无量纲量
材料科学
接触力学
接触面积
有限元法
接触分析
航程(航空)
机械
可塑性
复合材料
结构工程
物理
工程类
出处
期刊:Journal of Applied Mechanics
[ASME International]
日期:2002-08-16
卷期号:69 (5): 657-662
被引量:874
摘要
An elastic-plastic finite element model for the frictionless contact of a deformable sphere pressed by a rigid flat is presented. The evolution of the elastic-plastic contact with increasing interference is analyzed revealing three distinct stages that range from fully elastic through elastic-plastic to fully plastic contact interface. The model provides dimensionless expressions for the contact load, contact area, and mean contact pressure, covering a large range of interference values from yielding inception to fully plastic regime of the spherical contact zone. Comparison with previous elastic-plastic models that were based on some arbitrary assumptions is made showing large differences.
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