Corrugation crack front waves
  The paper presents a model of a dynamic crack with a wavy surface. So far, theoretical analysis of crack front waves has been performed only for in-plane perturbations of the crack front. In the present paper, generalisation is given to a more general three-dimensional perturbation, and equations that govern corrugation crack front waves are derived and analysed. 
J. R. Willis, N. V. Movchan, A. B. Movchan
math.AP math-ph math.MP