Review and Analysis of Cumulative-Fatigue-Damage Theories
ResearchPublished 1963
ResearchPublished 1963
A presentation of the fundamental concepts of cumulative damage and an evaluation, based on Miner's theory, of several other current theories on cumulative fatigue damage. Study shows that the value of such theoretical work in predicting satisfactory fatigue life or designing flight structures is determined, in part, by certain key assumptions concerning the occurrence of fatigue damage at different stress amplitudes. The results of this study should be useful in relating, for design use, spectrum-test results and cumulative-damage theories. A presentation of the fundamental concepts of cumulative damage and an evaluation, based on Miner's theory, of several other current theories on cumulative fatigue damage. Study shows that the value of such theoretical work in predicting satisfactory fatigue life or designing flight structures is determined, in part, by certain key assumptions concerning the occurrence of fatigue damage at different stress amplitudes. The results of this study should be useful in relating, for design use, spectrum-test results and cumulative-damage theories.
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