Multiparametric sensitivity analysis of multilayered filament-wound cylinder under internal pressure

In this study, parametric sensitivity was assessed based on a theoretical model of a composite cylinder under internal pressure. By varying the fiber volume content, number of layers, wound angle, internal pressure, and thickness of prepreg, the response objects of stresses and displacement were achieved. Besides, a global and local sensitivity analysis of objectives was conducted under different stacking sequences. The results show that the input variables exhibit different levels of influence with the change in targets. Moreover, a stronger response of objectives is caused by some variables selected in a special range.