Mechanical homogenisation of masonry wall without mortar

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• 作者：T.M.H. Nguyen ; E. Blond ; A. Gasser ; T. Prietl
• 关键词：Mortarless masonry modelling ; Homogenisation ; Periodical structure ; Biaxial compression test
• 刊名：European Journal of Mechanics - A/Solids
• 出版年：2009
• 出版时间：May-June 2009
• 年：2009
• 卷：28
• 期：3
• 页码：535-544
• 全文大小：571 K

文摘

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.