The outstanding strength-to-weight ratio of para-aramid fibers, such as Kevlar and Twaron, can be largely attributed to their high content of p-phenylene terephthalamides (PPTA) crystals. Here, we perform non-adiabatic shock loading on large PPTA crystal models along different low-index crystallographic directions using reactive molecular-dynamics simulations. Results reveal an anisotropic shock response displaying elastic, plastic, and phase transformation from crystalline to para-crystalline configuration. The simulation results provide an atomistic view on the effects of shock in para-aramid synthetic fibers.
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Presenters
Subodh Tiwari
University of Southern California
Univ of Southern California
Authors
Subodh Tiwari
University of Southern California
Univ of Southern California
Sungwook Hong
Univ of Southern California
Mork Family Department of Chemical Engineering and Materials Science, Univ of Southern California
University of Southern California
Paulo Branicio
Univ of Southern California
Rajiv Kalia
Univ of Southern California
Physics & Astronomy, University of Southern California
University of Southern California
Mork Family Department of Chemical Engineering and Materials Science, Univ of Southern California
Collaboratory of Advanced Computing and Simulations, Univ of Southern California
Collaboratory for Advanced Computing and Simulations, University of Southern California
Physics, University of Southern California
Aiichiro Nakano
Univ of Southern California
Physics & Astronomy, University of Southern California
University of Southern California
Mork Family Department of Chemical Engineering and Materials Science, Univ of Southern California
Collaboratory of Advanced Computing and Simulations, Univ of Southern California
Physics, University of Southern California
Priya Vashishta
Univ of Southern California
Physics & Astronomy, University of Southern California
University of Southern California
Mork Family Department of Chemical Engineering and Materials Science, Univ of Southern California
Collaboratory of Advanced Computing and Simulations, Univ of Southern California
Collaboratory for Advanced Computing and Simulations, University of Southern California
