Elastic-plastic composites at finite strains

S. Nemat-Nasser; T. Iwakuma

doi:10.1016/0020-7683(85)90104-0

Elastic-plastic composites at finite strains

S. Nemat-Nasser, T. Iwakuma

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

7 Citations (Scopus)

Abstract

For elastic-plastic composites at finite strains and rotations. Hill's self-consistent method is used to estimate the overall instantaneous elastic-plastic moduli. Results are applied to a porous metal whose matrix constitutive relations are characterized by a generalized J₂ plasticity model. As an illustration, uniaxial deformation of a porous elastic-plastic solid is considered, and conditions under which the overall uniform deformation becomes unstable by localized deformations, are examined.

Original language	English
Pages (from-to)	55-65
Number of pages	11
Journal	International Journal of Solids and Structures
Volume	21
Issue number	1
DOIs	https://doi.org/10.1016/0020-7683(85)90104-0
Publication status	Published - 1985
Externally published	Yes

ASJC Scopus subject areas

Modelling and Simulation
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Applied Mathematics

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title = "Elastic-plastic composites at finite strains",

abstract = "For elastic-plastic composites at finite strains and rotations. Hill's self-consistent method is used to estimate the overall instantaneous elastic-plastic moduli. Results are applied to a porous metal whose matrix constitutive relations are characterized by a generalized J2 plasticity model. As an illustration, uniaxial deformation of a porous elastic-plastic solid is considered, and conditions under which the overall uniform deformation becomes unstable by localized deformations, are examined.",

author = "S. Nemat-Nasser and T. Iwakuma",

note = "Funding Information: Acknowledgment-This work has been supported by the Army Research Office under contract DAAG29-82-K-0147 to Northwestern University.",

year = "1985",

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AU - Nemat-Nasser, S.

AU - Iwakuma, T.

N1 - Funding Information: Acknowledgment-This work has been supported by the Army Research Office under contract DAAG29-82-K-0147 to Northwestern University.

PY - 1985

Y1 - 1985

N2 - For elastic-plastic composites at finite strains and rotations. Hill's self-consistent method is used to estimate the overall instantaneous elastic-plastic moduli. Results are applied to a porous metal whose matrix constitutive relations are characterized by a generalized J2 plasticity model. As an illustration, uniaxial deformation of a porous elastic-plastic solid is considered, and conditions under which the overall uniform deformation becomes unstable by localized deformations, are examined.

AB - For elastic-plastic composites at finite strains and rotations. Hill's self-consistent method is used to estimate the overall instantaneous elastic-plastic moduli. Results are applied to a porous metal whose matrix constitutive relations are characterized by a generalized J2 plasticity model. As an illustration, uniaxial deformation of a porous elastic-plastic solid is considered, and conditions under which the overall uniform deformation becomes unstable by localized deformations, are examined.

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JO - International Journal of Solids and Structures

JF - International Journal of Solids and Structures

IS - 1

ER -

Elastic-plastic composites at finite strains

Abstract

ASJC Scopus subject areas

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