A dilatational plasticity theory for viscoplastic materials

B. Chen; Y. Huang; C. Liu; P. D. Wu; S. R. MacEwen

doi:10.1016/j.mechmat.2002.07.001

A dilatational plasticity theory for viscoplastic materials

B. Chen, Y. Huang^*, C. Liu, P. D. Wu, S. R. MacEwen

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The dilatational plasticity theory of [J. Engng. Mater. Tech. 99 (1977) 2] is generalized in this paper for viscoplastic materials. A unit-cell model of a viscoplastic matrix containing a microvoid is adopted to establish the viscoplastic constitutive relations for voided, dilating materials. Approximate analytic constitutive relations are proposed, which not only have the correct asymptotic limits but also agree well with the unit-cell model.

Original language	English (US)
Pages (from-to)	679-689
Number of pages	11
Journal	Mechanics of Materials
Volume	36
Issue number	8
DOIs	https://doi.org/10.1016/j.mechmat.2002.07.001
State	Published - Aug 2004

Keywords

Dilatational plasticity
Gurson model
Viscoplastic material
Void growth

ASJC Scopus subject areas

General Materials Science
Instrumentation
Mechanics of Materials

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10.1016/j.mechmat.2002.07.001

Cite this

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title = "A dilatational plasticity theory for viscoplastic materials",

abstract = "The dilatational plasticity theory of [J. Engng. Mater. Tech. 99 (1977) 2] is generalized in this paper for viscoplastic materials. A unit-cell model of a viscoplastic matrix containing a microvoid is adopted to establish the viscoplastic constitutive relations for voided, dilating materials. Approximate analytic constitutive relations are proposed, which not only have the correct asymptotic limits but also agree well with the unit-cell model.",

keywords = "Dilatational plasticity, Gurson model, Viscoplastic material, Void growth",

author = "B. Chen and Y. Huang and C. Liu and Wu, {P. D.} and MacEwen, {S. R.}",

note = "Funding Information: Y.H. gratefully acknowledges the support from Alcan Int. Ltd., Office of Naval Research (grant no. N00014-01-1-0215, program monitor Dr. Y.D.S. Rajapakse), and ASCI Center for Simulation of Advanced Rockets at the University of Illinois supported by the U.S. Department of Energy through the University of California under subcontract B523819. C.L. acknowledges the support from the Department of Energy, Enhanced Surveillance Program. ",

year = "2004",

month = aug,

doi = "10.1016/j.mechmat.2002.07.001",

language = "English (US)",

volume = "36",

pages = "679--689",

journal = "Mechanics of Materials",

issn = "0167-6636",

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TY - JOUR

T1 - A dilatational plasticity theory for viscoplastic materials

AU - Chen, B.

AU - Huang, Y.

AU - Liu, C.

AU - Wu, P. D.

AU - MacEwen, S. R.

N1 - Funding Information: Y.H. gratefully acknowledges the support from Alcan Int. Ltd., Office of Naval Research (grant no. N00014-01-1-0215, program monitor Dr. Y.D.S. Rajapakse), and ASCI Center for Simulation of Advanced Rockets at the University of Illinois supported by the U.S. Department of Energy through the University of California under subcontract B523819. C.L. acknowledges the support from the Department of Energy, Enhanced Surveillance Program.

PY - 2004/8

Y1 - 2004/8

N2 - The dilatational plasticity theory of [J. Engng. Mater. Tech. 99 (1977) 2] is generalized in this paper for viscoplastic materials. A unit-cell model of a viscoplastic matrix containing a microvoid is adopted to establish the viscoplastic constitutive relations for voided, dilating materials. Approximate analytic constitutive relations are proposed, which not only have the correct asymptotic limits but also agree well with the unit-cell model.

AB - The dilatational plasticity theory of [J. Engng. Mater. Tech. 99 (1977) 2] is generalized in this paper for viscoplastic materials. A unit-cell model of a viscoplastic matrix containing a microvoid is adopted to establish the viscoplastic constitutive relations for voided, dilating materials. Approximate analytic constitutive relations are proposed, which not only have the correct asymptotic limits but also agree well with the unit-cell model.

KW - Dilatational plasticity

KW - Gurson model

KW - Viscoplastic material

KW - Void growth

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DO - 10.1016/j.mechmat.2002.07.001

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VL - 36

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EP - 689

JO - Mechanics of Materials

JF - Mechanics of Materials

IS - 8

ER -

A dilatational plasticity theory for viscoplastic materials

Abstract

Keywords

ASJC Scopus subject areas

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