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首页> 外文期刊>Materials at High Temperatures >The multiaxial and uniaxial creep ductility of Type 304 steel as a function of stress and strain rate
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The multiaxial and uniaxial creep ductility of Type 304 steel as a function of stress and strain rate

机译:304型钢的多轴和单轴蠕变延性与应力和应变率的关系

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Calculations of creep damage under conditions of strain control are often carried out using a ductility exhaustion approach. Issue 3 of the R5 procedure uses a ductility exhaustion approach to calculate creep damage, in which the ductility is a function of creep strain rate and temperature. However, recent studies have shown that the prediction of creep damage in creep-fatigue tests is improved when the creep ductility is considered to be a function of stress, creep strain rate and temperature. The aim of this paper is to describe the development of a new model for the effect of multiaxial states of stress on creep ductility which is intended for use with a creep damage model in which the creep ductility is a function of stress, creep strain rate and temperature.
机译:在应变控制条件下的蠕变损伤的计算通常使用延性耗尽方法进行。 R5过程的第3期使用延展性耗尽方法来计算蠕变损伤,其中延展性是蠕变应变率和温度的函数。然而,最近的研究表明,当蠕变延性被认为是应力,蠕变应变率和温度的函数时,蠕变疲劳试验中蠕变损伤的预测将得到改善。本文的目的是描述多轴应力状态对蠕变延展性影响的新模型的开发,该模型旨在与蠕变损伤模型一起使用,其中蠕变延展性是应力,蠕变应变率和温度。

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