Micromechanical modelling of mortar joints and brick-mortar interfaces in masonry Structures: A review of recent developments
Micromechanical modelling of mortar joints and brick-mortar interfaces in masonry Structures: A review of recent developments
Suitable numerical models of masonry structures are very important in their response evaluation under various loading events. Masonry is a heterogeneous material, made of mortar and masonry units, and joined together by interfaces. Constitutive models of mortar joints and masonry-mortar interfaces play a crucial role in achieving high-fidelity numerical models for masonry structures. Hence, this review paper particularly collates the most commonly available constitutive models of mortar joints and brick-mortar interfaces in the literature. The previous experimental studies on mechanical characteristics of mortar joints and brick-mortar interfaces are first discussed in detail. The existing constitutive models developed based on theory of plasticity, fracture mechanics, and damage theory are then mathematically described, and their strengths and shortcomings are fully explained. It is found that the literature lacks reliable experimental calibration of the current constitutive models, and combined loading experiments are required for better understanding of nonlinear behaviour of mortar joints and brick-mortar interfaces. It is also seen that most current constitutive models are two dimensional, use many theoretical assumptions and hypotheses with no experimental verifications, and do not account for three dimensional irregular interface bonding, bonding degradation, and relevant post-yielding deformational pattern. Effects of unloading-reloading, dilatancy, surface asperities, and crack formations also need further investigations.
Brick-mortar interface, Constitutive models, Masonry structures, Micromechanical modelling, Mortar joints
831-844
Shadlou, Masoud
8e3529db-0c42-46b0-b398-83874c343b31
Ahmadi, Ehsan
f1994ae0-2b3e-43c9-a595-032e801aae70
Kashani, Mohammad
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
February 2020
Shadlou, Masoud
8e3529db-0c42-46b0-b398-83874c343b31
Ahmadi, Ehsan
f1994ae0-2b3e-43c9-a595-032e801aae70
Kashani, Mohammad
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Shadlou, Masoud, Ahmadi, Ehsan and Kashani, Mohammad
(2020)
Micromechanical modelling of mortar joints and brick-mortar interfaces in masonry Structures: A review of recent developments.
Structures, 23, .
(doi:10.1016/j.istruc.2019.12.017).
Abstract
Suitable numerical models of masonry structures are very important in their response evaluation under various loading events. Masonry is a heterogeneous material, made of mortar and masonry units, and joined together by interfaces. Constitutive models of mortar joints and masonry-mortar interfaces play a crucial role in achieving high-fidelity numerical models for masonry structures. Hence, this review paper particularly collates the most commonly available constitutive models of mortar joints and brick-mortar interfaces in the literature. The previous experimental studies on mechanical characteristics of mortar joints and brick-mortar interfaces are first discussed in detail. The existing constitutive models developed based on theory of plasticity, fracture mechanics, and damage theory are then mathematically described, and their strengths and shortcomings are fully explained. It is found that the literature lacks reliable experimental calibration of the current constitutive models, and combined loading experiments are required for better understanding of nonlinear behaviour of mortar joints and brick-mortar interfaces. It is also seen that most current constitutive models are two dimensional, use many theoretical assumptions and hypotheses with no experimental verifications, and do not account for three dimensional irregular interface bonding, bonding degradation, and relevant post-yielding deformational pattern. Effects of unloading-reloading, dilatancy, surface asperities, and crack formations also need further investigations.
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More information
Accepted/In Press date: 16 December 2019
e-pub ahead of print date: 8 January 2020
Published date: February 2020
Additional Information:
Funding Information:
The authors acknowledge the support received by the UK Engineering and Physical Sciences Research Council (EPSRC) for a Global Challenges Research Fund [grant number EP/P028926/1 : Seismic Safety and Resilience of Schools in Nepal].
Publisher Copyright:
© 2019 Institution of Structural Engineers
Keywords:
Brick-mortar interface, Constitutive models, Masonry structures, Micromechanical modelling, Mortar joints
Identifiers
Local EPrints ID: 439361
URI: http://eprints.soton.ac.uk/id/eprint/439361
ISSN: 2352-0124
PURE UUID: bc4d994a-1140-42b3-a8c7-f28e79b46e31
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Date deposited: 17 Apr 2020 16:30
Last modified: 17 Mar 2024 03:46
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Author:
Masoud Shadlou
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