SIMULATION RESEARCH ON IMPACT FAILURE OF PLASTIC MATERIAL FOR AIR CONDITIONING

The mechanical behavior of a plastic material ABS-121H for air conditioner in drop conditions was studied. Based on quasi-static tensile tests, dynamic tensile tests and failure tests, the elastoplastic model of material under different strain rates and the GISSMO failure model of LS-DYNA software were established. In addition, the accuracy of elastoplastic model and failure model were verified by air conditioner components tests and simulations. The results indicate that the elastoplastic constitutive model of the material which considers the strain rate effect can accurately reflect the acceleration and stiffness of the structure. The GISSMO failure model can precisely predict the failure behavior of the material under complex stress state. This study provides a promising approach for the establishment of material models for air conditioner drop simulation.