Application of fracture mechanics to predict the strength of filament-wound composite specimens with surface damageThe strength of a thick surface notched filament wound graphite/epoxy tensile specimen was predicted using fracture mechanics analysis. The prediction model depended upon the depth of the surface notch and upon the type of failure. Specimens failed in two stages: first a sublaminate with thickness equal to the depth of the surface cut, and second, for increasing load, a sublaminate with thickness equal to the initial thickness minus the cut depth. Analytical predictions and experimental data were in good agreement.
Document ID
19890047786
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Morris, D. H. (Virginia Polytechnic Institute and State University Blacksburg, United States)
Harris, C. E. (NASA Langley Research Center Hampton, VA, United States)