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公开(公告)号：US08479587B2
公开(公告)日：2013-07-09
申请号：US12308502
申请日：2006-06-28
摘要： A method for indicating fatigue damage rate of a hardened metal object in relation to load cycles, N, exerted on the hardened metal object, wherein the hardened metal object presents a temperature essentially corresponding to the operating conditions of the hardened metal object is disclosed. It comprises calculating the fatigue rate based on an effective activation energy parameter for the dislocation climb process, Q, shear stress amplitude, T, the absolute local temperature of the hardened metal object, T, and load frequency, f. Methods for indicating fatigue and predicting life of a metal object are disclosed.
摘要翻译： 一种用于指示硬化金属物体相对于硬化金属物体上的载荷循环N的疲劳损伤率的方法，其中硬化的金属物体具有基本上对应于硬化的金属物体的操作条件的温度。 它包括基于位错爬升过程的有效活化能参数Q，剪切应力振幅T，硬化金属物体的绝对局部温度T和载荷频率f计算疲劳率。 公开了用于指示疲劳和预测金属物体的寿命的方法。
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公开(公告)号：US20100299085A1
公开(公告)日：2010-11-25
申请号：US12308502
申请日：2006-06-28
摘要： A method for indicating fatigue damage rate of a hardened metal object in relation to load cycles, N, exerted on the hardened metal object, wherein the hardened metal object presents a temperature essentially corresponding to the operating conditions of the hardened metal object is disclosed. It comprises calculating the fatigue rate based on an effective activation energy parameter for the dislocation climb process, Q, shear stress amplitude, T, the absolute local temperature of the hardened metal object, T, and load frequency, f. Methods for indicating fatigue and predicting life of a metal object are disclosed.
摘要翻译： 一种用于指示硬化金属物体相对于硬化金属物体上的载荷循环N的疲劳损伤率的方法，其中硬化的金属物体具有基本上对应于硬化的金属物体的操作条件的温度。 它包括基于位错爬升过程的有效活化能参数Q，剪切应力振幅T，硬化金属物体的绝对局部温度T和载荷频率f计算疲劳率。 公开了用于指示疲劳和预测金属物体的寿命的方法。
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3.发明授权Method of determining material dependent constants of a metal object on fatigue testing 有权确定疲劳试验中金属物体的材料依赖常数的方法公开(公告)号：US08839679B2
公开(公告)日：2014-09-23
申请号：US12308501
申请日：2007-06-27
摘要： A method of determining material constants of a hardened metal object being exerted to load cycles, and a method of indicating fatigue damage rate of a hardened metal object in relation to load cycles, N, exerted on the hardened metal object, wherein material dependent constants of the hardened metal object are determined according to the method of determining material dependent constants of the hardened metal object. Methods for indicating fatigue and predicting life of a metal object are disclosed.
摘要翻译： 确定施加到负载循环的硬化金属物体的材料常数的方法以及指示硬化金属物体相对于硬化金属物体上的负载循环N的疲劳损伤率的方法，其中材料依赖常数 根据确定硬化金属物体的材料相关常数的方法确定硬化金属物体。 公开了用于指示疲劳和预测金属物体的寿命的方法。
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4.发明申请Method of determining material dependent constants of a metal object on fatigue testing 有权确定疲劳试验中金属物体的材料依赖常数的方法公开(公告)号：US20110259116A1
公开(公告)日：2011-10-27
申请号：US12308501
申请日：2007-06-27
IPC分类号： G01N3/32
摘要： A method of determining material constants of a hardened metal object being exerted to load cycles, and a method of indicating fatigue damage rate of a hardened metal object in relation to load cycles, N, exerted on the hardened metal object, wherein material dependent constants of the hardened metal object are determined according to the method of determining material dependent constants of the hardened metal object. Methods for indicating fatigue and predicting life of a metal object are disclosed.
摘要翻译： 确定施加到负载循环的硬化金属物体的材料常数的方法以及指示硬化金属物体相对于硬化金属物体上的负载循环N的疲劳损伤率的方法，其中材料依赖常数 根据确定硬化金属物体的材料相关常数的方法确定硬化金属物体。 公开了用于指示疲劳和预测金属物体的寿命的方法。
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公开(公告)号：US20100332153A1
公开(公告)日：2010-12-30
申请号：US12808154
申请日：2007-12-14
IPC分类号： G01N3/24
摘要： The present invention concerns a method of calculating the expected life of a hardened metal object in relation to a number of fatigue load cycles exerted on the hardened metal object. The method comprises determining the development of microstructural deterioration as a function of fatigue exposure time, deriving therefrom an equation for the development of a Fatigue Damage Index as a function of fatigue exposure time and relating this equation to a known critical value of the Fatigue Damage Index that leads to material failure. The present invention also provides a method of calculating the remaining life of a hardened metal object subjected to fatigue loading.
摘要翻译： 本发明涉及一种计算硬化金属物体相对于硬化金属物体的疲劳载荷循环次数的预期寿命的方法。 该方法包括确定微结构退化作为疲劳暴露时间的函数的发展，从而得出作为疲劳暴露时间的函数的疲劳损伤指数的发展方程，并将该方程与疲劳损伤指数的已知临界值相关联 导致材料故障。 本发明还提供一种计算经受疲劳载荷的硬化金属物体的剩余寿命的方法。
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