Effect of Center Crack on Mechanical Properties of Graphene

• DOI: 10.4028/www.scientific.net/jnanor.55.22
• Publication Date: 2018-11-08T14:37:51Z
• Authors: Mohsen Motamedi; Amin Esfandiarpour
• Keywords: Tension (geology)

Graphene is a thin sheet with special properties and complicated mechanical behavior. It’s important to study graphene experimentally theoretically. Stone–Wales defects, cracks atom vacancy are popular defects in carbon allotropes especially graphene. In this paper, effect of center on was discussed. At first, non-defected obtained using molecular dynamics simulation. Comparing result theoretical experimental studies showing good agreements proofing the results. Then, 8 different were considered sheets. Stress-strain curves defected sheets tension strain rates plotted. The results showed that increasing crack length lead decreasing Young’s modulus from 870GPa 670GPa. Also, fracture occurred less tensile strain. following, structural mechanics method used simulate cracked agreement between two methods.