Elastic properties of AlO-NiAl: a modified version of Hashin-Shtrikman bounds.
- Resource Type
- Article
- Authors
- Upadhyay, Anupama; Beniwal, R.; Singh, Ramvir
- Source
- Continuum Mechanics & Thermodynamics. May2012, Vol. 24 Issue 3, p257-266. 10p.
- Subject
- *MICROMECHANICS
*MICROSTRUCTURE
*MODULI theory
*SHEAR (Mechanics)
*ELASTICITY
*COMPOSITE materials
*INTERFACES (Physical sciences)
*INTERMETALLIC compounds
- Language
- ISSN
- 0935-1175
The modified nonlinear relations for the estimation of elastic constants of AlO-NiAl composite material are developed. The concept of microstructure and interconnectivity of phases at the interface is used. Hashin-Shtrikman relations are described in their actual form and modified version of Hashin-Shtrikman relations for bulk and shear moduli are discussed. These relations for elastic and mechanical properties are applied mainly for AlO-NiAl composite material. Theoretical predictions using modified relations are compared with Hashin-Shtrikman bounds and experimental results of elastic properties for AlO-NiAl matrix-inclusion-based composite. It is found that the predicted values of elastic and mechanical properties using modified relations are quite close to the experimental results. [ABSTRACT FROM AUTHOR]