Contact fatigue and tensile stresses

机译：接触疲劳和拉伸应力

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This work aims at a deeper understanding of spalling type contact fatigue. It is proposed that surface cracks develop due to. surface asperities. Then, the nominal stress field (2D) is locally disturbed by asperity contacts (3D) which give tensile stresses. Crack paths in a fractographic study were found to follow the tensile stress hypothesis. A new test method is presented: Standing Contact Fatigue (SCF). During SCF testing, contact fatigue cracks were formed in casehardened steel (with significant residual compressive stresses). Lubrication was not needed for contact cracking to occur.

机译：这项工作旨在更深入地了解剥落式接触疲劳。建议由于表面裂缝产生。表面粗糙。然后，标称应力场（2D）通过粗糙触点（3D）局部地受到抗拉应力的尖端触点。发现了突变研究中的裂纹路径遵循拉伸应力假设。提出了一种新的测试方法：站立接触疲劳（SCF）。在SCF测试期间，在酪壳硬化钢（具有显着的残余压缩应力）中形成接触疲劳裂缝。不需要润滑来进行接触开裂。

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《International conference on the importance of understanding the fundamentals of the fatigue process in counteracting its effects in engineering components and structures》|1999年||共7页
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M. Olsson;
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中图分类机械试验法;
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1. Contact fatigue initiation and tensile surface stresses at a point asperity which passes an elastohydrodynamic contact [J] . Everitt Carl-Magnus, Alfredsson Bo Tribology International . 2018,第期

机译：在通过弹性流体动力学接触的点粗糙度下接触疲劳起始和拉伸表面应力
2. Modern state of experimentation and modeling in contact fatigue phenomenon: Part I -- contact fatigue. normal and tangential contact and residual stresses. nonmetallic inclusions and lubricant contamination. crack initiation and crack propagation. [J] . Ilya I. Kudish, Kenneth W. Burris Tribology Transactions . 2000,第2期

机译：接触疲劳现象的实验和建模的现代状态：第一部分-接触疲劳。法向和切向接触以及残余应力。非金属夹杂物和润滑剂污染。裂纹萌生和裂纹扩展。
3. Modifications to a fretting-fatigue testing apparatus based upon an analysis of contact stresses at complete and nearly complete contacts [J] . A. Mugadu, D. A. Hills, D. Nowell Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear . 2002,第5a6期

机译：基于对完全和几乎完全接触时的接触应力的分析，对微动疲劳测试设备进行了改进
4. Contact fatigue and tensile stresses [C] . M. Olsson International conference on the importance of understanding the fundamentals of the fatigue process in counteracting its effects in engineering components and structures . 1999

机译：接触疲劳和拉伸应力
5. Wear mechanisms of silicon nitride bearing materials under contact fatigue stresses. [D] . Chen, Zheng. 1995

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7. Contact fatigue initiation and tensile surface stresses at a point asperity which passes an elastohydrodynamic contact [O] . Carl-Magnus Everitt, Bo Alfredsson 2018

机译：通过弹性流体动力学接触的点粗糙接触疲劳起始和拉伸表面应力

Contact fatigue and tensile stresses

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