Reismüller, R., Lukacevic, M., Pech, S., Jäger, A., & Füssl, J. (2023). A numerical unit cell model for predicting the failure stress state of vertically perforated clay block masonry under arbitrary in-plane loads. Engineering Structures, 293, Article 116557. https://doi.org/10.1016/j.engstruct.2023.116557
E202-02 - Forschungsbereich Struktursimulation und Ingenieurholzbau E202 - Institut für Mechanik der Werkstoffe und Strukturen
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Journal:
Engineering Structures
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ISSN:
0141-0296
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Date (published):
15-Oct-2023
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Number of Pages:
16
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Publisher:
Elsevier
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Peer reviewed:
Yes
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Keywords:
Failure surfaces; Finite element method; In-plane loading; Masonry; Unit cell; Vertically perforated clay block; XFEM
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Abstract:
As vertically perforated clay block masonry advances into more demanding building categories, knowledge of the effective masonry strength under different loading states becomes crucial. However, experimentally identifying macroscopic failure surfaces for such masonry requires a massive effort. In this study, we propose a FEM-based simulation concept to predict failure stress states of masonry under arbitrary in-plane loading. The proposed concept is validated using seven experiments from the literature. Subsequently, subjecting the validated model to various load cases allows for deriving a failure surface comparable to the Rankine–Hill surface. Thus, by applying the presented concept, we can effectively generate macroscopic failure surfaces for any perforated clay block design.
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Project title:
Entwicklung virtueller Labore zur Optimierung von Ziegelmauerwerk unter Berücksichtigung des Produktionsprozesses: 865067 (Wienerberger AG; FFG - Österr. Forschungsförderungs- gesellschaft mbH)