First-Ply failure optimization strength of laminated composite pressure vessels

Abstract

Strengths of laminated composite pressure vessels are studied via both analytical and mathematical approaches. An Axis-symmetric finite element model of graphite/epoxy laminate pressure vessel is established by ANSYS finite element software. Analytical techniques are presented to determine the first-ply failure of laminated composite pressure vessels with different lamination arrangements. A solution algorithm is proposed to investigate the progressive damage and failure properties of composite Pressure vessel with increasing internal pressure. The maximum Principal stress, are validated with analytical and Mathematical for verification of algorithm. The accuracy of the algorithm prediction of first-ply failure strength is verified by the analytical data by ANSYS software.