Dynamic Fracture of a Semi-Crystalline Bio-Based Polymer Pipe: Effect of Temperature

The influence of temperature on the resistance to rapid crack propagation a semi-crystalline bio-based polymer was studied. experimental results described in this study allow initiate first discussion role viscosity and its link with fracture behaviour heterogeneous microstructure such as semi-crysalline polymer. Dynamic tests pipes were carried out. It would appear that decrease approximately 40℃ relative ambient has no significant average velocity (≈0.6cR), energy surface roughness. On contrary, paths seem vary temperature. difference between amorphous crystalline phase varies significantly function initiation also varies. This seems be reduced by lowering mechanisms cavitation damage plastic flow are increasingly limited (and therefore macromolecular mobility). Crack pipe is more extensive critical. emphasised particular probability material macro-branched decreases.