Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-26T12:52:36.794Z Has data issue: false hasContentIssue false
  • English
  • Français

A Simple Method for Contact modelling in an Arbitrary frame of Reference within multi-Physics Software

Published online by Cambridge University Press:  21 December 2012

D. M. Espino ,
D.E.T. Shepherd  and
D.W.L. Hukins
D. M. Espino*
Affiliation:
School of Mechanical Engineering, University of Birmingham, Birmingham, UK B15 2TT
D.E.T. Shepherd
Affiliation:
School of Mechanical Engineering, University of Birmingham, Birmingham, UK B15 2TT
D.W.L. Hukins
Affiliation:
School of Mechanical Engineering, University of Birmingham, Birmingham, UK B15 2TT
*
*Corresponding author ([email protected])
Get access

Abstract

A method to simulate contact between two boundaries of structures which are not aligned to predefined axes when using Comsol Multi-physics (v3.3, Comsol Ltd, Cambridge, UK) is presented. This method was developed because of limitations in the existing default contact modelling. Some of these limitations were recently addressed in a separate study; however, the method exploited symmetry across an axis of the coordinate system. The method presented here enables contact modelling with arbitrarily aligned structures within such a coordinate system. The contact method presented is then applied to a simple model with two deformable structures that come into contact, and compared over a range of positions. Results show a minimal variation in peak stress and contact pressure with model orientation, demonstrating that results are independent of orientation. Therefore, the contact method enables contact simulations in Comsol Multi-physics without assuming symmetry about an axis for contract. The method is compatible with the true transient contact method defined.

Keywords

Contact modellingFinite element analysisHertzian contactLarge strain
Type
Technical Note
Information
Journal of Mechanics , Volume 29 , Issue 3 , September 2013 , pp. N9 - N14
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Espino, D. M., Shepherd, D. E. T. and Hukins, D. W. L, “Development of a Transient Large Strain Contact Method for Biological Heart Valve Simulations,” Computer Methods in Biomechanics and Biomedical Engineering, In Press DOI: 10.1080/ 10255842.2011.623676 (2012).Google Scholar
2.Espino, D. M., Shepherd, D. E. T. and Hukins, D. W. L., “Transient Large Strain Contact Modelling: A Comparison of Contact Technique for Simultaneous Fluid-Structure Interaction,” Computers and Fluids, Submitted (2011).Google Scholar
3.Espino, D. M., Shepherd, D. E. T. and Hukins, D. W. L., “Evaluation of a Transient, Simultaneous, Arbitrary Lagrange Euler Based Multi-Physics Method for Simulating the Mitral Heart Valve,” Computer Methods in Biomechanics and Biomedical Engineering, In Press DOI: 10.1080/10255842.2012. 688818 (2012).Google Scholar
4.Al-Atabi, M., Espino, D. M., Hukins, D. W. L. and Buchan, K.G., “Biomechanical Assessment of Surgical Repair of the Mitral Valve,” Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 226, pp. 275–287 (2012).Google Scholar
5.Kaur, H., “Determination of Material Properties of Natural Heart Valves,” MEng Thesis, School of Mechanical Engineering, University of Birmingham, Birmingham, UK (2007).Google Scholar
6.Millard, L., Espino, D. M., Shepherd, D. E. T., Hukins, D. W. L. and Buchan, K. G., “Mechanical Properties of Chordae Tendineae: Variation with Chordal Type and Age,” Journal of Mechanics in Medicine and Biology, 11, pp. 221–230 (2011).CrossRefGoogle Scholar
7.Pennec, F., Achkar, H., Peyrou, D., Plana, R., Pons, P. and Courtade, F., “Verification of Contact Modeling with Comsol Multiphysics Software,” EU-ROSIM: Federation of European Simulation Societies, Slovenia (2007).Google Scholar
8.Al-Atabi, M., Espino, D. M. and Hukins, D. W. L., “Computer and Experimental Modelling of Blood Flow Through the Mitral Valve of the Heart,” Journal of Biomechanical Science and Engineering, 5, pp. 78–84 (2010).Google Scholar
9.Ohman, C., Espino, D. M., Heinmann, T., Baleani, M., Delingette, H. and Viceconti, M., “Subject-Specific Knee Joint Model: Design of an Experiment to Validate a Multi-Body Finite Element Model,” Visual Computer, 27, pp. 153–159 (2011).CrossRefGoogle Scholar
10.Ghosh, S., Bowen, J., Jiang, K., Espino, D. M. and Shepherd, D. E. T., Investigation of Techniques for the Measurement of Articular Cartilage Surface Roughness, Micron, In Press. DOI: http://dx.doi.org/ 10.1016/j.micron.2012.06.007 (2012).Google ScholarPubMed