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SANISTEEL: Simple anisotropic steel plasticity model

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SANISTEEL: Simple anisotropic steel plasticity model (EN)
Mahan, M (EN)
Kunnath, SK (EN)
Taiebat, M (EN)
Heo, Y (EN)
Dafalias, YF (EN)
journalArticle (EN)
2014-03-01T01:36:43Z
2011 (EN)
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)
Construction & Building Technology (EN)
Engineering, Civil (EN)
Perfect plasticity (EN)
Building materials (EN)
Cross section (EN)
Cumulative plastic strain (EN)
Cyclic loads (EN)
Discretizations (EN)
Hardening (EN)
Random cyclic loading (EN)
Plateau response (EN)
Loading (EN)
Plasticity (EN)
Inelastic response (EN)
Plateau (EN)
Plastic response (EN)
Computer simulation (EN)
Constitutive model (EN)
Structural engineering (EN)
Steel (EN)
Bounding surface plasticity (EN)
Multiaxial stress (EN)
Uni-axial loading (EN)
Structural steels (EN)
Kinematic hardening rule (EN)
Bounding surface (EN)
Yield surface (EN)
Anisotropy (EN)
Cyclic loadings (EN)
Constitutive models (EN)
Steel plasticity (EN)
Bounding surfaces (EN)
Journal of Structural Engineering (EN)
English
ASCE-AMER SOC CIVIL ENGINEERS (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
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