Finite element prediction of stress transfer in graphene nanocomposites: The interface effect

详细信息    查看全文

• 作者：K.N. Spanos ; N.K. Anifantis ; ^{nanif@mech.upatras.gr" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Graphene ; Nanocomposite ; Stress transfer ; Interface ; Finite element analysis (FEA)
• 刊名：Composite Structures
• 出版年：2016
• 出版时间：15 October 2016
• 年：2016
• 卷：154
• 期：Complete
• 页码：269-276
• 全文大小：1336 K

文摘

A micromechanical hybrid finite element approach is implemented in this study, in order to evaluate the stress transfer characteristics in graphene-based nanocomposites. Three-dimensional representative volume elements, consisting of two different parts, have been used during the analysis. The matrix material that is modeled as continuum (solid finite elements), and the graphene sheet that is modeled discretely (spring based elements). Between these two constituents, an interfacial region is taking place, simulated by appropriate stiffness variations, defining a heterogeneous region that affects the stress transfer behavior of the composite. Our simulations show good agreement with existing studies of the open literature and indicate the effect of a number of factors in stress transfer efficiency.