Abstract
We investigate the variation in fracture strength of graphene with temperature, strain rate, and crack length using molecular dynamics (MD) simulations, kinetic analysis of fracture with a nonlinear elastic relation, and the quantized fracture mechanics theory. Young's modulus does not vary significantly with temperature until about 1200 K, beyond which the material becomes softer. Temperature plays a more important role in determining the fracture strength of graphene. Our studies suggest that graphene can be a strong material even, when subjected to variations in temperature, strain rate, and cracks.
| Original language | English (US) |
|---|---|
| Article number | 064321 |
| Journal | Journal of Applied Physics |
| Volume | 108 |
| Issue number | 6 |
| DOIs | |
| State | Published - Sep 15 2010 |
ASJC Scopus subject areas
- Physics and Astronomy(all)