Discussions on “On the NURBS-based isogeometric analysis for couple stress-based nonlinear instability of PFGM microplates” [Mech. Based Des. Struct. DOI:10.1080/15397734.2020.1853567]

Abstract

In this communication, it is mathematically proved that the modified couple stress theory-based stability trend (buckling-post-buckling) of the size-dependent porous functionally graded (metal-ceramic) shear deformable microplates with fully simply supported edges was wrongly predicted in the aforementioned paper.

Keywords:

• Microplate
• modified couple stress theory
• simply supported edges
• size-dependent stability

Declaration of competing interest

The author declares that he has no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.