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A Suitable Mathematical Model of PET for FEA Drop-Test Analysis


Mohammad kh.Abunawas


Vol. 10  No. 5  pp. 215-219


Attempting the use of finite element analysis ( FEA ) in aiding plastic ? product design has yielded unacceptable results due to the limited knowledge of the material properties. this enigma even found greater pitfall when facing the drop ? test requirement ? which is a dynamic problem, where the mechanical property of the material is time dependent . this paper introduces a suitable mathematical model of material property for drop ? test analysis polyethylene terephthalate ( PET ) , as the popularly plastic used for beverage bottles was selected for this research the proposed mathematical model of PET was tasted physically and digitally and compared with the FEA results the MSC Dytran, as a FEA solver, with our material model gave 1.303 % error of the peak impact force on ground.


PET, FEA, Drop test, bottle