Open AccessStudy on the Failure of PP+EPDM-TD20 Based on the Criterion of GISSMO
Author(s) -
Fu Zhi,
Yongsheng Guo,
Hao Haizhou
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1965/1/012150
Subject(s) - hammer , materials science , structural engineering , fracture (geology) , composite material , stress (linguistics) , engineering , linguistics , philosophy
In this paper, quasi-static and dynamic mechanical experiments or failure experiments were carried out for the PP+EPDM-TD20, which is the main material of a vehicle instrument panel. The elastoplastic model of the material under different strain rates and the GISSMO failure model based on LS-DYNA software had been established. The accuracy of the material elasto-plastic model and the failure model was compared and verified through the convex test and simulation of the head hammer impact on the instrument panel. The results show that the GISSMO failure model considering the strain rate effect and stress state can accurately predict the fracture failure behavior of PP+EPDM-TD20 plastic materials under complex stress states. This research provides reference for the failure prediction of similar plastic parts under impact conditions.