Imperial College London
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ProfessorBassamIzzuddin

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Computational Structural Mechanics
 
 
 
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Contact

 

+44 (0)20 7594 5985b.izzuddin Website

 
 
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Assistant

 

Ms Ruth Bello +44 (0)20 7594 6040

 
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Location

 

330Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Nordas:2022:10.1016/j.compstruc.2021.106703,
author = {Nordas, AN and Izzuddin, BA},
doi = {10.1016/j.compstruc.2021.106703},
journal = {Computers & Structures},
pages = {1--27},
title = {Translational surface coupling along a line with non-conforming meshes},
url = {http://dx.doi.org/10.1016/j.compstruc.2021.106703},
volume = {260},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In the modelling of large-scale metal structures, comprising plated components intersecting along weld lines, the meshing efficiency and flexibility are limited by the requirements of nodal alignment and compliance of element size, shape and edge orientation throughout the domain. Such limitations necessitate the use of complex transitional meshes in intersection regions and result in highly complex global mesh configurations. This paper presents an original and systematic methodology for surface coupling along an arbitrary 1D interface, which is applicable to any type of 2D and 3D FEs, and which provides a systematic framework for: (i) geometric modelling of weld lines; (ii) coupling of regions with different levels of discretisation detail or element types within a system; and (iii) domain partitioning problems involving computationally heterogeneous partitions. The strategy is based upon a novel coupling element formulation, which uses the fundamental principles of the mortar method and an augmented Lagrangian Multiplier optimisation approach. Particular consideration is given to an element formulation that enforces rigid translational coupling, which has been implemented for employment with co-rotational Reissner-Mindlin shell elements. Various numerical examples are presented to demonstrate the accuracy, versatility and substantial computational benefits of the developed methodology for modelling large-scale metal structural systems.
AU  - Nordas,AN
AU  - Izzuddin,BA
DO  - 10.1016/j.compstruc.2021.106703
EP  - 27
PY  - 2022///
SN  - 0045-7949
SP  - 1
TI  - Translational surface coupling along a line with non-conforming meshes
T2  - Computers & Structures
UR  - http://dx.doi.org/10.1016/j.compstruc.2021.106703
UR  - https://www.sciencedirect.com/science/article/pii/S004579492100225X?via%3Dihub
UR  - http://hdl.handle.net/10044/1/93741
VL  - 260
ER  -
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