Imperial College London
Alternate

ProfessorLorenzoMacorini

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Structural Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6078l.macorini

 
 
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Assistant

 

Ms Ruth Bello +44 (0)20 7594 6040

 
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Location

 

325Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Panto:2022:10.1007/s00466-021-02118-x,
author = {Panto, B and Macorini, L and Izzuddin, BA},
doi = {10.1007/s00466-021-02118-x},
journal = {Computational Mechanics},
pages = {865--890},
title = {A two-level macroscale continuum description with embedded discontinuities for nonlinear analysis of brick/block masonry},
url = {http://dx.doi.org/10.1007/s00466-021-02118-x},
volume = {69},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A great proportion of the existing architectural heritage, including historical and monumental constructions,  is  made  of  brick/block  masonry.  This  material  shows  a  strong  anisotropic behaviour resulting from the specific arrangement of units and mortar joints, which renders the accurate imulation of the masonry response a complex task. In general, mesoscale modelling approaches provide realistic predictions due to the explicit representation of the masonry bond characteristics.  However,  these  detailed  models  are  very  computationally  demanding  and mostly  unsuitable  for  practical  assessment  of  large  structures.  Macroscale  models  are  more efficient, but they require complex calibration procedures to evaluate model material parameters. This paper presents an advanced continuum macroscale model based on a two-scale nonlinear description for masonry material which requires only simple calibration at structural scale. A continuum strain field is considered at the macroscale level, while a 3D distribution of embedded  internal  layers  allows  for  the  anisotropic  mesoscale  features  at  the  local  level.  A damage-plasticity  constitutive  model  is  employed  to  mechanically  characterise  each  internal layer  using  different  material  properties  along  the  two  main  directions  on  the  plane  of  the masonry  panel  and  along  its  thickness.  The  accuracy  of  the  proposed acroscale  model  is assessed considering the response of structural walls previously tested under in-plane and out-of-plane loading and modelled using the more refined mesoscale strategy. The results achieved confirm  the  significant  potential  and  the  ability  of  the  proposed  macroscale  description  for brick/block  masonry  to  provide  accurate  and  efficient  response  predictions  under  different monotonic and cyclic loading conditions.
AU  - Panto,B
AU  - Macorini,L
AU  - Izzuddin,BA
DO  - 10.1007/s00466-021-02118-x
EP  - 890
PY  - 2022///
SN  - 0178-7675
SP  - 865
TI  - A two-level macroscale continuum description with embedded discontinuities for nonlinear analysis of brick/block masonry
T2  - Computational Mechanics
UR  - http://dx.doi.org/10.1007/s00466-021-02118-x
UR  - https://link.springer.com/article/10.1007/s00466-021-02118-x
UR  - http://hdl.handle.net/10044/1/92767
VL  - 69
ER  -
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