Griffith Criterion for Brittle Fracture in Graphene Yin, Hanqing ; Qi, H. Jerry ; Fan, Feifei ; Zhu, Ting ; Wang, Baolin ; Wei, Yujie Abstract Publication: Nano Letters Pub Date: March 2015 DOI: 10.1021/nl5047686 Bibcode: 2015NanoL..15.1918Y