On interpreting load paths and identifying a load bearing topology from finite element analysis

Kelly, D., Reidsema, C., Bassandeh, A., Pearce, G. and Lee, M. (2011) On interpreting load paths and identifying a load bearing topology from finite element analysis. Finite Elements in Analysis and Design, 47 8: 867-876. doi:10.1016/j.finel.2011.03.007


Author Kelly, D.
Reidsema, C.
Bassandeh, A.
Pearce, G.
Lee, M.
Title On interpreting load paths and identifying a load bearing topology from finite element analysis
Journal name Finite Elements in Analysis and Design   Check publisher's open access policy
ISSN 0168-874X
1872-6925
Publication date 2011-08-01
Sub-type Article (original research)
DOI 10.1016/j.finel.2011.03.007
Open Access Status Not yet assessed
Volume 47
Issue 8
Start page 867
End page 876
Total pages 10
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Subject 2603 Analysis
2604 Applied Mathematics
2200 Engineering
1704 Computer Graphics and Computer-Aided Design
Abstract Load paths can be mapped from vector plots of 'pointing stress vectors'. They define a path along which a load remains constant as it traverses the solution domain. This definition and a procedure for plotting the paths have been presented elsewhere. An iterative algorithm that assigns high modulus to the elements on the path to define a load bearing topology has also been presented. In this paper properties of the plots are identified. They enable a designer to interpret the structural behaviour. Simple structural components for each type of load transfer are defined. Using these properties and components, a procedure to sketch the topology from the paths is proposed. The procedure is expected to be useful at the conceptual phase of the design process. The topologies sketched are compared with topologies defined by the iterative algorithm. Application to a bolted joint, a racing car body and a yacht hull demonstrate the usefulness of the paths to first interpret the structural behaviour and then define a load bearing topology.
Formatted abstract
Load paths can be mapped from vector plots of ‘pointing stress vectors’. They define a path along which a load remains constant as it traverses the solution domain. This definition and a procedure for plotting the paths have been presented elsewhere. An iterative algorithm that assigns high modulus to the elements on the path to define a load bearing topology has also been presented. In this paper properties of the plots are identified. They enable a designer to interpret the structural behaviour. Simple structural components for each type of load transfer are defined. Using these properties and components, a procedure to sketch the topology from the paths is proposed. The procedure is expected to be useful at the conceptual phase of the design process. The topologies sketched are compared with topologies defined by the iterative algorithm. Application to a bolted joint, a racing car body and a yacht hull demonstrate the usefulness of the paths to first interpret the structural behaviour and then define a load bearing topology.
Keyword Optimization
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 8 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 22 Sep 2011, 21:53:08 EST by Katie Gollschewski on behalf of School of Mechanical and Mining Engineering