Generalization of unified transformation-plasticity constitutive equation with identified material parameters and the application to metallo-thermo-mechanical simulation.
具有确定材料参数的统一相变塑性本构方程的推广及其在金属热机械模拟中的应用。
基本信息
- 批准号:21560104
- 负责人:
- 金额:$ 2.91万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2009
- 资助国家:日本
- 起止时间:2009 至 2011
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The project motivates to propose a model of evaluating the transformation plasticity, TP, coefficient by numerical calculation since identification of the coefficient so far needs complicated and time consuming experiments. A parallely connected two bar model consisted of mother and new phases is proposed : Tensile stress occurs in mother phase with larger thermal expansion coefficient in the course of cooling phase transformation, while compressive stress takes place in new phase with smaller coefficient in new phase. A tensile external stress even lower than yield stress is accelerated by the initial tensile stress in mother phase easily reaches yielding followed by plastic deformation. Simple thermo-elastic-plastic theory is employed to numerically calculate the rate and the current value of stress and strain in both phases depending on the amount of externally applied stress by use of material parameters for stress-strain relation and phase transformation kinetics characterized to material focused. Deviation of induced strain subjected to external stress from that of zero stress is now regarded as TP strain, and the TP coefficient is obtained by the TP strain divided by the external stress.
该项目的动机,提出了一个模型,评估相变塑性,TP,系数的数值计算,因为识别的系数,到目前为止,需要复杂和耗时的实验。提出了一个由母相和新相组成的并联双杆模型:在冷却相变过程中,热膨胀系数较大的母相产生拉应力,而热膨胀系数较小的新相产生压应力。甚至低于屈服应力的拉伸外应力被母相中的初始拉伸应力加速,容易达到屈服,随后发生塑性变形。采用简单的热弹塑性理论,利用表征应力-应变关系的材料参数和表征材料相变动力学的材料参数,数值计算了应力和应变随外加应力大小变化的速率和当前值。将外加应力作用下的诱导应变与零应力作用下的诱导应变之差称为TP应变,TP系数由TP应变除以外加应力得到。
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)
Finite Element Analysis of Deformation and Residual Stress in Induction Hardened Steel Bar
感应淬火钢棒变形和残余应力的有限元分析
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:K.Okamura;K.Yamamoto;T.Saitoh;M.Fukumoto;H.Nogami;K.Okamura;T.Sugimoto;Y.Watanabe;M.Narazaki
- 通讯作者:M.Narazaki
A phase field modelling for multi-scale deformation mechanics of polycrystalline metals
- DOI:10.1016/j.proeng.2011.04.296
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:T. Uehara
- 通讯作者:T. Uehara
Computer Simulation of Microscopic Stress Distribution in Complex Microstructure Using a Phase Field Model
使用相场模型对复杂微观结构中的微观应力分布进行计算机模拟
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Satoshi Kishida;Dong-Ying Ju and Hong He;Takuya Uehara
- 通讯作者:Takuya Uehara
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INOUE Tatsuo其他文献
INOUE Tatsuo的其他文献
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{{ truncateString('INOUE Tatsuo', 18)}}的其他基金
Construction of a philosophical foundation of Global Legisprudence by unifying legisprudence and theories of global justice
统一法学与全球正义理论,构建全球法学的哲学基础
- 批准号:
15H03288 - 财政年份:2015
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Analysis of chemical compoung and maechanical field during nitriding
氮化过程中的化学成分和力学场分析
- 批准号:
24560118 - 财政年份:2012
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Legal-philosophical reconstruction of the study of legislation as
立法研究的法哲学重建
- 批准号:
21330001 - 财政年份:2009
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Public-Philosophical Foundation Building for the Study ofLegislation
立法研究的公共哲学基础构建
- 批准号:
18330002 - 财政年份:2006
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Unified Plasticity Theory of Transformation plastic Behavior and the Microscopic Investigation
相变塑性行为的统一塑性理论及微观研究
- 批准号:
17560085 - 财政年份:2005
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Theoretical Foundation Building for Philosophy of Law as Public Philosophy
作为公共哲学的法哲学的理论基础构建
- 批准号:
15330002 - 财政年份:2003
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
The multi-layered diversification of public spheres and the reconstruction of legal system
公共领域的多层次多元化与法制重构
- 批准号:
13620003 - 财政年份:2001
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Construction of Materials Database on High Temperature Inelastic Behavior of Metallic Materials and the Application to Numerical Analyses
金属材料高温非弹性行为材料数据库的构建及数值分析应用
- 批准号:
11555033 - 财政年份:1999
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
A Research on Microscopic and Macroscopic Mechanics in Melting/Solidification Processes Incorporating Moving Boundary/Interface, and Its Application to Welding and Bonding
结合移动边界/界面的熔化/凝固过程的微观和宏观力学及其在焊接和粘接中的应用研究
- 批准号:
10305011 - 财政年份:1998
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (A).
Sesearch on the mechanism of debonding process on the matrix-reinforcement interface of metai-matrix composites and the development of the method of analysis
超基体复合材料基体-增强界面脱粘机理研究及分析方法发展
- 批准号:
08455058 - 财政年份:1996
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
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