An efficient mesh-free approach for the determination of stresses intensity factors

Elmhaia, Oussama; Belaasilia, Youssef; Askour, Omar; Braikat, Bouazza; Damil, Noureddine

doi:10.1016/j.enganabound.2021.08.001

Cited by 10 publications

(1 citation statement)

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“…There have been several works that have focused on simulating the properties and behavior of graphene oxide powder (GOP) composite structures. These simulations are often performed using computational methods such as molecular dynamics (MD), 9,10 finite element analysis (FEA), 11,12 meshless methods [13][14][15][16][17] and analytical solution. 18,19 One area of focus in these simulations is on understanding the behavior of the graphene oxide powder within the composite material.…”

Section: Introduction and Noveltymentioning

confidence: 99%

Radial point interpolation‐Chebychev method with asymptotic numerical method for nonlinear buckling analysis of graphene oxide powder‐reinforced composite beams

Askour,

Rammane,

Mesmoudi

et al. 2024

Numerical Meth Engineering

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SummaryThis study aims to analyze the buckling and post‐buckling behaviors of multilayer nanocomposite beams reinforced with graphene oxide powders (GOPs) at low concentrations. The GOPs are randomly oriented and evenly distributed throughout the composite layers, with their weight fraction varying in the thickness direction. The Halpin‐Tsai model is employed to estimate each layer's effective material properties. The nonlinear governing equations for the FG‐GOPRC beam are derived based on the first‐order shear deformation beam theory, and a nonlinear algebraic system is formulated using the principle of potential energy. In this research, a comprehensive parametric analysis is conducted to examine the influence of various factors on the buckling and post‐buckling behaviors of the composite beams. These factors include the distribution pattern and weight fraction of graphene platelets (GPLs) nanofillers, as well as the geometry, size, slenderness ratio, and boundary conditions of the beams. Through the analysis, the study highlights the significant strengthening effect of these factors on the buckling and post‐buckling performance of the composite beams. The findings from this investigation contribute to a deeper understanding of the behavior of multilayer nanocomposite beams reinforced with GOPs. This knowledge can be valuable in designing and optimizing of composite structures for enhanced buckling resistance and post‐buckling performance.

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