Abstract
Masonry structures, integral components of architectural heritage, are diffuse worldwide and continue to be interwoven within modern infrastructures. The complex nature of their constituents has driven active research toward understanding their mechanical behavior. Accurately and robustly representing the nature of masonry constituents is essential for structural analysis, design, and preservation tasks. This study adopts an adjustable contact constitutive model recently proposed to simulate bond behavior in masonry assemblages subjected to in-plane shear-compression loading. The adopted contact constitutive model, recently proposed by the authors within the Distinct Element Method (DEM) framework, addresses the intricate behavior of unit-mortar interfaces by employing a piecewise linear softening function controlled by the user to capture the softening regime in tension and shear. Meanwhile, the compressive region of the masonry interfaces is controlled by a compressive cap with a radial return algorithm under the explicit time-marching integration scheme of DEM to implicitly couple the shear and compressive behavior. The performance of the constitutive model was assessed on a set of calcium silicate wall experiments tested under in-plane shear and compression loading and presented a comprehensive variety of failure modes. The experimental and numerical results are compared on each system’s global and local behaviors. The findings underscore the robustness of the proposed contact constitutive model in accurately capturing the complex mechanical response of masonry and highlight its potential for structural analysis and damage prediction of a diverse spectrum of masonry structures.
Original language | English |
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Title of host publication | 18th International Brick and Block Masonry Conference - Proceedings of IB2MaC 2024 |
Editors | Gabriele Milani, Bahman Ghiassi |
Publisher | Springer Science and Business Media Deutschland GmbH |
Pages | 76-92 |
Number of pages | 17 |
ISBN (Print) | 9783031733130 |
DOIs | |
Publication status | Published - 2024 |
Event | 18th International Brick and Block Masonry Conference, IB2MaC 2024 - Birmingham, United Kingdom Duration: 21 Jul 2024 → 24 Jul 2024 |
Publication series
Name | Lecture Notes in Civil Engineering |
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Volume | 613 LNCE |
ISSN (Print) | 2366-2557 |
ISSN (Electronic) | 2366-2565 |
Conference
Conference | 18th International Brick and Block Masonry Conference, IB2MaC 2024 |
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Country/Territory | United Kingdom |
City | Birmingham |
Period | 21/07/24 → 24/07/24 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Keywords
- Contact constitutive model
- Distinct element method
- In-plane shear-compression tests
- Masonry
- Multi-surface plasticity
- Piecewise linear softening