The influence of mean stress on fatigue crack propagation in a quenched and tempered alloy steel
- 1 April 1977
- journal article
- research article
- Published by SAGE Publications in The Journal of Strain Analysis for Engineering Design
- Vol. 12 (2) , 81-88
- https://doi.org/10.1243/03093247v122081
Abstract
A series of tests are reported which support the proposal that fatigue crack growth rates are retarded by crack closure at low values of applied mean stress intensity. In particular, the evidence presented indicates that closure occurs most readily at the specimen's free surfaces. This leads to dramatic changes in crack front profile under certain loading conditions.Keywords
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