| Autor: |
Macatangay, Jalen, Hamilton, Brenden W., Strachan, Alejandro |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 7/21/2022, Vol. 132 Issue 3, p1-6, 6p |
| Abstrakt: |
The relaxation of polymers around and below their glass transition temperature is governed by a range of correlated unit processes with a wide range of timescales. The fast deformation rates of shock loading can suppress a significant fraction of these processes resulting in dynamical glass transition in rubbers. In this article, we report the inverse, a transient melting of a glassy polymer under shock loading. The large deviatoric stresses near the shock front induce fast transitions in backbone dihedral angles and a stress relaxation characteristic of polymer melts. This is followed by slower relaxation expected for glasses. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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