SANISTEEL: Simple anisotropic steel plasticity model

Mahan, M; Dafalias, YF; Taiebat, M; Heo, Y; Kunnath, SK

dc.contributor.author	Mahan, M	en
dc.contributor.author	Dafalias, YF	en
dc.contributor.author	Taiebat, M	en
dc.contributor.author	Heo, Y	en
dc.contributor.author	Kunnath, SK	en
dc.date.accessioned	2014-03-01T01:36:43Z
dc.date.available	2014-03-01T01:36:43Z
dc.date.issued	2011	en
dc.identifier.issn	0733-9445	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21416
dc.subject	Anisotropy	en
dc.subject	Bounding surface	en
dc.subject	Constitutive model	en
dc.subject	Perfect plasticity	en
dc.subject	Plasticity	en
dc.subject	Plateau	en
dc.subject	Steel	en
dc.subject.classification	Construction & Building Technology	en
dc.subject.classification	Engineering, Civil	en
dc.subject.other	Bounding surface plasticity	en
dc.subject.other	Bounding surfaces	en
dc.subject.other	Cross section	en
dc.subject.other	Cumulative plastic strain	en
dc.subject.other	Cyclic loadings	en
dc.subject.other	Discretizations	en
dc.subject.other	Inelastic response	en
dc.subject.other	Kinematic hardening rule	en
dc.subject.other	Multiaxial stress	en
dc.subject.other	Perfect plasticity	en
dc.subject.other	Plastic response	en
dc.subject.other	Plateau	en
dc.subject.other	Plateau response	en
dc.subject.other	Random cyclic loading	en
dc.subject.other	Steel plasticity	en
dc.subject.other	Structural engineering	en
dc.subject.other	Structural steels	en
dc.subject.other	Uni-axial loading	en
dc.subject.other	Yield surface	en
dc.subject.other	Anisotropy	en
dc.subject.other	Building materials	en
dc.subject.other	Constitutive models	en
dc.subject.other	Cyclic loads	en
dc.subject.other	Hardening	en
dc.subject.other	Loading	en
dc.subject.other	Plasticity	en
dc.subject.other	Computer simulation	en
dc.title	SANISTEEL: Simple anisotropic steel plasticity model	en
heal.type	journalArticle	en
heal.identifier.primary	10.1061/(ASCE)ST.1943-541X.0000297	en
heal.identifier.secondary	http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0000297	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	A simple constitutive model for the inelastic response of steel under monotonic and random cyclic loading conditions is developed within the framework of bounding surface plasticity. The particular feature that distinguishes this model from other similar ones is the ability of the bounding surface formulation to describe in a very simple way the initial ""plateau"" type of perfectly plastic response that many kinds of structural steels exhibit upon initial yield in tension or compression, before hardening begins. The key constitutive element is to assume a fixed nonhardening bounding surface during the plateau response until a cumulative plastic strain threshold is reached, while the yield surface softens isotropically and hardens kinematically. In this way not only monotonic but also cyclic loading within the plateau range can be easily described. Three kinematic hardening rules for the bounding surface are explored. The development is focused on uniaxial loading conditions that are typical in many structural engineering applications employing a fiber-based discretization of the cross section. Several simulations to demonstrate the effectiveness of the proposed model are presented. Finally, its extension to a multiaxial stress generalization is concisely presented for future use. © 2011 ASCE.	en
heal.publisher	ASCE-AMER SOC CIVIL ENGINEERS	en
heal.journalName	Journal of Structural Engineering	en
dc.identifier.doi	10.1061/(ASCE)ST.1943-541X.0000297	en
dc.identifier.isi	ISI:000286218200003	en
dc.identifier.volume	137	en
dc.identifier.issue	2	en
dc.identifier.spage	185	en
dc.identifier.epage	194	en