Interaction of coplanar surface cracks in a half-space
- 28 Downloads
Boundary integral equations are applied to the interaction of closely spaced surface-coplanar cracks with various geometrical dimensions in a half-space that is tensioned by forces perpendicular to the crack surfaces. The numerical results show that the crack depths and the distances between them greatly influence the stress intensity coefficients at the edges of the cracks, and the interaction between the cracks can be neglected only for shallow ones.
KeywordsIntegral Equation Stress Intensity Geometrical Dimension Crack Surface Boundary Integral Equation
Unable to display preview. Download preview PDF.
- 1.Smith, Emery, and Kobayashi, “Stress intensity coefficients for semicircular cracks. Part 2. Semiinfinite medium,” Proc. American Society of Mechanical Engineers, Applied Mechanics [Russian translation],34, No. 4, 232–239 (1967).Google Scholar
- 2.F. W. Smith and M. J. Alavi, “Stress intensity factors for part-circular surface flaws,” Proc. Ist Int. Pressure Vessel Conf., Delhi, 1969. ASME, Delft (1969), pp. 783–800.Google Scholar
- 3.H. Nishitani and Y. Murakami, “Stress intensity factors for an elliptical crack or a semi-elliptical crack subjected to tension,” Int. J. Fract.,10, No. 3, 353–368 (1974).Google Scholar
- 4.K. Hayashi and H. Abe, “Stress intensity factors for a semielliptical crack in the surface of a semiinfinite solid,” ibid.,16, No. 3, 275–285 (1980).Google Scholar
- 5.V. A. Vainshtok and I. N. Varfolomeev, “A method for calculating stress intensity coefficients for typical threedimensional defects,” Probl. Prochnosti, No. 8, 18–24 (1986).Google Scholar
- 6.M. Ishida, “New analysis and results of embedded cracks and surface cracks in finite thick plates,” J. Aeron. Soc. India,36, No. 4, 305–325 (1984).Google Scholar
- 7.Y. Murakami and H. Nishitani, “Stress intensity factors for interaction of two equal semi-elliptical surface cracks in tension,” Trans. JSME, Ser. A,47, No. 415, 295–303 (1981).Google Scholar
- 8.G. S. Kit and M. V. Khai, The Potential Method in Three-Dimensional Treatments of Thermoelasticity for Bodies Containing Cracks [in Russian], Naukova Dumka, Kiev (1989).Google Scholar
- 9.M. V. Khai and I. V. Kalynyak, “An approach to numerical solution of aspects of mathematical crack theory,” Matematicheskie Metody i Fiz.-Mekh. Polya, Issue 20, 39–43 (1984).Google Scholar