Influence of the rolling of contact pads on crack initiation in fretting fatigue tests

被引：7

作者：

Erena, Diego ^{[1
]}

Martin, Vicente ^{[1
]}

Vazquez, Jesus ^{[1
]}

Navarro, Carlos ^{[1
]}

机构：

[1] Univ Seville, Escuela Tecn Super Ingenieros, Dept Ingn Mecan & Fabricac, Camino Descubrimientos S-N, Seville 41092, Spain

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2022年 / 163卷

关键词：

Fretting fatigue; Rolling; Fatigue crack initiation; Crack path; STRESS-FIELD; LIFE;

D O I：

10.1016/j.ijfatigue.2022.107087

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This work performs a detailed analysis of the cracks obtained in fretting fatigue tests with cylindrical contact in the presence of a small oscillatory rolling of the contact pad. To do so, fretting fatigue tests have been carried out. Preliminary observations indicate that the contact area is larger than the theoretical one according to Hertz's theory. This could mean that, due to the contact geometry and the stiffness of the test setup, rolling of the contact pad is occurring during tests. To reproduce this phenomenon, a 2D numerical model is developed. The results are compared with actual crack profile measurements.

引用

页数：10

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