Accession Number : ADP001913

Title :   Growth of Delaminations under Fatigue Loading,

Corporate Author : DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V BRUNSWICK (GERMANY F R)

Personal Author(s) : Prinz,R.

Report Date : JUL 1983

Pagination or Media Count : 25

Abstract : In order to determine the nature of failure mechanisms a number of fatigue tests were performed. The test specimens partly have artificial delaminations between different layers of the multidirectional laminates made from T300/914C prepregs. For better understanding starting from the free edges between the plies of a multidirectional laminate, has been developed. These defects propagate due to interlaminar stresses up to an area, which is critical in the case of tension-compression fatigue against buckling or shearing of parts of the delaminated test specimen.

Descriptors :   *Composite materials, *Laminates, *Failure(Mechanics), Fatigue tests(Mechanics), Strength(Mechanics), Crack propagation, Stresses, Defects(materials), Directional, Models

Distribution Statement : APPROVED FOR PUBLIC RELEASE