Abstract
Generic helical strand cables are used in many engineering applications including overhead lines, suspension bridges and subsea mooring lines. Accurate failure prediction of these cables requires detailed assessment
of the stress concentrations at wire contact points. Finite element models of helical strands typically discretise wires into 3D solid elements. However, generating a suitably refined mesh capable of capturing stress concentrations leads to impractically large models. This paper proposes a submodelling procedure asa computationally efficient method to examine stress concentrations at wire contact points. A global model is developed first where computational homogenisation is employed to exploit the geometric periodicity of helical strands. A local finite element model of the critical contact region is subsequently constructed to determine the contact stresses. The submodel indicates stress concentrations are an order of magnitude larger than nominal wire axial stresses.
of the stress concentrations at wire contact points. Finite element models of helical strands typically discretise wires into 3D solid elements. However, generating a suitably refined mesh capable of capturing stress concentrations leads to impractically large models. This paper proposes a submodelling procedure asa computationally efficient method to examine stress concentrations at wire contact points. A global model is developed first where computational homogenisation is employed to exploit the geometric periodicity of helical strands. A local finite element model of the critical contact region is subsequently constructed to determine the contact stresses. The submodel indicates stress concentrations are an order of magnitude larger than nominal wire axial stresses.
Original language | English |
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Title of host publication | Proceedings of the UK Association for Computational Mechanics UKACM Annual Conference 2022 |
Editors | Jelena Ninic, Matteo Icardi, Kris van der Zee, Fangying Wang |
Pages | 1-4 |
Publication status | Published - 22 Apr 2022 |
Event | UK Association for Computational Mechanics - Annual Conference 2022 - University of Nottingham, Nottingham, United Kingdom Duration: 20 Apr 2022 → 22 Apr 2022 https://www.ukacm2022.ukacm.org/ |
Conference
Conference | UK Association for Computational Mechanics - Annual Conference 2022 |
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Abbreviated title | UKACM 2022 |
Country/Territory | United Kingdom |
City | Nottingham |
Period | 20/04/22 → 22/04/22 |
Internet address |
Keywords
- Submodelling
- Computational homogenisation
- Cables
- Contact modelling
Research Beacons, Institutes and Platforms
- Advanced materials
- Energy
- Sustainable Futures