Accession Number:

ADA229779

Title:

Initial Impact Damage of Composites

Descriptive Note:

Final rept. Nov 1985-Feb 1987,

Corporate Author:

MATERIALS SCIENCES CORP SPRING HOUSE PA

Report Date:

1988-01-01

Pagination or Media Count:

93.0

Abstract:

An analytical model is developed for predicting and studying the transient dynamic response of laminated composites during impact loading. In order to determine local stresses, the laminate is modeled as a number of substructures, each of which is representative of a smaller portion of the laminate. The reduced substructures are assembled in a manner analogous to classical finite elements. Good agreement was found between experimental and analytical contact force histories for 16 ply graphiteepoxy plates with aspect ratios less than 4.0. Less agreement was obtained for aspect ratios above 40. js

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE