A Critical Investigation On The Nature Of Material Dependency Of Elastic-Plastic Contact Behavior

机译：弹塑性接触行为的物质依赖性质的批判性研究

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This work attempts to make an investigation on the nature of material dependency of elastic-plastic contact behavior through a more accurate contact analysis between a deformable sphere and a rigid flat by finite element method. Analysis is carried out beyond elastic limit, till the inception of plasticity for various materials with different radii. It is found those materials with Young's modulus to yield stress (EAT) ratio less than 300 show strikingly different contact phenomena. Equation for hardness in terms of E/Y ratio for these materials is presented. A proposal for fixing the point of attaining fully plastic state is suggested. Existing disagreement over the dependency of hardness on material properties is critically examined.

机译：这项工作试图通过有限元方法对可变形球体与刚性平面之间的接触进行更精确的分析，从而研究弹塑性接触行为对材料的依赖性。分析超出了弹性极限，直到对具有不同半径的各种材料开始可塑性为止。发现那些杨氏模量与屈服应力（EAT）之比小于300的材料表现出截然不同的接触现象。给出了以这些材料的E / Y比表示的硬度方程。提出了确定达到完全可塑性状态的建议。严格检查了关于硬度对材料性能的依赖性的现有分歧。

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《American Society of Mechanical Engineers(ASME)/Society of Tribologists and Lubrication Engineers(STLE) International Joint Tribology Conference; 20071022-24; San Diego,CA(US)》|2007年|P.148|共1页
会议地点 San DiegoCA(US)
作者
R.MALAYALAMURTHI; R.MARAPPAN;
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作者单位

Government College of Engineering,Salem-636 011,TN, INDIA;

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原文格式 PDF
正文语种 eng
中图分类机械摩擦、磨损与润滑;
关键词
E:Young's modulus; Y: yield strength; H: hardness; p_m: mean contact pressure (contact load/contactarea); ω: contact interference; ω_c: contact interference at elastic limit;

机译：E：杨氏模量； Y：屈服强度； H：硬度； p_m：平均接触压力（接触载荷/接触面积）；ω：接触干扰；ω_c：弹性极限处的接触干扰;

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A Critical Investigation On The Nature Of Material Dependency Of Elastic-Plastic Contact Behavior

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