Ty. Kam et al., FATIGUE RELIABILITY EVALUATION FOR COMPOSITE LAMINATES VIA A DIRECT NUMERICAL-INTEGRATION TECHNIQUE, International journal of solids and structures, 35(13), 1998, pp. 1411-1423
A direct numerical integration technique for evaluating Fatigue reliab
ility of composite laminates under varying stress amplitudes is presen
ted. A number of cumulative damage models are adopted to construct the
limit state equation for the laminates in the reliability analysis. E
xisting fatigue life distributions of composite laminates under cyclic
stresses of constant amplitude are used in the reliability assessment
of the composite laminates under varying stress amplitudes. The accur
acy of the proposed method in fatigue reliability prediction is then v
erified by experimental Fatigue life data of varying stress amplitudes
. A comparison between the present method and the modified beta-method
is also made to illustrate the suitability of the present method in f
atigue reliability prediction. (C) 1998 Elsevier Science Ltd.