Back to Search
Start Over
Failure analysis of plain woven glass/epoxy laminates: Comparison of off-axis and biaxial tension loadings.
- Source :
-
Polymer Testing . Jul2017, Vol. 60, p307-320. 14p. - Publication Year :
- 2017
-
Abstract
- An experimental study was focused on investigation of the failure properties of plain woven glass/epoxy composites under off-axis and biaxial tension loading conditions. Four fibre orientations (0°, 15°, 30° and 45° with respect to the load direction) were considered for off-axis tests and two biaxial load ratios for biaxial tests to study failure characteristics and mechanism. Four classical polynomial failure criteria - Tsai-Hill, Hoffman, Tsai-Wu and Yeh-Stratton - were analysed comparatively to predict off-axis and biaxial failure strength of the composites. For failure prediction of the plain woven composites under multiaxial tension loads, the Tsai-Wu criterion was modified by introducing an interaction coefficient F 12 obtained from 45° off-axis or biaxial tension tests and the Yeh-Stratton criterion was modified with the interaction coefficient B 12 = 0 or obtained from the biaxial tension test. The former criterion was found to have higher accuracy. Finally, according to macroscopic and microscopic studies, the failed specimens showed mostly distinct failure with a specific fracture orientation, mainly exhibiting fibre or fabric tensile fracture mode and a combination of matrix cracking and delamination, both in off-axis and cruciform samples. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01429418
- Volume :
- 60
- Database :
- Academic Search Index
- Journal :
- Polymer Testing
- Publication Type :
- Academic Journal
- Accession number :
- 123134018
- Full Text :
- https://doi.org/10.1016/j.polymertesting.2017.04.010