A Generalization of Cumulative Damage

In the application of various damage accumulation hypotheses to shock and vibration problems, a pattern of results was observed. A plot of allowable response (for the largest of a sequence of excitations) versus the number of excitations in the sequence produced straight lines on log-log paper for e...

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Bibliographic Details
Published in:Journal of basic engineering 1960-06, Vol.82 (2), p.435-440
Main Author: Mains, R. M
Format: Article
Language:English
Online Access:Get full text
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Summary:In the application of various damage accumulation hypotheses to shock and vibration problems, a pattern of results was observed. A plot of allowable response (for the largest of a sequence of excitations) versus the number of excitations in the sequence produced straight lines on log-log paper for each value of damping. It seemed likely that a generalization could be found which would relate the allowable response to the largest excitations with a load-distribution factor, a material-and-structure factor, and the material constants from fatigue tests. One form of this generalization is presented, together with some numerical examples of its use, and a discussion of its possible significance.
ISSN:0098-2202
0021-9223
1528-901X
DOI:10.1115/1.3662612