- Title
- Stochastic finite element model error for unreinforced masonry walls subjected to one way vertical bending under out-of-plane loading
- Creator
- Isfeld, Andrea C.; Stewart, Mark G.; Masia, Mark J.
- Relation
- 7th International Brick/Block Masonry Conference (17thIB2MaC 2020). Proceedings of the 17th International Brick/Block Masonry Conference (17thIB2MaC 2020) (Krakow, Poland 05-08 July, 2020) p. 144-151
- Relation
- ARC.DP180102334 http://purl.org/au-research/grants/arc/DP180102334
- Publisher Link
- http://dx.doi.org/10.1201/9781003098508
- Publisher
- Taylor & Francis Group
- Resource Type
- conference paper
- Date
- 2020
- Description
- The strength of unreinforced masonry (URM) walls subjected to one way bending under out-of-plane loading (no pre-compression) is known to be affected by the masonry unit tensile bond strength. Factors such as batching, workmanship, and environmental exposure alter the strength of this bond, resulting in spatial variability for any URM assembly. This paper focuses on a preliminary stochastic assessment of clay brick URM walls with spatially variable tensile bond strength subjected to uniformly distributed out-of-plane loads in one-way vertical bending. Stochastic computational modelling combining Finite Element Analysis (FEA) and Monte Carlo Simulation (MCS) is used to account for bond strength variability when estimating the walls ultimate failure loads. Previously, this approach has been used to study the effect of material variability on cracking loads, failure loads, and failure modes of URM walls in one and two-way bending. For this preliminary assessment FEA MCS has been applied to a subset of existing test data for walls with consistent properties constructed by ten different masons. For these walls a 3D non-linear FEA model was developed, followed by a stochastic analysis for which the unit tensile bond strength is spatially varied according to the measured flexural tensile bond strength and its coefficient of variation. For a set of simulations the peak load and load-displacement data was extracted and analysed, showing good agreement with the results of wall test data.
- Subject
- tensile bond strength; unreinforced masonry walls; Finite Element Analysis; out-of-plane loading
- Identifier
- http://hdl.handle.net/1959.13/1439147
- Identifier
- uon:40839
- Identifier
- ISBN:9781003098508
- Language
- eng
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