Reliability Model of Fatigue Damage Evolvement of Semi-Rigid Road Base Material

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The fatigue damage evolving model of brittle materials for one-dimension stress status, as the critical damage DC unequal to 1, was established with damage mechanics theory. And also a new fatigue damage evolving reliability model was established based on the supposition of the fatigue life obeying the normal distribution ,which was verified by fatigue experiments taking the semi-rigid base material for example ,and the propagate life can be ignored .The value of damage variable Dp corresponding to any given probability p can be effectively calculated ,the results show that D was a random variable, the method that to determine the damage of materials and to estimate the security of structures with the damage value D calculated by traditional determinate damage evolving model may cause a mistake that the damage could be evaluated out as a much smaller value and the potential danger of structures could be completely covered up.

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Periodical:

Edited by:

Xingang Zhou, Mingjin Chu, Jinming Liu, Shuying Qu and Haitao Fan

Pages:

1900-1903

Citation:

S. Y. Wang et al., "Reliability Model of Fatigue Damage Evolvement of Semi-Rigid Road Base Material", Applied Mechanics and Materials, Vols. 166-169, pp. 1900-1903, 2012

Online since:

May 2012

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$38.00

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