Inelastic Stability Analysis Of Uniaxially Compressed Flat Rectangular Isotropic CCSS Plate

Abstract

This study investigates the inelastic stability of a thin flat rectangular isotropic plate subjected to uniform uniaxial compressive loads using Taylor-Maclaurin series formulated deflection function. The plate has clamped and simply supported edges in both characteristic directions (CCSS boundary conditions). The governing equation is derived using a deformation plasticity theory and a work principle. Values of the plate buckling coefficient are calculated for aspect ratios from 0.1 to 2.0 at intervals of 0.1 . The results compared favourably with the elastic stability values and the percentage differences ranged from − 0.353% to − 7.427% . Therefore, the theoretical approach proposed in this study is recommended for the inelastic stability analysis of thin flat rectangular isotropic plates under uniform in-plane compression.

Keywords

• deflection function
• plastic buckling
• rectangular plate
• taylor’s series
• work principle