Curvature effects in the buckling of symmetrically-laminated rectangular plates with transverse shear deformation |
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| Affiliation: | 1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China;2. Chongqing Key Laboratory of Heterogeneous Material Mechanics, College of Aerospace Engineering, Chongqing University, Chongqing 400044, China;3. College of Mechanical Engineering and Automation, Chongqing Industry Polytechnic College, Chongqing 401120, China;4. High School Affiliated to Southwest University, Chongqing 400045, China;1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China;2. College of Aerospace Engineering, Chongqing University, Chongqing 400044, China;3. State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China;4. Hebei Key Laboratory of Mechanics of Intelligent Materials and Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China;2. International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China;3. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China;4. School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, PR China;5. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, PR China;1. Groupe de Physique des Matériaux, Normandie Univ, UNIROUEN, INSA Rouen, CNRS, France;2. Laboratoire de Mécanique de Normandie EA 3828 - INSA Rouen, Avenue de l’Université, 76801 Saint Etienne du Rouvray Cedex, France;3. ENI Sfax – Laboratory of Mechanics, Modelling and Production, Route Soukra, 3038 Sfax, Tunisia |
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| Abstract: | ![]()
It is shown that the effect of stress discontinuities from ply-to-ply must be taken into account when curvature terms are included along with shear deformation in the buckling analysis of rectangular, symmetrically-laminated plates. Such ply-stress discontinuities lead to curvature terms in the governing equations which differ considerably from those derived for homogeneous plates. Critical buckling loads are determined for orthotropic laminates subjected to biaxial inplane loading and for cylindrical bending of anisotropic plates subjected to uniaxial compression loading. Simply-supported boundary conditions are considered in conjunction with the rectangular, orthotropic laminate, while simply-supported and clamped boundaries are considered for the case of cylindrical bending of anisotropic plates. Numerical results indicate that the curvature terms have little effect on critical buckling loads for the laminates investigated. The effect of transverse shear deformation is shown to depend on the degree of boundary constraint, laminate stacking geometry, and inplane load ratio. |
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