Accession Number : ADA302536

Title :   Edge Delamination In Angle-Ply Composite Laminates. Part 5.

Descriptive Note : Final rept.,

Corporate Author : ILLINOIS UNIV AT URBANA DEPT OF THEORETICAL AND APPLIED MECHANICS

Personal Author(s) : Wang, S. S.

PDF Url : ADA302536

Report Date : FEB 1981

Pagination or Media Count : 60

Abstract : Edge delamination has caused severe concern in the design and analysis of advanced composite materials and structures. Due to its complex nature, very limited knowledge for the problem is currently available. It involves not only geometric and material discontinuities but also inherently coupled mode I, II and III fracture in the layered anisotropic system. Based on complex-variable stress potentials in the anisotropic elasticity theory and eigenfunction expansion, exact orders of the crack-tip stress singularity and complete field solutions are obtained. Results are given for edge-delaminated composites subjected to uniform axial extension for illustrative purposes. Effects of geometric, lamination, and crack variables are determined. jg p.5

Descriptors :   *COMPOSITE MATERIALS, *LAMINATES, *DELAMINATION, STRESSES, COUPLING(INTERACTION), LAYERS, MATERIALS, EDGES, CRACKS, ELASTIC PROPERTIES, EIGENVALUES, FRACTURE(MECHANICS), VARIABLES, SOLUTIONS(GENERAL), ANISOTROPY, GEOMETRY, EXPANSION, DISCONTINUITIES, AXIAL FLOW.

Subject Categories : Laminates and Composite Materials
      Crystallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE