Irzal, F., Remmers, J.J.C., Verhoosel, C.V. et al. (1 more author) (2014) An isogeometric analysis Bézier interface element for mechanical and poromechanical fracture problems. International Journal for Numerical Methods in Engineering, 97 (8). pp. 608-628. ISSN 0029-5981
Abstract
Interface elements are a powerful tool for modelling discontinuities. Herein, we develop an interface element that is based on the isogeometric analysis concept. Through Bézier extraction, the novel interface element can be casted in the same format as conventional interface elements. Consequently, the isogeometric interface element can be implemented in a straightforward manner in an existing finite element software by a mere redefinition of the shape functions. The interface elements share the advantages of isogeometric continuum elements in that they can exactly model the geometry. On the other hand, they inherit the simplicity of conventional interface elements, but also some deficiencies, such as the occurrence of traction oscillations when a high interface stiffness is used. The extension towards poroelasticity is rather straightforward, and in this situation, the smoother flow profiles and the ensuing preservation of local mass balance are additional advantages. These are demonstrated at the hand of some example problems.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 John Wiley & Sons, Ltd. This is an author produced version of a paper subsequently published in International Journal for Numerical Methods in Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | cohesive zone model; crack propagation; isogeometric analysis; B-splines; Bézier extraction |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 14 Mar 2016 12:35 |
Last Modified: | 04 Nov 2017 15:29 |
Published Version: | http://dx.doi.org/10.1002/nme.4615 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/nme.4615 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:96216 |