A Numerical Approach Of Elasto-plastic Critical Energy Release Rate (jic) Of Hdpe-100 Pipes

Résumé: Today, the use of high density polyethylene (HDPE) pipes dominates underground fluid transport sector especially when replacing traditional and costly steel pipes. The failure of polyethylene pipes can occur due to a variety of factors applied external loads, environmental stress cracking, thermal gradients, method of manufacture and service conditions. It is essential to have as complete an understanding as possible of the HDPE fracture behavior. This work is focused to quantify fracture energies of high resistant polyethylene (PE) pipe by finite element method using the J-integral (JIC; kJ/m2) fracture criterion for different length of notch. The initiation of a crack is described by a critical value, JIC and a critical displacement. For each crack depth corresponds a critical displacement.

Publié dans la revue: Synthèse