THERMAL BUCKLING FOR LOCAL DELAMINATION NEAR THE SURFACE OFPIEZOELECTRIC COMPOSITE PLATES WITH HONEYCOMB CORE

Abstract

Abstract: In this paper, an investigation is carried out to understand the thermal buckling behavior of local delamination near the surface of laminated piezoelectric composite plates with honeycomb core. The model of piezoelectric composite plates was built. The critical temperatures of laminated plates in the case of local delamination near the surface by making use of the energy principle was calculated. The effect of different factors on thermal buckling by comparing the critical temperatures under different situation was analyzed. It shows that, the different shape of delamination and stacking sequences have impact on critical temperature of thermal buckling. The elliptic delamination has the best stability. Also the critical temperature has a linear variation with electric-field strength. In real application, applying electrical field can prevent the buckling of piezoelectric plates.

Key words: thermal buckling, critical temperature change, honeycomb core, delamination, laminated piezoelectric composite plate

CLC Number:

TB332

WANG Yi-chen, WANG Xi. THERMAL BUCKLING FOR LOCAL DELAMINATION NEAR THE SURFACE OFPIEZOELECTRIC COMPOSITE PLATES WITH HONEYCOMB CORE[J]. Fiber Reinforced Plastics/Composites, 2016, 0(5): 30-35.

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