Institute of Fundamental Technological Research
Polish Academy of Sciences

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Q.S. Nguyen


Recent publications
1.  Nguyen Q.S., Petryk H., A constitutive inequality for time-independent dissipative solids, Comptes Rendus de l’Académie des Sciences. Série II, ISSN: 0764-4450, Vol.312, No.1, pp.7-12, 1991

Abstract:
A general constitutive inequality for time-independent solids has been recently derived by Petryk from the normality and symmetry assumptions adopted at a micro-level of an elastic-plastic heterogeneous aggregate. The objective of this communication is to discuss its validity for a class of inelastic solids characterized by the existence of a thermodynamic potential and by the maximum dissipation principle. As an example, a material with a number of Griffith's micro-cracks is considered.

Keywords:
Elastoplasticity, Griffith crack, Variational inequality, Heterogeneous material, Internal variable material, Microcrack, Thermodynamics

Affiliations:
Nguyen Q.S. - other affiliation
Petryk H. - IPPT PAN

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