Numerical and Experimental Investigation of the Burst Resistance of Glass-Fiber Thermoplastic Composite Pipes under Internal Pressure

Experimental tests and numerical studies were performed to investigate the burst performance of thermoplastic composite pipes (TCPs) under internal pressure. A progressive damage model is established to predict the burst behavior of TCPs, in which different failure criteria and the damage evolution of a composite material are considered and directly incorporated into the ABAQUS with a user-defined UMAT subroutine. A series of burst tests on TCPs with different numbers of reinforced layers were carried out, and experimental results were in good agreement with the corresponding numerical predictions. In addition, based on the adaptive progressive damage model, a parametric study into winding angles of TCPs with eight reinforced layers is conducted to evaluate their burst performance.