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首页> 外文期刊>International Journal of Pressure Vessels and Piping >Cyclic thermo-mechanical material modelling and testing of 316 stainless steel
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Cyclic thermo-mechanical material modelling and testing of 316 stainless steel

机译：316不锈钢循环热机械材料建模与测试

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摘要

A programme of cyclic mechanical testing of a 316 stainless steel, at temperatures of up to 600℃ under isothermal conditions, for the identification of material constitutive constants, has been carried out using a thermo-mechanical fatigue test machine (with induction coil heating). The constitutive model adopted is a modified Chaboche unified viscoplasticity model, which can deal with both cyclic effects, such as combined isotropic and kinematic hardening, and rate-dependent effects, associated with viscoplasticity. The characterisation of 316 stainless steel is presented and compared with results from tests consisting of cyclic isothermal, as well as in-phase and out-of-phase thermo-mechanical fatigue conditions, using interpolation between the isothermal material constants to predict the material behaviour under anisothermal conditions.
机译：已经使用热机械疲劳试验机（带感应线圈加热）对316不锈钢进行了等温循环试验，以在等温条件下温度高达600℃的条件下确定材料的本构常数。所采用的本构模型是改进的Chaboche统一粘塑性模型，它既可以处理各向同性和运动学硬化相结合的循环效应，也可以处理与粘塑性相关的速率依赖效应。介绍了316不锈钢的特性，并将其与包括循环等温以及同相和异相热机械疲劳条件的测试结果进行了比较，并使用等温材料常数之间的插值来预测在以下条件下的材料行为等温条件。

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