INVESTIGADORES
OLLER Sergio Horacio Cristobal
artículos
Título:
A Hygro-Thermo-Mechanical Constitutive Model for Multiphase Composite Materials
Autor/es:
S. OLLER; E. OÑATE
Revista:
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 1996 vol. 33 p. 3179 - 3186
ISSN:
0020-7683
Resumen:
The paper describes ahygro-thermo-mechanicalconstitutivemodel appropriate for numerical simulation of multiphasecompositematerial behaviour. The theory is based on the mixture of the basic substances of the composite and allows to evaluate the inter-dependent behaviour between the different compounding constitutivemodels. The initial anisotropy of each compounding can be taken into account by means of amapped isotropic plastic formulation. This is a generalization of classic isotropic plasticity theory applied to orthotropic or anisotropic materials. The basic assumption is the existence of astress and strain real anisotropic spaces and the respective fictitious isotropic spaces where a mapped fictitious problem is solved. Those spaces are related by means of two fourth order transformation tensor. The combination of mixing theory and the mapped isotropic plastic approach provides a powerful constitutive framework for the numerical treatment of bulk-fiber compositematerials.
