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A Proposal of Parameter Determination Method in the Residual Strength Degradation Model for the Prediction of Fatigue Life (I)
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 Title & Authors
A Proposal of Parameter Determination Method in the Residual Strength Degradation Model for the Prediction of Fatigue Life (I)
Kim, Sang-Tae; Jang, Seong-Su;
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The static and fatigue tests have been carried out to verify the validity of a generalized residual strength degradation model. And a new method of parameter determination in the model is verified experimentally to account for the effect of tension-compression fatigue loading of spheroidal graphite cast iron. It is shown that the correlation between the experimental results and the theoretical prediction on the statistical distribution of fatigue life by using the proposed method is very reasonable. Furthermore, it is found that the correlation between the theoretical prediction and the experimental results of fatigue life in case of tension-tension fatigue data in composite material appears to be reasonable. Therefore, the proposed method is more adjustable in the determination of the parameter than maximum likelihood method and minimization technique.
Residual Strength Degradation Model;Maximum Likelihood Method;Minimization Technique;Weibull Distribution Function;Equivalent Ultimate Strength;
 Cited by
피로수명예측을 위한 잔류강도 저하모델의 파라미터 결정법 제안(II),김상태;장성수;

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