金属蠕变断裂和蠕变疲劳建模

Q4 Engineering Rakenteiden Mekaniikka Pub Date : 2017-12-14 DOI:10.23998/RM.64657

Petteri Kauppila, Reijo Kouhia, Juha Ojanperä, Timo Saksala, Timo Sorjonen

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摘要

本文讨论了金属蠕变断裂和疲劳的建模问题。对蠕变现象的物理机制作了简要的描述。详细描述了所建立的热力学一致材料模型。对7CrMoVTiB10-10钢在500-600℃温度范围内的材料参数进行了标定。该模型作为用户子程序在商业有限元软件ANSYS中实现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Metallien virumismurron ja virumisväsymisen mallintaminen

This article deals with modelling of creep fracture and fatigue of metals. A short description of the physical mechanisms of creep phenomena is given. Developed thermodynamically consistent material model is described in detail. The material parameters are calibrated for the 7CrMoVTiB10-10 steel in the temperature range 500-600 oC. The model is implemented as a user subroutine in the commercial finite element code ANSYS.

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