Numerical simulation of fully saturated porous materials

Jeremic, B; Cheng, Z; Taiebat, M; Dafalias, Y

dc.contributor.author	Jeremic, B	en
dc.contributor.author	Cheng, Z	en
dc.contributor.author	Taiebat, M	en
dc.contributor.author	Dafalias, Y	en
dc.date.accessioned	2014-03-01T01:28:54Z
dc.date.available	2014-03-01T01:28:54Z
dc.date.issued	2008	en
dc.identifier.issn	0363-9061	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19019
dc.subject	Elasto-plastic	en
dc.subject	Finite elements	en
dc.subject	Saturated porous solid-fluid simulations	en
dc.subject	Soil dyanamics	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Mechanics	en
dc.subject.other	Computer simulation	en
dc.subject.other	Damping	en
dc.subject.other	Elastoplasticity	en
dc.subject.other	Flow interactions	en
dc.subject.other	Models	en
dc.subject.other	Plastics	en
dc.subject.other	Soils	en
dc.subject.other	Advanced materials	en
dc.subject.other	Dynamic interactions	en
dc.subject.other	Dynamical behaviors	en
dc.subject.other	Elastic-plastic	en
dc.subject.other	Elasto-plastic	en
dc.subject.other	Field equations	en
dc.subject.other	Finite elements	en
dc.subject.other	Fluid compressibility	en
dc.subject.other	Fluid formulation	en
dc.subject.other	Fully coupled	en
dc.subject.other	Illustrative examples	en
dc.subject.other	Implementation models	en
dc.subject.other	Material modelling	en
dc.subject.other	Modeling and simulation	en
dc.subject.other	Numerical simulations	en
dc.subject.other	Pore fluids	en
dc.subject.other	Porous mediums	en
dc.subject.other	Saturated porous medium	en
dc.subject.other	Saturated porous solid-fluid simulations	en
dc.subject.other	Saturated soils	en
dc.subject.other	Seismic shaking	en
dc.subject.other	Soil dyanamics	en
dc.subject.other	Soil skeleton	en
dc.subject.other	Structure interactions	en
dc.subject.other	Validated methods	en
dc.subject.other	Verification and validation	en
dc.subject.other	Porous materials	en
dc.subject.other	computer simulation	en
dc.subject.other	damping	en
dc.subject.other	dynamic response	en
dc.subject.other	elastoplasticity	en
dc.subject.other	model validation	en
dc.subject.other	numerical model	en
dc.subject.other	porous medium	en
dc.subject.other	saturated medium	en
dc.subject.other	seismic response	en
dc.subject.other	shaking table test	en
dc.subject.other	soil dynamics	en
dc.subject.other	soil-structure interaction	en
dc.subject.other	stiffness	en
dc.title	Numerical simulation of fully saturated porous materials	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/nag.687	en
heal.identifier.secondary	http://dx.doi.org/10.1002/nag.687	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Fully coupled, porous solid-fluid formulation, implementation and related modeling and simulation issues are presented in this work. To this end, coupled dynamic field equations with u - p - U formulation are used to simulate pore fluid and soil skeleton (elastic-plastic porous solid) responses. Present formulation allows, among other features, for water accelerations to be taken into account. This proves to be useful in modeling dynamic interaction of media of different stiffnesses (as in soil-foundation-structure interaction). Fluid compressibility is also explicitly taken into account, thus allowing excursions into modeling of limited cases of non-saturated porous media. In addition to these features, present formulation and implementation models in a realistic way the physical damping, which dissipates energy. In particular, the velocity proportional damping is appropriately modeled and simulated by taking into account the interaction of pore fluid and solid skeleton. Similarly, the displacement proportional damping is physically modeled through elastic-plastic processes in soil skeleton. An advanced material model for sand is used in present work and is discussed at some length. Also explored in this paper are the verification and validation issues related to fully coupled modeling and simulations of porous media. Illustrative examples describing the dynamical behavior of porous media (saturated soils) are presented. The verified and validated methods and material models are used to predict the behavior of level and sloping grounds subjected to seismic shaking. Copyright (C) 2008 John Wiley & Sons, Ltd.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	International Journal for Numerical and Analytical Methods in Geomechanics	en
dc.identifier.doi	10.1002/nag.687	en
dc.identifier.isi	ISI:000259531900004	en
dc.identifier.volume	32	en
dc.identifier.issue	13	en
dc.identifier.spage	1635	en
dc.identifier.epage	1660	en