Aerospace Engineering

Analysis of quadrilateral plate element and thermal stress based on the enhanced Reddy′s theory

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  • 1.Faculty of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136;
    2.Key Laboratory of Liaoning Province for Composite Structural Analysis of Aerocraft and Simulation, Shenyang 110136

Received date: 2013-06-18

Abstract

Based on the enhanced Reddy′s theory, the four-node quadrilateral plate element is proposed for the analysis of laminated composite plates subjected to thermal loads.Although transverse normal deformation is introduced in the proposed theory, the number of displacement variables is the same as that in the classical Reddy′s theory.The four-node quadrilateral plate element satisfies the requirement of C1 continuity conditions at adjacent elements.Numerical results show that the four-node quadrilateral plate element based on the enhanced Reddy′s theory can accurately analyze the thermal expansion problems of laminated composite plates, while the classical Reddy′s theory is less accurate.

Cite this article

WU Zhen, LIN Kun . Analysis of quadrilateral plate element and thermal stress based on the enhanced Reddy′s theory[J]. Journal of Shenyang Aerospace University, 2013 , 30(5) : 21 -26 . DOI: 10.3969/j.issn.2095-1248.2013.05.005

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