Summary
The method of caustics was used to investigate the dynamic problem of interaction of two collinear edge cracks in plane PMMA specimens. By varying the externally applied strain rate and the initial crack lengths, useful conclusions were derived on the instability of interacting cracks, their paths of propagation, the variation of the crack propagation velocities and the stress intensity factors.
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Theocaris, P.S., Milios, J. Dynamic interaction of collinear cracks. Acta Mechanica 43, 243–260 (1982). https://doi.org/10.1007/BF01176285
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DOI: https://doi.org/10.1007/BF01176285