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Journal of Reinforced Plastics and Composites
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Prediction of Thermal Cycling Induced Matrix Cracking

Hugh L. Mcmanus

Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139

David E. Bowles

Stephen S. Tompkins

NASA Langley Research Center, Hampton, VA 23681-0001

Thermal fatigue has been observed to cause matrix cracking in laminated composite materials. A method is presented to predict transverse matrix cracks in a composite laminate subjected to cyclic thermal load. Shear lag stress approximations and a simple energy-based failure criteria are used to predict crack density as a function of temperature. Prediction of crack density as a function of thermal cycling is accomplished by assuming that fatigue degrades the material's inherent resistance to cracking. The method is implemented as a computer program. Simple experiments provide data on progressive cracking of a laminate with decreasing temperature, and on cracking induced by thermal cycling. Correlation of the analytical predictions to the data is very good. A parametric study using the analytical method is presented which provides insight into material behavior under cyclical thermal loads.

Journal of Reinforced Plastics and Composites, Vol. 15, No. 2, 124-140 (1996)
DOI: 10.1177/073168449601500201
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Home page
 International Journal of Damage MechanicsHome page
S. Ogihara, A. Kobayashi, T. Ishiguro, and N. Otani
Experimental Characterization of Matrix Cracking Behavior in Thermally Cycled CFRP Laminates
International Journal of Damage Mechanics, July 1, 2002; 11(3): 287 - 305.
[Abstract] [PDF]