Plastic Physics of Defect Mechanics
缺陷力学塑性物理
基本信息
- 批准号:20226004
- 负责人:
- 金额:$ 74.63万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (S)
- 财政年份:2008
- 资助国家:日本
- 起止时间:2008 至 2012
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Yielding of polycrystalline ductile materials can be realized by transfer of dislocation across a grain boundary (GB), or by incorporation between the residual GB dislocation and the dislocations nucleated in the near-field of GB due to the applied stress. These phenomena are determined by the crystallographic orientation and the multiaxial stress state around GB. In the present research, the interaction between dislocations and GB among several defects interactions has been investigated from nanoindentation using a micro-sized pillars consisting of two grains and one GB. Also molecular dynamics simulations revealed the physical dislocation reactions under a uniform compression and a nonuniform indentation stress state.These interactions can be summarized by using a boundary interaction condition proposed here.
多晶韧性材料的屈服可以通过位错穿过晶界(GB)的转移来实现,也可以通过残留的GB位错与由于施加应力而在GB近场中形核的位错之间的合并来实现。这些现象是由晶体学取向和GB周围的多轴应力状态决定的。在本研究中,位错和GB之间的相互作用的几个缺陷的相互作用已经从纳米压痕使用的微尺寸的柱组成的两个晶粒和一个GB。分子动力学模拟还揭示了均匀压缩和非均匀压痕应力状态下位错的物理反应,这些相互作用可以用本文提出的边界相互作用条件来概括。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Heterogeneous Grain Boundary Effect using Displacement Burst of Nanoindentation
利用纳米压痕位移爆发的异质晶界效应
- DOI:
- 发表时间:2008
- 期刊:
- 影响因子:0
- 作者:Yoji Shibutani
- 通讯作者:Yoji Shibutani
Heterogeneous Grain Boundary Effect to Displacement Burst of Nanoindentation
纳米压痕位移爆发的非均质晶界效应
- DOI:
- 发表时间:2008
- 期刊:
- 影响因子:0
- 作者:Tasuku Onodera;Yusuke Morita;Ai Suzuki;Riadh Sahnoun;Michihisa Koyama;Hideyuki Tsuboi;Nozomu Hatakeyama;Akira Endou;Hiromitsu Takaba;Momoji Kubo;Carlos A. Del Carpio;Ramesh C. Deka;Clotilde Minfray;Jean-Michel Martin;and Akira Miyamoto;Yoji Shibutani
- 通讯作者:Yoji Shibutani
Nanoscale contact plasticity of crystalline metals: Experiment and analytical investigation via atomistic and discrete dislocation models
晶体金属的纳米级接触塑性:通过原子和离散位错模型进行实验和分析研究
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:T. Tsuru;Y. Shibutani and Y. Kaji
- 通讯作者:Y. Shibutani and Y. Kaji
Nondestructive Thermal Wave Detection of Internal Micro-defects using Scanning Electron-induced Acoustic Microscope
使用扫描电子感声显微镜无损热波检测内部微缺陷
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:Y. Shibutani;J. Fujita and A. Koyama
- 通讯作者:J. Fujita and A. Koyama
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SHIBUTANI Yoji其他文献
SHIBUTANI Yoji的其他文献
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{{ truncateString('SHIBUTANI Yoji', 18)}}的其他基金
Innovative Network Structures with Size Effect and Nonlocality
具有规模效应和非局域性的创新网络结构
- 批准号:
26249002 - 财政年份:2014
- 资助金额:
$ 74.63万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Modeling of Multibody-dynamics of Superior Members under Occlusion
遮挡下高级成员的多体动力学建模
- 批准号:
23656087 - 财政年份:2011
- 资助金额:
$ 74.63万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Research on Internal Structural Evolution driven by Collective Defects Field Dynamics for Multiscale Modeling
多尺度建模的集体缺陷场动力学驱动的内部结构演化研究
- 批准号:
15360054 - 财政年份:2003
- 资助金额:
$ 74.63万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Collective Mechanical Behavior of dislocation Network Developed under Indentation
压痕下位错网络的集体力学行为
- 批准号:
13450047 - 财政年份:2001
- 资助金额:
$ 74.63万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Meso-scale Nondestructive Observation System of Self-organized Dislocation Network using Scanning Electron Acoustic Microscopy
扫描电声显微镜自组织位错网络细观无损观测系统
- 批准号:
12555028 - 财政年份:2000
- 资助金额:
$ 74.63万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Interatomic Description of Clustered Structure for Strength of Diamond-like-carbon Film
类金刚石碳膜强度簇状结构的原子间描述
- 批准号:
11650092 - 财政年份:1999
- 资助金额:
$ 74.63万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Nonlocal Elastic Constants of Inhomoegeneous Structure by Linking Approach of Generalized Continuum to Atomistic Model
广义连续体与原子模型的联系方法研究非齐次结构的非局部弹性常数
- 批准号:
08650111 - 财政年份:1996
- 资助金额:
$ 74.63万 - 项目类别:
Grant-in-Aid for Scientific Research (C)