3-DIMENSIONAL ANALYSIS OF THERMAL EFFECTS ON SURFACE CRACK-PROPAGATION IN ROLLING-CONTACT

被引：14

作者：

GOSHIMA, T

HANSON, MT

KEER, LM

机构：

[1] Department of Civil Engineering Northwestern, University Evans ton, Illinois

[2] Department of Engineering Mechanics, University of Kentucky, Lexington, KY

[3] Department of Civil Engineering, Northwestern University, Evanston, IL

来源：

JOURNAL OF THERMAL STRESSES | 1990年 / 13卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/01495739008927036

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This analysis investigates the thermal effects on crack growth in rolling contact fatigue surface pitting. Here the prepitting crack is modeled as an inclined planar surface crack in a three-dimensional half-space. Rolling contact is simulated as a line load with both normal and shear components, moving with constant velocity over the surface of the half-space. A frictional heat input in the contact region is included to incorporate the thermal loading. The body force method for three-dimensional fracture mechanics is utilized to determine the three modes of stress intensity factors along the crack contour, which quantify crack growth. Numerical results for the stress intensity factors over a loading cycle are given for a semicircular crack. The effects of two thermal parameters, one representing heat input strength and the other representing velocity of the contact region, on the stress intensity factors are determined. © 1990 Taylor & Francis Group, LLC.

引用

页码：237 / 261

页数：25

共 34 条

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[10]

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