ISSN: 0884-6804
CODEN: JCTRER
Page Count: 7

Approximate Analysis of Postbuckled Through-Width Delaminations
Whitcomb, JD
Research engineer, NASA Langley Research Center, VA

Abstract

An approximate analysis was developed to investigate the postbuckling behavior of through-width delaminations in a laminated coupon. The analysis contains two parameters that are determined using a finite element analysis. After calculating the parameters for a few configurations, the approximate analysis was used to analyze many other configurations. Lateral deflections and Mode I strain-energy release rates obtained with the approximate analysis were compared with results from the finite element analysis. For the configurations analyzed, the approximate analysis agreed very well with the finite element results.

Keywords:
composite materials, buckling, laminates, delaminating, nonlinear stress analysis

Paper ID: CTR10865J
DOI: 10.1520/CTR10865J
ASTM International is a member of CrossRef.