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金属学报  2006 

低周疲劳寿命预测的能量模型探讨

, PP. 195-200

Keywords: 低周疲劳,熵守恒,能量守恒,应变能

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Abstract:

从熵守恒定律和能量守恒定律出发,推导出一个新的低周疲劳寿命预测能量模型,并以该模型为基础,对线性累积损伤法则进行了探讨.通过316L钢420℃环境下应力控制的低周疲劳实验,用该模型及基于该模型的线性累积损伤法则进行了低周疲劳寿命和剩余寿命的预测,预测结果与实测结果符合较好.

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