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Planar cracks running along piecewise linear paths


Herrero, Miguel A. and Oleaga Apadula, Gerardo Enrique and Velázquez, J.J. L. (2004) Planar cracks running along piecewise linear paths. Proceedings of the Royal Society of London Series A - Mathematical Physical and Engineering Sciences, 460 . pp. 581-601. ISSN 1364-5021

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Consider a crack propagating in a plane according to a loading that results in anti-plane shear deformation. We show here that if the crack path consists of two straight segments making an angle psi not equal 0 at their junction, examples can be provided for which the value of the stress-intensity factor (SIF) actually depends on the previous history of the motion. This is in sharp contrast with the rectilinear case (corresponding to psi = 0), where the SIF is known to have a local character, its value depending only on the position and velocity of the crack tip at any given time.

Item Type:Article
Uncontrolled Keywords:Fracture dynamics; wave propagation; linear elasticity; asymptotic behaviour of solutions; stress intensity factors; situations; expansion; form
Subjects:Sciences > Physics > Mathematical physics
Sciences > Physics > Materials
ID Code:16409

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Deposited On:18 Sep 2012 08:45
Last Modified:07 Feb 2014 09:28

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