Accession Number : ADA131884

Title :   Three-Dimensional Analysis of Composite Plates with Material Nonlinearity.

Descriptive Note : Interim rept.,

Corporate Author : OKLAHOMA UNIV NORMAN

Personal Author(s) : Kuppusamy,T ; Nanda,A ; Reddy,J N

PDF Url : ADA131884

Report Date : Aug 1983

Pagination or Media Count : 24

Abstract : The study deals with a fully three-dimensional analysis of laminated composite plates accounting for material nonlinearity. The finite-element method with trilinear interpolation of the three displacements is used to model layers of the laminate (both in the plane of laminae and through the thickness of the laminate). The modified Romberg-Osgood material constitutive relations is used to update the principal moduli in the plane of the laminate. The elastic-plastic model with Hill's criteria for anisotropic criteria is also used to analyze laminates. The shear deformable plate-theory element is also used in the study. (Author)

Descriptors :   *Mathematical analysis, Finite element analysis, Composite materials, Composite structures, Plates, Laminates, Elastic properties, Plastic deformation, Planar structures, Displacement, Three dimensional, Anisotropy, Stress strain relations, Thickness, Matrices(Mathematics), Equations, Mathematical models, Nonlinear analysis, Materials

Subject Categories : Laminates and Composite Materials
      Theoretical Mathematics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE