Thermal Method for Depth of Damage Determination in Insulating Materials
Impact damage often may produce little visible surface damage, yet extensive subsurface delaminations, greatly reducing the load carrying capacity of the composite part . For large composite structures typical of aerospace applications, thermal NDE techniques have been shown to provide quantitative information regarding the area and depth of hidden damage in composite samples  . For a quantitative assessment of damage, where a noncontacting method capable of imaging large areas at a time is required, thermal techniques have some advantages.
KeywordsSurface Damage Impact Damage Heat Flux Boundary Condition Thermal Time Constant Quartz Lamp
Unable to display preview. Download preview PDF.
- 1.B. T. Smith. Farley, et al, in Review of Progress in Quantitative NDE, Vol. 10B, edited by D. O. Thompson and D. E. Chimenti ( Plenum Press, New York, 1991 ) pp 1623–1630.Google Scholar
- 2.Joseph N. Zalameda, G. L. Farley and B. T. Smith, Rotocraft Structures and Technology for the 1990’s and Beyond, AHS National Technical Specialists’ Meeting.Google Scholar
- 3.L. D. Favro, T. Ahmed, D. Crowther, H. J. Jin, P. K. Kuo, R. L. Thomas, and X. Wang, in SPIE Thermosense XIII, Vol. 1467 (1991) pp 290–294.Google Scholar
- 6.W. P. Winfree, P. A. Howell and K. Elliott Cramer, Proceedings of the 36 th International Instrumentation Symposium, 1990, pp. 881–886.Google Scholar
- 7.COSMOS/M Finite Element System, Structural Research and Analysis Corp., Santa Monica, CA.Google Scholar