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Journal of Korean Society for Quality Management > Volume 20(2); 1992 > Article
Journal of Korean Society for Quality Management 1992;20(2): 21-.
A Simplified Fatigue-Damage Model for the Comparison of the Randomness in Load and Strength
Ja-Hang Gu1, Jung-Sun Jang2, Won-Jung Kim2
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ABSTRACT
The only property of the random stresses to affect the life length are their damage amount and are independent of the especial realization in stress case. This paper shows the result is discussed that the randomness of the life length is caused by the randomness of the strength rather than by the randomness of the stress when the load is a random function and the strength is random as well. This special model is well-suited model for comparative calculations since it connects fatigue life for random stresses to fatigue life for periodically curve loads, which is usually measured in experiments.
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