Mechanisms of Shock Dissipation in Semicrystalline Polyethylene.

ABSTRACT: Semicrystalline polymers are lightweight, multiphase materials that exhibit attractive shock dissipation characteristics and have potential applications as protective armor for people and equipment. For shocks of 10 GPa or less, we analyzed various mechanisms for the storage and dissipation of shock wave energy in a realistic, united atom (UA) model of semicrystalline polyethylene. Systems characterized by different levels of crystallinity were simulated using equilibrium molecular dynamics with a Hugoniostat to ensure that the resulting states conform to the Rankine-Hugoniot conditions. To determine the role of structural rearrangements, order parameters and configuration time series were collected during the course of the shock simulations. We conclude that the major mechanisms responsib

SUBMITTER: Mikhail JP 

PROVIDER: S-EPMC10650820 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature