Journal article
Treatment of contact separation in Eulerian high‐speed multimaterial dynamic simulations
International journal for numerical methods in engineering, Vol.100(11), pp.793-813
12/14/2014
DOI: 10.1002/nme.4760
Abstract
SUMMARYA frictionless contact separation treatment in a sharp‐interface Eulerian framework is presented to handle the general situation of high‐speed impact and separation of materials. The algorithm has been developed for an established Eulerian‐based Cartesian grid multimaterial flow code in which the interfaces are tracked in a sharp manner using a standard narrow‐band level set approach. Boundary conditions have been applied using a modified ghost fluid method for elasto‐plastic materials. The sharp‐interface treatment maintains the distinct interacting interfaces without smearing the contact zone while also removing the difficulties associated with Lagrangian moving mesh entities in contact‐separation situations. The algorithm has been tested and verified against experimental and numerical results for three different problems in the high strain rate regime, which involve contact, separation and sliding of materials. Copyright © 2014 John Wiley & Sons, Ltd.
Details
- Title: Subtitle
- Treatment of contact separation in Eulerian high‐speed multimaterial dynamic simulations
- Creators
- N. K Rai - The University of IowaA Kapahi - The University of IowaH. S Udaykumar - The University of Iowa
- Resource Type
- Journal article
- Publication Details
- International journal for numerical methods in engineering, Vol.100(11), pp.793-813
- DOI
- 10.1002/nme.4760
- ISSN
- 0029-5981
- eISSN
- 1097-0207
- Number of pages
- 1
- Language
- English
- Date published
- 12/14/2014
- Academic Unit
- IIHR--Hydroscience and Engineering; Injury Prevention Research Center; Mechanical Engineering
- Record Identifier
- 9984121869602771
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