RESEARCH ON THE FATIGUE LIFE PREDICTION OF COMPOSITE VESSEL UNDER MULITA-AXIAL LOADING

Abstract

Abstract: There are obvious disadvantages in the ASME pressure vessel code, which is used to calculate the fatigue life of cylinders by the adoption of equivalent strain method, because it cannot take account of the multi-axial non-proportional loading effect. This paper studies the multi-axial low-cycle fatigue life of composite cylinders by adopting the corrected Brown-Miller algorithm as well as the effect of autofrettage pressure, metal liner thickness and single layer thickness on the composite cylinders′ fatigue life, and gives a method for increasing the composite cylinders′ fatigue life.

Key words: composite cylinder, multi-axial fatigue, fatigue life prediction, finite element method

CLC Number:

TB332

HUANG Qi-zhong, ZHENG Jin-yang, HU Jun, REN Ming-fa. RESEARCH ON THE FATIGUE LIFE PREDICTION OF COMPOSITE VESSEL UNDER MULITA-AXIAL LOADING[J]. Fiber Reinforced Plastics/Composites, 2016, 0(11): 39-45.

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