AN APPROXIMATE ELASTIC TWO-DIMENSIONAL GREEN'S FUNCTION FOR A CONSTANT-GRADIENT MEDIUM

dc.contributor.author	Sanchez-Sesma F.J.
dc.contributor.author	Madariaga R.
dc.contributor.author	Irikura K.
dc.date.accessioned	2021-03-18T04:39:05Z
dc.date.available	2021-03-18T04:39:05Z
dc.date.issued	2001
dc.identifier	https://www.elibrary.ru/item.asp?id=1205118
dc.identifier.citation	Geophysical Journal International, 2001, 146, 1, 237-248
dc.identifier.issn	0956-540X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/26891
dc.description.abstract	Approximate analytical formulae for elastic 2-D Green's functions for a constant-gradient propagation velocity medium are presented. These solutions correspond to unit line forces per unit length: the antiplane SH line source and the in-plane P-SV line sources, respectively. They are based on the asymptotic ray theory and account for both near-source effects and low frequencies. The analytical expressions obtained are tested by means of the pseudospectral method with a velocity-stress staggered grid. The agreement of the approximate analytical displacement and stress fields with their numerical counterparts is generally very good. A measure of relative error is proposed.
dc.subject	BODY WAVES
dc.subject	ELASTIC WAVE THEORY
dc.subject	GREEN'S FUNCTIONS
dc.subject	RAY THEORY
dc.subject	SEISMOLOGY
dc.subject	STRONG GROUND MOTION
dc.title	AN APPROXIMATE ELASTIC TWO-DIMENSIONAL GREEN'S FUNCTION FOR A CONSTANT-GRADIENT MEDIUM
dc.type	Статья

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