Title

Initiation and Growth of Delamination Along 0/90 Interfaces in Laminates

Abstract

Matrix dominant failure in the form of transverse cracks occurs in 90-degree plies of composite laminates subject to tensile loads. These transverse cracks act as precursors to delamination between axial load carrying zero degree ply group and transverse 90-degree ply group. A micromechanics analytical model is presented for the study of delamination onset and growth from the tip of transverse cracks. The model is based on a consistent shear lag stress-displacement relations and accounts for the transverse normal stresses in the matrix, unlike the classical shear-lag assumptions. The resulting governing equations are solved numerically using eigenvalue-eigenvector technique. The failure stresses/strains are determined based on a point stress failure criterion. The results are presented for a number of laminate configurations.

Meeting Name

National SAMPE Symposium and Exhibition (Proceedings) (1990, Anaheim, CA, USA)

Department(s)

Mechanical and Aerospace Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1990 Society for the Advancement of Material and Process Engineering (SAMPE) Publishing, All rights reserved.

This document is currently not available here.

Share

 
COinS