Pre-print version: Pulatsu, B., Gonen, S., Erdogmus, E., Lourenço, P.B., Lemos, J.V., and Prakash R., “In-Plane Structural Performance of Dry-Joint Stone Masonry Walls A Spatial and Non-Spatial Stochastic Discontinuum Analysis.”, Engineering Structures (2021). DOI: 10.1016/j.engstruct.2021.112620 1 In-Plane Structural Performance of Dry-Joint Stone Masonry Walls: A Spatial and Non-Spatial Stochastic Discontinuum Analysis Bora Pulatsu a, *, Semih Gonen b , Ece Erdogmus a , Paulo B. Lourenço c , Jose V. Lemos d and Ravi Prakash e Abstract: In this study, the in-plane structural behavior, capacity, and performance of dry-joint stone masonry walls (DJ- SMWs) and the effects of the vertical stress level on these factors are investigated via a stochastic discontinuum analysis that considers the material uncertainty. A discontinuum type of analysis is performed based on the discrete element method (DEM), where each stone masonry unit is explicitly represented in the computational model. To better simulate the cracking and shear failure modes within the stone units, a coupled fracture energy- based contact constitutive model is implemented into a commercial discrete element code, 3DEC. First, the proposed modeling approach is validated by comparing to experimental findings in literature. Then, the approach is used to explore the failure mechanism and the force–displacement behavior of DJ-SMWs, considering different vertical stress levels and material properties. The results of the novel modeling strategy provide a better understanding of the progressive collapse mechanism of DJ-SMWs and the influence of the vertical stress level. Furthermore, the outcomes of this research indicate the major role of the frictional resistance at the joints in the safety and performance assessment of the dry-joint load-bearing masonry walls. Finally, important inferences are made regarding the non-spatial and spatial stochastic discontinuum analysis. Keywords: DEM; Dry-joint masonry wall; Contact mechanics; Material uncertainty; Stochastic analysis; Uncertainty quantification a Carleton University, Civil and Environmental Engineering, Ottawa, ON, Canada b Oslo Metropolitan University, Department of Civil Engineering and Energy Technology, Oslo, Norway c Institute of Sustainability and Innovation in Structural Engineering, University of Minho, Portugal d LNEC, Lisbon, Portugal e Indian Institute of Technology Jodhpur, India * Corresponding author: [email protected]
In-Plane Structural Performance of Dry-Joint Stone Masonry Walls: A Spatial and Non-Spatial Stochastic Discontinuum Analysis
May 20, 2023
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