The forced torsional vibratory motion of an external circular crack in a transversely isotropic composite is investigated by using the method of Hankel transforms. A pair of vibratory torques of equal amplitude is applied at infinity. The infinite integral involved is evaluated through a contour integration to be discontinuous in nature. An exact expression for the dynamic stress intensity factor is obtained in terms of the frequency factor and the anisotropic material constants. The maximum value of the normalized dynamic stress-intensity factor is shown to occur at different frequency factors for the sample fiber-reinforced and metal matrix composites. The distortion of the dynamic crack surface displacement from the associated static displacement depends also on the forcing frequency and the material anisotropy.
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ASME 2002 Engineering Technology Conference on Energy
February 4–5, 2002
Houston, Texas, USA
Conference Sponsors:
- Petroleum Institute
ISBN:
0-7918-3591-X
PROCEEDINGS PAPER
Torsional Vibration of an External Circular Crack in a Transversely Isotropic Composite
Y. M. Tsai
Y. M. Tsai
Iowa State University, Ames, IA
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Y. M. Tsai
Iowa State University, Ames, IA
Paper No:
ETCE2002/CMDA-29078, pp. 219-225; 7 pages
Published Online:
January 7, 2009
Citation
Tsai, YM. "Torsional Vibration of an External Circular Crack in a Transversely Isotropic Composite." Proceedings of the ASME 2002 Engineering Technology Conference on Energy. Engineering Technology Conference on Energy, Parts A and B. Houston, Texas, USA. February 4–5, 2002. pp. 219-225. ASME. https://doi.org/10.1115/ETCE2002/CMDA-29078
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