2024-T3铝合金热力学效应下裂纹尖端残余应力的产生:数值模拟

IF 0.6 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Annales De Chimie-science Des Materiaux Pub Date : 2020-03-15 DOI:10.18280/acsm.440108

Tayeb Kebir, M. Benguediab, M. Bouamama, Zine Harchouche

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引用次数: 1

摘要

由制造产生的残余应力存在于机械部件中，没有任何外力，但也可以通过各种程序产生。这些应力是与塑性应变的非均质性有关的变形不相容的结果。因此，随着裂纹在残余应力场中的扩展，残余应力的分布发生了变化。本文利用Ansys软件对裂纹沿扩展方向的残余热应力进行了数值模拟。这种数值方法使我们能够评估裂纹尖端塑性应变引起的压缩残余应力的热力学松弛。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Residual Stress Generation at Crack Tip under Thermomechanical Effects of Aluminum Alloy 2024-T3: Numerical Modelisation

Received: 2 November 2019 Accepted: 26 December 2019 The residual stresses which result from the manufacture are present in the mechanical part with absence of any external force, but also they can be generated by various procedures. These stresses are the result of incompatibilities of deformation related to the heterogeneity of the plastic strain. Therefore, as the crack propagated in the residual stress field, the distribution of residual stresses is changed. The purpose of this work is to generate the thermomechanical residual stresses on along direction of crack propagation using a numerical simulation by Ansys software. This numerical approach allows us to evaluate the thermomechanical relaxation of the compressive residual stresses induced by plastic strain at crack tip.

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来源期刊

Annales De Chimie-science Des Materiaux 工程技术-材料科学：综合

CiteScore

1.70

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： The ACSM is concerning the cutting-edge innovations in solid material science. The journal covers a broad spectrum of scientific fields, ranging all the way from metallurgy, semiconductors, solid mineral compounds, organic macromolecular compounds to composite materials. The editorial board encourages the submission of original papers that deal with all aspects of material science, including but not limited to synthesis and processing, property characterization, reactivity and reaction kinetics, evolution in service, and recycling. The papers should provide new insights into solid materials and make a significant original contribution to knowledge.