|
Advances in Aircraft and Spacecraft Science Volume 9, Number 1, January 2022 , pages 69-93 DOI: https://doi.org/10.12989/aas.2022.9.1.069 |
||
|
Isogeometric analysis of FG polymer nanocomposite plates reinforced with reduced graphene oxide using MCST |
||
Amir Farzam and Behrooz Hassani
|
||
| Abstract | ||
|
Reduced graphene oxide (rGO) is one of the derivatives of graphene, which has drawn some experimental research interests in recent years however, numerical research studying the mechanical behaviors of composites made of rGO has not been taken into consideration yet. The objective of this research is to investigate the buckling, and free vibration of functionally graded reduced graphene oxide reinforced nanocomposite (FG rGORC) plates employing isogeometric analysis (IGA). The effective Young's modulus of rGORC is determined based on the Halpin-Tsai model. Four different FG distribution types of rGO are considered varying across plate thickness. Besides, the refined plate theory is used based on Reddy's third-order function. To capture the size effect, modified couple stress theory (MCST) is employed. A comprehensive study is provided examining the effect of various parameters including rGO weight fraction, FG distribution types, boundary conditions, material length scale parameter, etc. Our obtained results show that the addition of only 1% of uniformly distributed rGO into epoxy plates leads to the fundamental frequency and critical buckling load 18% and 39% higher than those of pure epoxy plates, respectively. | ||
| Key Words | ||
|
buckling; free vibration; Isogeometric Analysis (IGA); Modified Couple Stress Theory (MCST); Reduced Graphene Oxide (rGO) | ||
| Address | ||
| Amir Farzam: Department of Civil Engineering, Ferdowsi University of Mashhad, Mashhad, Iran; Department of Aerospace and Ocean Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA Behrooz Hassani: Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran | ||
