Notch stress concentrations and failure characteristics in laminates with triple parallel notches

This paper deals with stress concentrations in laminates with triple parallel-arranged and equally spaced notches. By the use of the finite-element method, the stress concentration factors at points on the boundary of a notch were calculated for unidirectional and cross-ply laminates and for isotrop...

Full description

Saved in:
Bibliographic Details
Published in:Composites science and technology 2000-11, Vol.60 (15), p.2865-2872
Main Authors: Zhao, J.H., Wang, X.F., Dharani, L.R., Wei, J.
Format: Article
Language:English
Subjects:
Applied sciences
C. Laminates
C. Stress concentrations
Exact sciences and technology
Failure characteristics
Forms of application and semi-finished materials
Laminates
Polymer industry, paints, wood
Technology of polymers
Triple notches
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper deals with stress concentrations in laminates with triple parallel-arranged and equally spaced notches. By the use of the finite-element method, the stress concentration factors at points on the boundary of a notch were calculated for unidirectional and cross-ply laminates and for isotropic plates with surface or through notches. It was found that the stress concentration factors near the notch change from high to low then revert to high with spacing between both neighboring notches for all the calculated cases. A series of failure tests on carbon-fiber/epoxy laminate specimens with triple notches were conducted. The test results validated the calculated results.
ISSN:0266-3538
1879-1050
DOI:10.1016/S0266-3538(00)00161-5