Numerical Flexural Strength Analysis of Thermally Stressed Delaminated Composite Structure under Sinusoidal Loading

Abstract

In this article, we investigate the thermomechanical deflection characteristics of the debonded composite plate structure using an isoparametric type of higher-order finite element model. The present mid-plane kinematics model mainly obsoletes the use of shear correction factor as in the other lower-order theories. The separation between the adjacent layers is modelled via the sub-laminate technique and the intermittent continuity conditions imposed to avoid the mathematical ill conditions. The governing equation of equilibrium of the damage plate structure under the combined state of loading are obtained using the variational principle and solved numerically to compute the defection values.