Temperature and strain-rate dependent fracture strength of graphene

H. Zhao, N. R. Aluru

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
Article number064321
JournalJournal of Applied Physics
Issue number6
StatePublished - Sep 15 2010

ASJC Scopus subject areas

  • General Physics and Astronomy


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