Accession Number : ADP001248

Title :   Summary of Impact Work Fatigue and Fracture Branch,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CENTER

Personal Author(s) : Illg,Walter

Report Date : APR 1983

Pagination or Media Count : 15

Abstract : Objectives of this report are: To establish, through slow transverse loading, the energy capabilities of various composites; To develop a simple analytic method to predict progressive impact damage in quasi-isotropic composite laminates; To determine the effect of deliberately fabricated partial bonding on the impact resistance of composite laminates under prestrain, and To predict the residual tensile strength of impacted laminates.

Descriptors :   *Composite materials, *Fatigue(Mechanics), *Fracture(Mechanics), *Impact tests, Energy transfer, Absorption, Epoxy laminates, Matrix materials, Polysulfones, Shear properties, Plastic deformation, Compressive properties, Loads(Forces), Hysteresis, Graphite, Displacement, Modulus of elasticity, Tensile properties, Experimental data, Graphs, Charts, Conferencing(Communications), Symposia

Distribution Statement : APPROVED FOR PUBLIC RELEASE