Acoustic Emission (AE) was used to detect fatigue damage initiation and growth in (0/±45/90) s carbon/epoxy laminates. The fatigue tests were performed at a frequency of 2 Hz and at a stress ratio σmin/σmax = R = 0.05. Cyclic peak loads varied between 30-48% of ultimate tensile strength.
Get full access to this article
View all access options for this article.
References
1.
Roman, I., Mittelman, A., Davidovitz, M. and Marom, G., "Acoustic Emission Characterization of Fracture Mechanisms in Kevlar-Epoxy Composites," First International Symposium on Acoustic Emission from Reinforced Composites, The Society of Plastics Industry, Inc. (July 19-21, 1983).
2.
Wolters, J., "Description of Compound Parameters of Particle-Filled Thermoplastic Materials by Acoustic Emission Techniques," Journal of Acoustic Emission, Vol. 3(2), pp. 51-58 (1984).
3.
Gustafson, C.G. and Seldén, B.R., "Monitoring Fatigue Damage in CFRP Using Acoustic Emission and Radiographic Techniques," ASTM Symposium on Delamination and Debonding of Materials, Pittsburgh, Pennsylvania, In print (November 9-10, 1983).
4.
Awerbuch, J. , Madhukar, M. and Gorman, M.R. "Monitoring Damage Accumulation in Filament-Wound Graphite/Epoxy Laminate Coupons During Fatigue Loading Through Acoustic Emission ," Journal of Reinforced Plastics and Composites, Vol. 3, pp. 2-39 (January 1984 ).
