Analysis of 3D no-tension masonry-like walls

Briccola, Deborah and Bruggi, Matteo and Taliercio, Alberto (2018) Analysis of 3D no-tension masonry-like walls. Journal of Mechanics of Materials and Structures, 13 (5). pp. 631-646. ISSN 1559-3959

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Modeling masonry as a linear elastic no-tension material, an original approach is implemented to analyze 3D structural elements, with special attention to walls. Masonry is replaced by a suitable equivalent orthotropic material with spatially varying elastic properties and negligible stiffness in case of tensile strain. An energy-based minimization problem is implemented to define the distribution and the orienta- tion of the equivalent material for a given compatible load, so as to obtain a compressive state of stress throughout the structural element. A regular mesh of hexahedrons is used to speed up the sensitivity analysis. The capabilities of the approach in predicting no-tension stress solutions in masonry walls is shown, considering dead loads and both in-plane and out-of-plane live loads.

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