DJ-integral range estimation for fatigue crack growth rate description
The paper presents an equation for fatigue crack growth rate description taking into account the *DJ-integral range, which was verified experimentally for variable bending. Plane, notched specimens were tested under unilaterally restrained bending for different values of stress ratio R. The results...
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| Published in | International journal of fatigue Vol. 26; no. 2; pp. 135 - 140 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
01.02.2004
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| Online Access | Get full text |
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| Summary: | The paper presents an equation for fatigue crack growth rate description taking into account the *DJ-integral range, which was verified experimentally for variable bending. Plane, notched specimens were tested under unilaterally restrained bending for different values of stress ratio R. The results of tests and numerical calculations were presented as characteristics of fatigue crack growth rate. It has been shown that in the case of a change of stress ratio from R = - 1.0 to R = 0.0, the crack rate increases twice for 10HNAP steel and five times for 18G2A steel. The empirical formula presented in the paper describes well the test results of fatigue crack rate in the steels. |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 content type line 23 ObjectType-Feature-1 |
| ISSN: | 0142-1123 |