The Mechanical and Fracture Property of HDPE-Experiment Result Combined with Simulation

Abstract: The aim of this work is the evaluation of different specimen dimensions and crack length on the mechanical properties of HDPE (high quality density polyethylene) which it is often used in the packing industry. Two mother shape specimens are chosen and one is dog-bone shaped specimen, the other is shear specimen for studying shear damage. A series of experiments were processed and results show that fracture initiation in HDPE specimen is sensitive to the size of centre circled and pre-crack. A corresponding numerical simulation is calculated by ABAQUS explicit and the corresponding model in numerical simulation was chosen and result rather good match with shear tests. In addition to tensile experiment, the microscope analysis was operated to observe the fracture surface of specimen with scanning electron microscope. In application section, bottle cap opening study was carried out based on the numerical and experimental results.