Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-27T11:35:28.002Z Has data issue: false hasContentIssue false

On the micro-to-macro transition in constitutive analyses of elastoplastic response at finite strain

Published online by Cambridge University Press:  24 October 2008

R. Hill
Affiliation:
Department of Applied Mathematics and Theoretical Physics, University of Cambridge

Abstract

The theoretical transition between basic properties of elastoplastic media at two levels of description is examined rigorously. At the micro-level the material response is heterogeneous, whereas at the macro-level it appears homogeneous. A broad class of constitutive relations is envisaged, and no restriction is placed on the magnitude of deformations and rotations at the micro-level. The investigation is concerned with quadratic differential forms that feature prominently in constitutive analyses, and is complementary to a previous study of bilinear differential forms. A principal objective is to access the transmissibility of measure-invariant inequalities from one level to the other.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1985

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Hill, R.. On uniqueness and stability in the theory of finite elastic strain. J. Mech. Phys. Solids 5 (1957), 229241.CrossRefGoogle Scholar
[2]Hill, R.. Uniqueness in general boundary-value problems for elastic or inelastic solids. J. Mech. Phys. Solids 9 (1961), 114130.CrossRefGoogle Scholar
[3]Hill, R.. Eigenmodal deformations in elastic/plastic continua. J. Mech. Phys. Solids 15 (1967), 371386.CrossRefGoogle Scholar
[4]Hill, R.. On constitutive macro-variables for heterogeneous solids at finite strain. Proc. Roy. Soc. London A 326 (1972), 131147.Google Scholar
[5]Hill, R.. On the elasticity and stability of perfect crystals at finite strain. Math. Proc. Cambridge Philos. Soc. 77 (1975), 225240.CrossRefGoogle Scholar
[6]Hill, R.. Aspects of invariance in solid mechanics. Advances in Applied Mechanics 18 (1978), 175.Google Scholar
[7]Hill, R.. On macroscopic effects of heterogeneity in elastoplastic media at finite strain. Math. Proc. Cambridge Philos. Soc. 95 (1984), 481494.Google Scholar
[8]Hill, R. and Havner, K. S.. Perspectives in the mechanics of elastoplastic crystals. J. Mech. Phys. Solids 30 (1982), 522.CrossRefGoogle Scholar
[9]Hill, R. and Rice, J. R.. Constitutive analysis of elastic-plastic crystals at arbitrary strain. J. Mech. Phys. Solids 20 (1972), 401413.CrossRefGoogle Scholar