Temperature Effect on Stability of Clamped-Clamped Composite Annular Plate with Damages

The paper presents the response of a three-layered annular plate with different damaged laminate facings to the action of the static or dynamic temperature field model. Various damages of laminate, composite facings change the plate structure reaction under the temperature fields. Obtained results indicate practical meaning of analyses in failure diagnostic process. The thermal sensitivity of two kinds of plate structures, undamaged and damaged, offers both new practical and scientific possibilities in evaluation of the plate behavior. The relations between macro-damage, i.e., the buckling of the plate structure and micro-damages of plate layers subjected to temperature gradient, are shown. The numerical solution is proposed as the most effective in examinations of the various transversally symmetrical and asymmetrical plate structures with a different rate of damages. The graphical distribution of changes in values of static and dynamic critical loads illustrate the process of structural damaging during its exploitation. They have practical importance in the evaluation of the structure capacity. The knowledge of the effect of laminate degradation process on plate buckling phenomenon located in thermal environment complements previous investigations and designates complex, multi-parameter problems as having scientifically new elements.

Automated summary

The paper investigates the response of a three-layered annular plate with different damaged laminate facings to static or dynamic temperature fields, highlighting the practical significance of analysis in failure diagnostic processes. The thermal sensitivity of two kinds of plate structures offers new practical and scientific possibilities in evaluating plate behavior, with results showing relationships between macro-damage and micro-damages under temperature gradients. Numerical solutions are proposed as the most effective in examining various transversally symmetrical and asymmetrical plate structures with different damage rates, providing practical importance in evaluating structural capacity and complementing previous investigations on the effect of laminate degradation on plate buckling phenomena in thermal environments.