公开(公告)号：US08515688B2

公开(公告)日：2013-08-20

申请号：US12402538

申请日：2009-03-12

申请人： Qigui Wang ,  Yucong Wang ,  Guoqiu He ,  Chengshu Chen ,  Zhengfei Hu ,  Xiaoshan Liu ,  Defeng Mo

发明人： Qigui Wang ,  Yucong Wang ,  Guoqiu He ,  Chengshu Chen ,  Zhengfei Hu ,  Xiaoshan Liu ,  Defeng Mo

IPC分类号： G01B5/30 ,  G06F19/00

CPC分类号： G06F17/5009 ,  G01N2203/0073 ,  G01N2203/0218 ,  G01N2203/0246 ,  G06F2217/10

摘要： A system to predict a fatigue life of an aluminum alloy is disclosed herein. The system comprises a computer-readable medium cooperative with micromechanics-based fatigue life models for cyclic multiaxial loading. The fatigue life models predict the fatigue life by processing information received by the system relating to the aluminum alloy and the stress state present in the aluminum alloy. The received information comprises at least one of: a critical shear plane, a damage factor, a hardening factor defined by at least one of a plurality of uniaxial cyclic hardening factor parameters related to probabilistics of defects and microstructure characteristics in the aluminum alloy, an additional hardening factor related to non-proportionality, and thermophysical and mechanical properties of the aluminum alloy. The defects and microstructure characteristics can be calculated using mathematical modeling of casting, solidification and heat treatment processes or by an extreme value statistics based on metallography measurements.

摘要翻译： 本文公开了一种预测铝合金的疲劳寿命的系统。 该系统包括与用于循环多轴加载的基于微机械的疲劳寿命模型协同的计算机可读介质。 疲劳寿命模型通过处理与铝合金相关的系统接收的信息和铝合金中存在的应力状态来预测疲劳寿命。 所接收的信息包括以下中的至少一个：临界剪切平面，损伤因子，由与铝合金中的缺陷概率和微结构特征相关的多个单轴循环硬化因子参数中的至少一个限定的硬化因子，附加 与非比例性相关的硬化因素，以及铝合金的热物理和机械性能。 可以使用铸造，凝固和热处理工艺的数学建模或基于金相测量的极值统计来计算缺陷和微结构特征。

公开(公告)号：US20100235110A1

公开(公告)日：2010-09-16

申请号：US12402538

申请日：2009-03-12

申请人： Qigui Wang ,  Yucong Wang ,  Guoqiu He ,  Chengshu Chen ,  Zhengfei Hu ,  Xiaoshan Liu ,  Defeng Mo

发明人： Qigui Wang ,  Yucong Wang ,  Guoqiu He ,  Chengshu Chen ,  Zhengfei Hu ,  Xiaoshan Liu ,  Defeng Mo

IPC分类号： G06F19/00 ,  G06F11/30 ,  G01L1/00 ,  G06F17/18

CPC分类号： G06F17/5009 ,  G01N2203/0073 ,  G01N2203/0218 ,  G01N2203/0246 ,  G06F2217/10

摘要： A system to predict a fatigue life of an aluminum alloy is disclosed herein. The system comprises a computer-readable medium cooperative with micromechanics-based fatigue life models for cyclic multiaxial loading. The fatigue life models predict the fatigue life by processing information received by the system relating to the aluminum alloy and the stress state present in the aluminum alloy. The received information comprises at least one of: a critical shear plane, a damage factor, a hardening factor defined by at least one of a plurality of uniaxial cyclic hardening factor parameters related to probabilistics of defects and microstructure characteristics in the aluminum alloy, an additional hardening factor related to non-proportionality, and thermophysical and mechanical properties of the aluminum alloy. The defects and microstructure characteristics can be calculated using mathematical modeling of casting, solidification and heat treatment processes or by an extreme value statistics based on metallography measurements.

摘要翻译： 本文公开了一种预测铝合金的疲劳寿命的系统。 该系统包括与用于循环多轴加载的基于微机械的疲劳寿命模型协同的计算机可读介质。 疲劳寿命模型通过处理与铝合金相关的系统接收的信息和铝合金中存在的应力状态来预测疲劳寿命。 所接收的信息包括以下中的至少一个：临界剪切平面，损伤因子，由与铝合金中的缺陷概率和微结构特征相关的多个单轴循环硬化因子参数中的至少一个限定的硬化因子，附加 与非比例性相关的硬化因素，以及铝合金的热物理和机械性能。 可以使用铸造，凝固和热处理工艺的数学建模或基于金相测量的极值统计来计算缺陷和微结构特征。