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Sensitivity of the thermomechanical response of elastic structures to microstructural changes
(Pergamon-Elsevier Science Ltd, 2015-07)
This paper is focused on the analysis of the sensitivity of the thermomechanical response of a macroscopic elastic body to changes that occur at the microstructure. This problem is a key issue in material design. The ...
A 2D boundary element formulation to model the constitutive behavior of heterogeneous microstructures considering dissipative phenomena
(2019-02-01)
A boundary element formulation to obtain the constitutive response of heterogeneous microstructures is proposed, considering a RVE-based multiscale theory. The sub-region technique is adopted to model the RVE (Representative ...
Microstructure homogeneity of milled aluminum A356-Si3N4 metal matrix composite powders
(Elsevier Editora Ltda, 2019)
A metal matrix composite was produced by co-milling an A356 aluminum alloy powder obtained by rotating electrode off-equilibrium solidification, with different mass fractions (10, 20 and 30%) of Si3N4. The structural and ...
The dispersion tensor and its unique minimizer in hashin–shtrikman micro-structures
(Springer, 2018-11)
In this paper, we introduce a macroscopic quantity, namely the dispersion tensor or the Burnett coefficients in the class of generalized Hashin-Shtrikman micro-structures (Tartar in The general theory of homogenization, ...
Rank-three laminates are good approximants of the optimal microstructures for the diffusion problem in dimension two
(PERGAMON-ELSEVIER SCIENCE LTD, 2004)
In two dimensions there are optimal bounds for the effective conductivity of arbitrary mixtures of two heat conducting materials: one isotropic and the other anisotropic; used in fixed volume fractions and allowing for ...