Experimental micromechanical approach to failure process in CFRP cross-ply laminates
- Univ. of Tokyo (Japan). Research Center for Advanced Science and Technology
- Science Univ. of Tokyo, Chiba (Japan). Dept. of Mechanical Engineering
The microscopic failure process of three different types of cross-ply laminates, (0/90{sub n}/0) (n = 4, 8, 12), was investigated at R.T. and 80 C. Progressive damage parameters, the transverse crack density and the delamination ratio, were measured. A simple modified shear-lag analysis including the thermal residual strains was conducted to predict the transverse crack density as a function of laminate strain, considering the constraint effect, as well as the strength distribution of the transverse layer. The analysis was also extended to the system containing delamination to predict the delamination length. A prediction was also presented for the transverse crack density including the effect of the delamination growth. The prediction showed good agreement with the experimental results.
- OSTI ID:
- 89762
- Report Number(s):
- CONF-9409291-; ISBN 1-56676-220-0; TRN: IM9536%%192
- Resource Relation:
- Conference: 9. technical conference of the American Society for Composites, Newark, DE (United States), 20-22 Sep 1994; Other Information: PBD: 1994; Related Information: Is Part Of Proceedings of the American Society for Composites: Ninth technical conference; PB: 1319 p.
- Country of Publication:
- United States
- Language:
- English
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