Can crack front waves explain the roughness of cracks ?

Details Can crack front waves explain the roughness of cracks ? Can crack front waves explain the roughness of cracks ?

2001-08-16

arxiv.org/abs/cond-mat/0108261v1

Physics

Condensed Matter

26 pages, 3 .eps figure. Submitted to J. Mech. Phys. Solids

Scientific paper

10.1016/S0022-5096(01)00137-5

We review recent theoretical progress on the dynamics of brittle crack fronts and its relationship to the roughness of fracture surfaces. We discuss the possibility that the intermediate scale roughness of cracks, which is characterized by a roughness exponent approximately equal to 0.5, could be caused by the generation, during local instabilities by depinning, of diffusively broadened corrugation waves, which have recently been observed to propagate elastically along moving crack fronts. We find that the theory agrees plausibly with the orders of magnitude observed. Various consequences and limitations, as well as alternative explanations, are discussed. We argue that another mechanism, possibly related to damage cavity coalescence, is needed to account for the observed large scale roughness of cracks that is characterized by a roughness exponent approximately equal to 0.8

Affiliated with

Also associated with

No associations

Rating

Can crack front waves explain the roughness of cracks ? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Can crack front waves explain the roughness of cracks ?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Can crack front waves explain the roughness of cracks ? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-396040