Temperature and strain-rate dependent fracture strength of graphene

H. Zhao, N. R. Aluru

Research output: Contribution to journalArticlepeer-review

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 languageEnglish (US)
Article number064321
JournalJournal of Applied Physics
Volume108
Issue number6
DOIs
StatePublished - Sep 15 2010

ASJC Scopus subject areas

  • General Physics and Astronomy

Fingerprint

Dive into the research topics of 'Temperature and strain-rate dependent fracture strength of graphene'. Together they form a unique fingerprint.

Cite this