Details
| Original language | English |
|---|---|
| Journal | Civil-Comp Proceedings |
| Volume | 106 |
| Publication status | Published - 1 Jan 2014 |
Abstract
Non-linear homogenization techniques based on the use of the finite element method are tested, in this paper, for the study of heterogeneous materials. The practical steps of a computational homogenization approach and representative examples related to masonry structures and ceramic materials are presented. The non-linear representative volume elements (RVE) of a masonry structure, including parts with elastoplastic material behaviour (mortar), and a ceramic material with a unilateral contact interface (crack), are created and solved. Parametric analysis has been chosen and used for the description of the strain loading. The average stress and strain in the RVE domain are then calculated. In addition, the stiffness is estimated for each loading level. Finally, two databases for the stiffness and the stress are created, a metamodel based on MATLAB interpolation is used, and an overall non-linear homogenization procedure, is considered. The satisfactory results obtained from the comparison between direct heterogeneous macroscopic models created by commercial software show that the proposed method can be used for the simulation of non-linear heterogeneous structures.
Keywords
- Masonry structures, Non-linear homogenization, Structural analysis
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Engineering
- Engineering(all)
- Civil and Structural Engineering
- Computer Science(all)
- Computational Theory and Mathematics
- Computer Science(all)
- Artificial Intelligence
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In: Civil-Comp Proceedings, Vol. 106, 01.01.2014.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Computational Homogenization in Masonry Structures
AU - Drosopoulos, G. A.
AU - Stavroulaki, M. E.
AU - Giannis, K.
AU - Plymakis, L.
AU - Stavroulakis, G. E.
AU - Wriggers, P.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Non-linear homogenization techniques based on the use of the finite element method are tested, in this paper, for the study of heterogeneous materials. The practical steps of a computational homogenization approach and representative examples related to masonry structures and ceramic materials are presented. The non-linear representative volume elements (RVE) of a masonry structure, including parts with elastoplastic material behaviour (mortar), and a ceramic material with a unilateral contact interface (crack), are created and solved. Parametric analysis has been chosen and used for the description of the strain loading. The average stress and strain in the RVE domain are then calculated. In addition, the stiffness is estimated for each loading level. Finally, two databases for the stiffness and the stress are created, a metamodel based on MATLAB interpolation is used, and an overall non-linear homogenization procedure, is considered. The satisfactory results obtained from the comparison between direct heterogeneous macroscopic models created by commercial software show that the proposed method can be used for the simulation of non-linear heterogeneous structures.
AB - Non-linear homogenization techniques based on the use of the finite element method are tested, in this paper, for the study of heterogeneous materials. The practical steps of a computational homogenization approach and representative examples related to masonry structures and ceramic materials are presented. The non-linear representative volume elements (RVE) of a masonry structure, including parts with elastoplastic material behaviour (mortar), and a ceramic material with a unilateral contact interface (crack), are created and solved. Parametric analysis has been chosen and used for the description of the strain loading. The average stress and strain in the RVE domain are then calculated. In addition, the stiffness is estimated for each loading level. Finally, two databases for the stiffness and the stress are created, a metamodel based on MATLAB interpolation is used, and an overall non-linear homogenization procedure, is considered. The satisfactory results obtained from the comparison between direct heterogeneous macroscopic models created by commercial software show that the proposed method can be used for the simulation of non-linear heterogeneous structures.
KW - Masonry structures
KW - Non-linear homogenization
KW - Structural analysis
UR - http://www.scopus.com/inward/record.url?scp=84963603069&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84963603069
VL - 106
JO - Civil-Comp Proceedings
JF - Civil-Comp Proceedings
SN - 1759-3433
ER -