3D macroelement approach for nonlinear FE analysis of URM components subjected to in-plane and out-of-plane cyclic loading
| Autor: | Bassam A. Izzuddin, Lorenzo Macorini, Ivo Caliò, Eleni Minga |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Finite element method
Materials science 0211 other engineering and technologies Unreinforced masonry 020101 civil engineering Mixed-mode failure 02 engineering and technology Bending Kinematics 0915 Interdisciplinary Engineering Civil Engineering 0905 Civil Engineering Physics::Geophysics 0201 civil engineering Computer Science::Computational Engineering Finance and Science 021105 building & construction In-plane and out-of-plane cyclic loading 0912 Materials Engineering Civil and Structural Engineering business.industry Structural engineering Masonry Shear (sheet metal) Cracking Nonlinear system 3D macroelement Nonlinear analysis Unreinforced masonry building business |
| Zdroj: | Engineering Structures. 220:110951 |
| ISSN: | 0141-0296 |
| DOI: | 10.1016/j.engstruct.2020.110951 |
| Popis: | The paper presents a novel 3D macroelement approach for efficient and accurate nonlinear analysis of unreinforced masonry components subjected to in-plane and out-of-plane cyclic loading. A macroscopic description for masonry is employed, where macroelements, consisting of deformable blocks interacting through cohesive interfaces, are used to represent large portions of masonry walls, enhancing computational efficiency. Enriched kinematic characteristics are adopted for the homogeneous blocks, where in-plane shear and out-of-plane bending modes are described by two independent Lagrangian parameters. Moreover, a detailed material model for the nonlinear interfaces connecting adjacent elements enables an accurate representation of complex failure modes and cracking patterns in masonry walls. As a result, the proposed FE strategy can be employed for accurate response predictions of large masonry structures subjected to cyclic loading conditions. The accuracy of the macroelement approach is validated through comparisons against results of experimental tests of solid and perforated masonry walls under in-plane and out-of-plane loading. |
| Databáze: | OpenAIRE |
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