Jsme International Journal Series A-solid Mechanics and Material Engineering最新文献

Evaluation of Initiation of the Interfacial Debonding in Single Fiber Composite 单纤维复合材料界面脱粘起始的评价

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-12-01 DOI: 10.1299/JSMEA.49.451

Souta Kimura, J. Koyanagi, H. Kawada

{"title":"Evaluation of Initiation of the Interfacial Debonding in Single Fiber Composite","authors":"Souta Kimura, J. Koyanagi, H. Kawada","doi":"10.1299/JSMEA.49.451","DOIUrl":"https://doi.org/10.1299/JSMEA.49.451","url":null,"abstract":"Fiber-matrix interfacial adhesion in composites is traditionally evaluated by means of a stress-based parameter. Recently, an interfacial energy parameter is suggested to be a valid alternative. However, the energy-based approaches overestimated the energy release rate to initiate the interfacial debonding (interfacial energy), since the plastic deformation in the vicinity of the debonding was neglected for simplicity. An effect of the plastic deformation on the interfacial energy of a fiber-reinforced polymer matrix composite is studied to evaluate the initiation of the interfacial debonding. The fragmentation tests with a model of glass fiber-reinforced vinylester matrix composite were performed, and the interfacial energy with the energy balance method taking into account an energy dissipation of the plastic deformation was calculated. The following results are confirmed; the plastic deformation has a significant influence on the interfacial energy, and the energy balance scheme taking into account the plastic energy dissipation leads to the constant interfacial energy without reference to the amount of the released potential energy. The differences between our model and the previous one are discussed.","PeriodicalId":170519,"journal":{"name":"Jsme International Journal Series A-solid Mechanics and Material Engineering","volume":"31 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133580751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Topology Optimal Compliant Microgripper 拓扑优化柔性微夹持器

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-10-15 DOI: 10.1299/JSMEA.49.589

Shyh-Chour Huang, Chi-Ming Lee, Chien-Ching Chiu, Wei-Liang Chen

引用次数: 17

Mechanical properties of amorphous metal with dispersed nanocrystalline particles: Molecular dynamics study on crystal volume fraction and size effects 具有分散纳米晶颗粒的非晶金属的力学性能:晶体体积分数和尺寸效应的分子动力学研究

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-10-15 DOI: 10.1299/JSMEA.49.513

R. Matsumoto, M. Nakagaki

{"title":"Mechanical properties of amorphous metal with dispersed nanocrystalline particles: Molecular dynamics study on crystal volume fraction and size effects","authors":"R. Matsumoto, M. Nakagaki","doi":"10.1299/JSMEA.49.513","DOIUrl":"https://doi.org/10.1299/JSMEA.49.513","url":null,"abstract":"Large-scale molecular dynamics simulations of tensile deformation of amorphous metals with nanocrystalline particles were performed in order to clarify the effects of particle size and crystal volume fraction on the deformation property and the strength. It was clarified that the size effects of the particle are very small, whereas the influences of the crystal volume fraction are large. Young’s modulus and the flow stress become large as the crystal volume fraction increases. Even after the yielding of the amorphous phase, the stress of the crystal phase still continues to increase. Thus, the flow stress of the composite increases after yielding, which prevents plastic localization and improves the ductility. When the crystal volume fraction is small, the stress distribution is homogeneous in the particle including near the amorphous-crystal interface. Therefore, possibility of deformation is small, and insideparticle plastic deformation is negligible. When the crystal volume fraction is high, the particle undergoes plastic deformation even with small global deformation. After the yielding of the crystal particle, the flow stress decreases because defects are introduced into the crystal. It is expected that there is an ideal crystal volume fraction that gives the maximum ductility. A Lennard-Jones potential modified to enforce the continuity at the cut-off distance was used as an interatomic potential. The potential parameters were defined based on Inoue’s three basic principles.","PeriodicalId":170519,"journal":{"name":"Jsme International Journal Series A-solid Mechanics and Material Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126416613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Investigation the Dynamic Interaction between Two Collinear Cracks in the Functionally Graded Piezoelectric Materials Subjected to the Harmonic Anti-Plane Shear Stress Waves by Using the Non-Local Theory 应用非局域理论研究了反平面剪应力波作用下功能梯度压电材料共线裂纹间的动力相互作用

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-10-15 DOI: 10.1299/JSMEA.49.570

Jun Liang

{"title":"Investigation the Dynamic Interaction between Two Collinear Cracks in the Functionally Graded Piezoelectric Materials Subjected to the Harmonic Anti-Plane Shear Stress Waves by Using the Non-Local Theory","authors":"Jun Liang","doi":"10.1299/JSMEA.49.570","DOIUrl":"https://doi.org/10.1299/JSMEA.49.570","url":null,"abstract":"In this paper, the non-local theory of elasticity is applied to obtain the dynamic interaction between two collinear cracks in functionally graded piezoelectric materials under the harmonic anti-plane shear stress waves for the permeable electric boundary conditions. To make the analysis tractable, it is assumed that the material properties vary exponentially with coordinate vertical to the crack. By means of the Fourier transform, the problem can be solved with the help of a pair of triple integral equations that the unknown variable is the jump of the displacement across the crack surfaces. These equations are solved by use of the Schmidt method. Unlike the classical elasticity solutions, it is found that no stress and electric displacement singularities are present at the crack tips. The non-local elastic solutions yield a finite stress at the crack tips, thus allows us to use the maximum stress as a fracture criterion. The finite stresses at the crack tips depend on the crack length, the distance between two cracks, the functionally graded parameter, the circular frequency of the incident waves and the lattice parameter of the materials, respectively.","PeriodicalId":170519,"journal":{"name":"Jsme International Journal Series A-solid Mechanics and Material Engineering","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122879628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Two Back Stress Hardening Models in Rate Independent Rigid Plastic Deformation 速率无关刚塑性变形的两种背应力硬化模型

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-10-15 DOI: 10.1299/JSMEA.49.548

S. Yun

{"title":"Two Back Stress Hardening Models in Rate Independent Rigid Plastic Deformation","authors":"S. Yun","doi":"10.1299/JSMEA.49.548","DOIUrl":"https://doi.org/10.1299/JSMEA.49.548","url":null,"abstract":"In the present work, the constitutive relations based on the combination of two back stresses are developed using the Armstrong-Frederick, Phillips and Ziegler’s type hardening rules. Various evolutions of the kinematic hardening parameter can be obtained by means of a simple combination of back stress rate using the rule of mixtures. Thus, a wide range of plastic deformation behavior can be depicted depending on the dominant back stress evolution. The ultimate back stress is also determined for the present combined kinematic hardening models. Since a kinematic hardening rule is assumed in the finite deformation regime, the stress rate is co-rotated with respect to the spin of substructure obtained by incorporating the plastic spin concept. A comparison of the various co-rotational rates is also included. Assuming rigid plasticity, the continuum body consists of the elastic deformation zone and the plastic deformation zone to form a hybrid finite element formulation. Then, the plastic deformation behavior is investigated under various loading conditions with an assumption of the J2 deformation theory. The plastic deformation localization turns out to be strongly dependent on the description of back stress evolution and its associated hardening parameters. The analysis for the shear deformation with fixed boundaries is carried out to examine the deformation localization behavior and the evolution of state variables.","PeriodicalId":170519,"journal":{"name":"Jsme International Journal Series A-solid Mechanics and Material Engineering","volume":"640 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120876201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two Collinear Interface Cracks between Two Dissimilar Functionally Graded Piezoelectric/Piezomagnetic Material Layers under Anti-Plane Shear Loading 反平面剪切载荷下两种不同功能梯度压电/压磁材料层间共线界面裂纹

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-10-15 DOI: 10.1299/JSMEA.49.559

Jun Liang

{"title":"Two Collinear Interface Cracks between Two Dissimilar Functionally Graded Piezoelectric/Piezomagnetic Material Layers under Anti-Plane Shear Loading","authors":"Jun Liang","doi":"10.1299/JSMEA.49.559","DOIUrl":"https://doi.org/10.1299/JSMEA.49.559","url":null,"abstract":"In this paper, the behavior of two collinear interface cracks between two dissimilar functionally graded piezoelectric/piezomagnetic material layers subjected to an anti-plane shear loading is investigated. To make the analysis tractable, it is assumed that the material properties vary exponentially with coordinate vertical to the crack. By using the Fourier transform, the problem can be solved with the help of a pair of triple integral equations in which the unknown variable is the jump of the displacement across the crack surfaces. These equations are solved using the Schmidt method. The normalized stress, the electrical displacement and the magnetic flux intensity factors are determined for different geometric for the permeable electric boundary conditions. The relations among the electric filed, the magnetic flux field and the dynamic stress field near the crack tips can be obtained. Numerical examples are provided to show the effect of the functionally graded parameter and the thickness of the strip upon the stress, the electric displacement and the magnetic flux intensity factors of the crack.","PeriodicalId":170519,"journal":{"name":"Jsme International Journal Series A-solid Mechanics and Material Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121069619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Stresses around an Eccentric Hole in an Infinite Strip Subjected to Side Pressure 受侧压作用的无限带材偏心孔周围的应力

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-10-15 DOI: 10.1299/JSMEA.49.536

T. Horibe, E. Tsuchida

引用次数: 1

Development of a Finite Element Contact Analysis Algorithm to Pass the Patch Test 一种通过贴片试验的有限元接触分析算法的发展

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-10-15 DOI: 10.1299/JSMEA.49.483

Xian Chen, T. Hisada

引用次数: 12

Data-Mining of Factors Affecting Circuit Connection Reliability on Laser-Drilled Micro Blind via Holes in Multi-Layer PWBs 影响激光打孔微盲板多层印刷电路板电路连接可靠性因素的数据挖掘

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-10-15 DOI: 10.1299/JSMEA.49.522

K. Ogawa, T. Hirogaki, E. Aoyama, S. Maeda, H. Inoue, T. Katayama

引用次数: 2

Free Vibration Analysis of Delaminated Composite Pretwisted Rotating Shells : A Finite Element Approach 分层复合材料预扭旋转壳体的自由振动分析:有限元方法

Jsme International Journal Series A-solid Mechanics and Material Engineering Pub Date : 2006-10-15 DOI: 10.1299/JSMEA.49.492

A. Karmakar, K. Kishimoto

引用次数: 23