Failure of Quasi-Isotropic Composite Laminates with Free Edges
- 1 November 1988
- journal article
- research article
- Published by SAGE Publications in Journal of Reinforced Plastics and Composites
- Vol. 7 (6) , 515-557
- https://doi.org/10.1177/073168448800700602
Abstract
Failure in quasi-isotropic (π/4 and π/3) laminates with free edges under on-axis and off-axis loads has been studied experimentally and analytically. Although these laminates are isotropic in stiffness, they are highly amsotropic in strength with respect to loading direction. For these laminates, classical failure criteria are not adequate for laminate strength prediction. A new failure criterion has been developed based on free edge in terlaminar stresses. This new criterion was verified experimentally to be quite accurate in predicting failure loads for these quasi-isotropic laminates under off-axis loading.Keywords
This publication has 20 references indexed in Scilit:
- On the Effect of Matrix Cracks on Laminate StrengthJournal of Reinforced Plastics and Composites, 1987
- Experimental and Analytical Studies On the Onset of Delamination in Laminated CompositesJournal of Composite Materials, 1984
- Experimental Determination of the In Situ Transverse Lamina Strength in Graphite/Epoxy LaminatesJournal of Composite Materials, 1982
- An Investigation of Cumulative Damage Development in Quasi-Isotropic Graphite/Epoxy LaminatesPublished by ASTM International ,1982
- On the Measurement of Lamina In-Plane Shear StrengthJournal of Composites Technology and Research, 1982
- Fatigue failure of angle ply laminatesAIAA Journal, 1976
- Fatigue Behavior of Composite LaminateJournal of Composite Materials, 1976
- A Fatigue Failure Criterion for Fiber Reinforced MaterialsJournal of Composite Materials, 1973
- Moiré Analysis of the Interlaminar Shear Edge Effect in Laminated CompositesJournal of Composite Materials, 1971
- Strength of laminated composite materials.AIAA Journal, 1966