Mechanical homogenisation of masonry wall without mortar |
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| Authors: | T.M.H. Nguyen E. Blond A. Gasser T. Prietl |
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| Affiliation: | 1. Institut PRISME (EA 4229, University of Orléans), Polytech''Orléans, 8, rue Leonard de Vinci, F-45072 Orléans Cedex, France;2. RHI AG Technology Center, Magnesitstrasse 2, A-8700 Leoben, Austria;1. Department of Civil and Environmental Engineering, Technical University of Catalonia (UPC), Barcelona 08034, Spain;2. CIMNE—Centre Internacional de Metodes Numerics en Enginyeria, Technical University of Catalonia (UPC), Barcelona 08034, Spain;3. Department of Engineering and Geology, University “G.d’Annunzio” of Chieti and Pescara, Pescara 65127, Italy;1. Ceramics Research Centre, Tata Steel, PO Box 10000, 1970CA, IJmuiden, The Netherlands;2. Civil Engineering Department, KU Leuven, Kasteelpark Arenberg 40, bus 2448, 3001, Heverlee, Belgium;3. Department of Metallurgy and Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, 3001, Heverlee, Belgium;1. Univ. Orléans, INSA-CVL, PRISME, EA4229, F45072 Orléans, France;2. Ceramics Research Center, Tata Steel R&D, PO Box 10000, 1970CA Ijmuiden, The Netherlands;1. Ceramics Research Centre, Tata Steel, 1951MD Velsen Noord, The Netherlands;2. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, 430081 Wuhan, China;3. IMDEA Materials Institute, Getafe, 28906 Madrid, Spain;1. Université de Lyon, INSA Lyon, SMS-ID, France;2. Université de Lyon, France;3. School of Civil Engineering and Geosciences, Newcastle University, Newcastle, UK;4. Université Européenne de Bretagne – INSA de Rennes, LGCGM/Structural Engineering Research Group, France |
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| Abstract: | Some refractory linings of metallurgical vessels consist of masonry without mortar. To describe the mechanical behaviour of these large-sized structures, it is necessary to use an equivalent material instead of a model that comprises all the bricks and joints involved. The properties of the equivalent material depend on the opening and closure mechanism of joints. In this paper, four joint states which are the combination of open/closed states of bed and head joints are identified, and the corresponding equivalent elastic properties are determined accordingly using homogenisation techniques. The transition criterion between these joint states is based on the unilateral contact conditions written in terms of macroscopic strain. The developed model is then compared to an in-plane biaxial compression test. The numerical and experimental results are in good agreement. |
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