• 文献标题:   Investigating the effects of reduced graphene oxide additive on the tensile strength of adhesively bonded joints at different extension rates
  • 文献类型:   Article
  • 作  者:   SADIGH MAS, MARAMI G
  • 作者关键词:   reduced graphene oxide, adhesively bonded joint, druckerprager model
  • 出版物名称:   MATERIALS DESIGN
  • ISSN:   0264-1275 EI 1873-4197
  • 通讯作者地址:   Azarbaijan Shahid Madani Univ
  • 被引频次:   13
  • DOI:   10.1016/j.matdes.2015.12.006
  • 出版年:   2016

▎ 摘  要

This study presents a new method of increasing the strength of adhesively bonded joints at different extension rates by applying a small fraction of Reduced Graphene Oxide (RGO) which has been produced using fast and fully scalable method. Tensile and compression tests were carried out on bulk specimens at different extension rates. This was found that including 0.5 wt.% RGO to the epoxy based adhesive increases the ultimate tensile and compressive strength of the bulk specimens by 30% and 26% at the strain rate of 5e-4. Also, the joints with graphene additives exhibit 27%, 20%, and 19% higher ultimate strength than the joints which were bonded with neat adhesive at the strain rates of 5e-4, 0.02 and 0.05, respectively. Comparing the numerical and experimental results shows that Exponent Drucker-Prager model can successfully simulate the plastic behavior of the joints at different extension rates. (C) 2015 Elsevier Ltd. All rights reserved.