NUMERICAL INSTABILITY AT THE EDGE OF A DYNAMIC FRACTURE

dc.contributor.author	Knopoff L.
dc.contributor.author	Ni X.X.
dc.date.accessioned	2021-03-18T04:39:07Z
dc.date.available	2021-03-18T04:39:07Z
dc.date.issued	2001
dc.identifier	https://www.elibrary.ru/item.asp?id=1205221
dc.identifier.citation	Geophysical Journal International, 2001, 147, 3, 1-6
dc.identifier.issn	0956-540X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/26924
dc.description.abstract	Numerical solutions by finite-difference techniques to problems of dynamical fracture growth exhibit oscillations with large amplitudes near the edges of the fractures that are caused by the stepwise advance of the edge of the crack across the computational lattice. In their turn, the oscillations cause anomalously large velocities of crack growth and slightly larger than expected velocities of slip in the interior of the crack. These undesirable consequences of computation of dynamical fractures on a discrete lattice can be minimized by the insertion of dissipation in the elastic properties of the system having about 1/3 of the value for critical damping at the lattice cutoff frequency.
dc.subject	FRACTURE DYNAMICS
dc.subject	NUMERICAL TECHNIQUES
dc.subject	RUPTURE PROPAGATION
dc.title	NUMERICAL INSTABILITY AT THE EDGE OF A DYNAMIC FRACTURE
dc.type	Статья

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