Accession Number : ADP005998

Title :   Stresses in Pinloaded Anisotropic Plates,

Corporate Author : ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRAN CE)

Personal Author(s) : De Jong, Th.

Report Date : MAR 1988

Pagination or Media Count : 17

Abstract : A method is presented for the calculation of stresses in an anisotropic plate with a row of equally spaced, pin-loaded holes. The pin-plate configuration represents practical joint in a composite laminate where load is transferred from a row of mechanical fasteners into the laminate. The pins fit without clearance in the holes and they are supposed to be infinitely rigid. Numerical results are presented showing various effects of geometrical and material parameters on the stress distribution. The problem of a row of pin-loaded holes in an anisotropic plate is a complicated one of the mixed-boundary type. Several solutions can be found in literature based on simplifying assumptions regarding symmetry and geometry of the problem. The present solution is more general in those respects. It can be considered to be an application of Lekhnitskii's theory on stress distributions in anisotropic plates with holes. With this theory the determination of the stresses is reduced to the determination of two complex functions which must satisfy the specified boundary conditions of the problems. (SDW)

Descriptors :   *ANISOTROPY, *COMPOSITE MATERIALS, *LAMINATES, *PLATES, *SHEAR STRESSES, BOUNDARIES, COMPUTATIONS, DETERMINATION, DISTRIBUTION, FASTENINGS, FUNCTIONS, GEOMETRY, HOLES(OPENINGS), LOAD DISTRIBUTION, MATERIALS, MECHANICAL COMPONENTS, NUMERICAL ANALYSIS, PARAMETERS, PINS, THEORY.

Subject Categories : Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE