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Journal of Sandwich Structures and Materials
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A New Partial Finite Element Model for Statics of Sandwich Plates

Tarun Kant

Department of Civil Engineering, Indian Institute of Technology Bombay Powai, Mumbai - 400 076, India, tkant{at}civil.iitb.ac.in

Sandeep S. Pendhari

Department of Civil Engineering, Indian Institute of Technology Bombay Powai, Mumbai - 400 076, India

Yogesh M. Desai

Department of Civil Engineering, Indian Institute of Technology Bombay Powai, Mumbai - 400 076, India

A new partial discretization formulation with four-noded bi-linear finite elements (FEs) has been developed in this study for flexural analysis of sandwich plates. Partial discretization results in solution of a two-point boundary value problem (BVP) governed by a system of coupled first-order ordinary differential equations (ODEs). Mixed degrees of freedom, displacements (u, v, w), and transverse stresses ({tau}xz, {tau}yz, {sigma}z) are the dependent variables and thus continuity of transverse stresses and displacements are implicitly enforced in the present formulation. Numerical investigations on symmetric and unsymmetric sandwich plates are performed and presented, involving both validation and solution of new problems.

Key Words: sandwich • partial finite element • boundary value problem • numerical integration algorithm.

Journal of Sandwich Structures and Materials, Vol. 9, No. 5, 487-520 (2007)
DOI: 10.1177/1099636207073465
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