 DOI: 10.1142/s1758825124500212

Vu Hoai Nam, Do Thi Kieu My, Vu Minh Duc, Nguyen Thi Giang, Pham Thanh Hieu, Nguyen Thi Phuong

引用次数: 0

Dynamic response of a rotating beam with elastic restraints in forward flight 具有弹性约束的旋转梁在前飞中的动力响应

3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-01 DOI: 10.1142/s1758825124500236

Feiyu Wang, Zhu Su, Lifeng Wang

引用次数: 0

A thermodynamic strength theoretical model to explain and predict pseudo-ductility behavior of SiC_F/SIC composite material 一个解释和预测SiCF/SIC复合材料伪延性行为的热力学强度理论模型

3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-01 DOI: 10.1142/s1758825124500133

Ze Xu, Yulan Liu, Biao Wang

{"title":"A thermodynamic strength theoretical model to explain and predict pseudo-ductility behavior of SiC<sub>F</sub>/SIC composite material","authors":"Ze Xu, Yulan Liu, Biao Wang","doi":"10.1142/s1758825124500133","DOIUrl":"https://doi.org/10.1142/s1758825124500133","url":null,"abstract":"In order to explain and predict the pseudo-ductility behavior and mechanical properties of [Formula: see text] composite material, a thermodynamic strength theoretical model based on fracture mechanics and thermodynamic method has been established. Compared with other theoretical models, the model proposed in this investigation unifies different cracks and defects based on energy method. Meanwhile, the stress–strain behavior of materials can be obtained with as few parameters as possible. Compared with previous experimental data, the correctness of this theoretical model has been verified. Some key material properties, such as elastic modulus, proportional limit stress (PLS) and yield stress (YS), have been investigated by calculating based on the theoretical model. The effect of the initial matrix porosity and the material properties of the matrix and fiber have been investigated. Results show that PLS and YS are almost not influenced by initial matrix porosity and can be seen as intrinsic parameters. Elastic modulus of the SiC reinforced fiber and the matrix can also affect material properties. Compared with the SiC matrix, PLS of the [Formula: see text] composite material is more sensitive to changes in elastic modulus of the SiC reinforced fiber. However, the improvement of elastic modulus and shear modulus of the [Formula: see text] composite material is much more difficult. For this purpose, the elastic modulus of both the SiC reinforced fiber and the matrix need to be enhanced. Results and conclusions in this investigation can provide guidance for predicting material properties of [Formula: see text] composite material and preparation in industry.","PeriodicalId":49186,"journal":{"name":"International Journal of Applied Mechanics","volume":"83 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135011903","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

Curved Electrostatic Nanobeams Incorporating Surface Energy 结合表面能的弯曲静电纳米梁

3区工程技术

International Journal of Applied Mechanics Pub Date : 2023-11-01 DOI: 10.1142/s1758825124500108

Mahmoud E. Khater

引用次数: 0