Conclusions
The use of suitable Green functions, in the BEM for axisymmetric bodies with cracks, yields accurate evaluation of the stress solution near the crack boundary. The singular character of the contact shearing stress between the stamp and the elastic medium influences the Mode III stress intensity factor for internal cracks more than for the external cracks. The validity of the numerical method has been verified through some characteristic examples. The accuracy of the results for K IIIis displayed for internal and external cracks. Their interaction effects with the singularity due to the stamp are reflected as the geometric parameters are varied.
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Communicated by H. Antes and T. A. Cruse, 17 August 1994
Dedicated to G. Rieder
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Kermanidis, T.B., Mavrothanasis, F.I. & Lentzos, J.A. B.E. Analysis of a cracked cylindrical rod twisted by rotation of a flat annular stamp. Computational Mechanics 15, 334–341 (1995). https://doi.org/10.1007/BF00372271
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DOI: https://doi.org/10.1007/BF00372271