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Postbuckling Analysis of Thin Plates under Impact Loading  

Kim, Hyeong-Yeol (한국건설기술연구원)
Park, Sun-Kyu (성균관대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.6, no.3, 2002 , pp. 139-149 More about this Journal
Abstract
An explicit direct time integration method based solution algorithm is proposed to predict dynamic postbuckling response of thin plates. Based on the von Karman's plate equations and Marquerre's shallow shell theory, a rectangular plate finite element is formulated and utilized in this study. The element formulation takes into account geometrical nonlinearity and initial deflection of plates. The solution algorithm employs the central difference method. Using the computer program developed by the authors, dynamic postbuckling behavior of elastic thin plates under impact loading is investigated by considering the time variation of load and load duration. The efficiency of the proposed solution algorithm is examined through illustrative numerical examples.
Keywords
thin plate; finite element method; impact load; buckling; postbuckling; dynamic instability;
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