关于Kachanov-Rabotnov连续损伤模型

Q4 Engineering

Rakenteiden Mekaniikka Pub Date : 2020-03-30 DOI:10.23998/rm.82528

H. Askes, J. Hartikainen, K. Kolari, R. Kouhia, T. Saksala, Jani Vilppo

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引用次数: 0

摘要

本文给出了简单现象学Kachanov-Rabotnov连续统损伤本构模型的两个部分互补的表述。这些模型基于一致的热力学公式，使用亥姆霍兹自由能或耗散势的补充形式的适当表达式。讨论了模型的基本特征，并演示了模型在拉伸试验和蠕变问题中的行为。

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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On the Kachanov-Rabotnov continuum damage model

In this paper two partially complementary formulations of the simple phenomenological Kachanov-Rabotnov continuum damage constitutive model are presented. The models are based on a consistent thermodynamic formulation using proper expressions for the Helmholtz free energy or its complementary form of the dissipation potential. Basic features of the models are discussed and the behaviour in tensile test and creep problems is demonstrated.

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来源期刊

Rakenteiden Mekaniikka Engineering-Mechanical Engineering

CiteScore

0.50

自引率

0.00%

发文量

审稿时长

16 weeks