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Abstract:
This report results from a contract tasking University of Portsmouth as follows: The contractor will investigate high cycle fatigue (HCF) effects in structural materials. This work will be a logical follow-on to three previous phases conducted under EOARD contract. In this phase, the contractor will: (1) extend the study of the effect of prior overloads by the employment of larger overload ratios; (2) establish the conditions at which the effects of overloads in the HCF + LCF loadings completely suppress the damage caused by HCF cycles; and (3) extend the analysis of new models to overcome the shortcomings of the Wheeler model to predict the onset of HCF cycle damage.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Final rept. 22 Sep 2000-22 Nov 2001, Phase 4 |
| Pages: |
36 |
| Report Date: |
FEB 2002 |
| Contract Number: |
F61775-00-WE041 |
| Report Number: |
A469104 |
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