Elastic forces that do no work and the dynamics of fast cracks
classification
❄️ cond-mat
mtrl-thnlin.PSpatt-sol
keywords
crackselasticfastforcesmotionalonebrittleconsiderations
read the original abstract
Elastic singularities such as crack tips, when in motion through a medium that is itself vibrating, are subject to forces orthogonal to the direction of motion and thus impossible to determine by energy considerations alone. This fact is used to propose a universal scenario, in which three dimensionality is essential, for the dynamic instability of fast cracks in thin brittle materials.
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