A numerical study of the normal loading–unloading contact behaviors considering yield plateau and strain hardening

IF 2.2 3区工程技术 Q2 MECHANICS

Archive of Applied Mechanics Pub Date : 2025-01-21 DOI:10.1007/s00419-025-02761-3

Juncheng Luo, Jianhua Liu, Huanxiong Xia, Xiaohui Ao, Jian Zhang, Xuerui Zhang, Hui Zhang, Xin Liu

引用次数: 0

Abstract

Loading–unloading is a ubiquitous phenomenon in engineering applications and an enduring topic in contact mechanics. Yield plateau and strain hardening are essential for material behaviors, but they have not been well considered in contact mechanics. This work developed a three-phase constitutive model to accurately describe the elastoplastic contact behaviors considering both yield plateau and strain hardening, merging the elastic-perfectly plastic and power-law hardening behaviors. The significance of the yield plateau and strain hardening was emphasized, and new empirical formulations of dimensionless contact load, area, and residual interference were presented, expanding the present knowledge of the elastoplastic contact problem.

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考虑屈服平台和应变硬化的正常加卸载接触行为的数值研究

加载-卸载是工程应用中普遍存在的现象，也是接触力学中一个经久不衰的课题。屈服平台和应变硬化是材料行为的必要条件，但在接触力学中尚未得到很好的考虑。本文建立了一个考虑屈服平台和应变硬化的三相本构模型，以准确描述弹塑性接触行为，融合了弹塑性和幂律硬化行为。强调了屈服平台和应变硬化的重要性，提出了新的无因次接触载荷、面积和残余干涉的经验公式，扩展了弹塑性接触问题的现有知识。

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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来源期刊

Archive of Applied Mechanics 物理-力学

CiteScore

4.40

自引率

10.70%

发文量

234

审稿时长

4-8 weeks

期刊介绍： Archive of Applied Mechanics serves as a platform to communicate original research of scholarly value in all branches of theoretical and applied mechanics, i.e., in solid and fluid mechanics, dynamics and vibrations. It focuses on continuum mechanics in general, structural mechanics, biomechanics, micro- and nano-mechanics as well as hydrodynamics. In particular, the following topics are emphasised: thermodynamics of materials, material modeling, multi-physics, mechanical properties of materials, homogenisation, phase transitions, fracture and damage mechanics, vibration, wave propagation experimental mechanics as well as machine learning techniques in the context of applied mechanics.