Mechanical characterization and postbuckling behavior of carbon nanotube–carbon fiber reinforced nanocomposite laminate

The aim of this study is to investigate the effect of carbon nanotube reinforcement in conventional carbon fiber reinforced composite on the buckling and postbuckling behavior of the laminated nanocomposite plate made of carbon nanotube and carbon fiber reinforcements in a matrix material. The method of representative volume element is utilized to perform the multiscale modeling of the problem. Initially, Boolean-based random sequential adsorption algorithm is utilized to model a nanoscale representative volume element of nanocomposite material to mimic the effect of randomly distributed (i.e. having random orientation and position) carbon nanotubes in a matrix material. After estimating the elastic properties of the nanocomposite material using representative volume element, another microscale representative volume element of carbon fiber reinforced in the nanocomposite (i.e. carbon nanotube reinforced matrix material) is modeled to evaluate the stiffness properties of the lamina formed of carbon nanotube–carbon fiber reinforced nanocomposite. The laminae are further stacked in the sequence of (45°/−45°/−45°/45°) to model a laminate. Thereafter, the evaluated stiffness properties