Accession Number : ADA133761

Title :   Analysis of the Nonlinear Large Deformation Behavior of Composite Cylindrical Shells.

Descriptive Note : Final rept. 30 Jun 81-30 Jun 83,

Corporate Author : GEORGIA INST OF TECH ATLANTA SCHOOL OF ENGINEERING SCIENCE AND MECHANICS

Personal Author(s) : Simitses,George J ; Sheinman,Izhak ; Shaw,Dein

PDF Url : ADA133761

Report Date : Jan 1983

Pagination or Media Count : 88

Abstract : The governing equations for the nonlinear analysis of imperfect, stiffened, laminated, circular, cylindrical, thin shells, subjected to uniform axial compression and torsion, and supported in various ways, are derived and presented. Two types of formulations have been developed; one (w,F-Formulation) is based Donnell-type nonlinear kinematic relations; and the other (u, v, w - formulation) is based on Sanders' -type of nonlinear kinematic relations (small strains, moderate rotations about in-plane axes). A solution methodology is developed and presented. Numerical results are generated for certain special geometries, and these serve as bench marks for the solution scheme. Parametric studies are performed for composite cylinders. The scope of these studies is to assess the effect of geometric imperfections lamina stacking, and length of radius ratio. The solution scheme is also tested by comparing theoretical predictions (critical loads based on the developed methodology) to experimentally obtained results.

Descriptors :   *Shells(Structural forms), *Structural mechanics, *Nonlinear analysis, Cylindrical bodies, Loads(Forces), Deformation, Composite structures, Mathematical analysis

Subject Categories : Numerical Mathematics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE