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Macorini, L.; Izzuddin, B. A.

A non‐linear interface element for 3D mesoscale analysis of brick‐masonry structures

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  • Medientyp: E-Artikel
  • Titel: A non‐linear interface element for 3D mesoscale analysis of brick‐masonry structures
  • Beteiligte: Macorini, L.; Izzuddin, B. A.
  • Erschienen: Wiley, 2011
  • Erschienen in: International Journal for Numerical Methods in Engineering, 85 (2011) 12, Seite 1584-1608
  • Sprache: Englisch
  • DOI: 10.1002/nme.3046
  • ISSN: 0029-5981; 1097-0207
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: AbstractThis paper presents a novel interface element for the geometric and material non‐linear analysis of unreinforced brick‐masonry structures. In the proposed modelling approach, the blocks are modelled using 3D continuum solid elements, whereas the mortar and brick–mortar interfaces are modelled by means of the 2D non‐linear interface element. This enables the representation of any 3D arrangement for brick‐masonry, accounting for the in‐plane stacking mode and the through‐thickness geometry, and importantly it allows the investigation of both the in‐plane and the out‐of‐plane responses of unreinforced masonry panels. A co‐rotational approach is employed for the interface element, which shifts the treatment of geometric non‐linearity to the level of discrete entities, and enables the consideration of material non‐linearity within a simplified local framework employing first‐order kinematics. In this respect, the internal interface forces are modelled by means of elasto‐plastic material laws based on work‐softening plasticity and employing multi‐surface plasticity concepts. Following the presentation of the interface element formulation details, several experimental–numerical comparisons are provided for the in‐plane and out‐of‐plane static behaviours of brick‐masonry panels. The favourable results achieved demonstrate the accuracy and the significant potential of using the developed interface element for the non‐linear analysis of brick‐masonry structures under extreme loading conditions. Copyright © 2010 John Wiley & Sons, Ltd.