Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. An isogeometric method for linear nearly-incompressible elasticity with local stress projection
 
research article

An isogeometric method for linear nearly-incompressible elasticity with local stress projection

Antolin Sanchez, Pablo  
•
Bressan, Andrea
•
Buffa, Annalisa  
Show more
2017
Computer Methods in Applied Mechanics and Engineering

In this paper, we propose an isogeometric method for solving the linear nearly-incompressible elasticity problem. The method is similar to the (B) over bar formulation where the volumetric strain is projected on a lower degree spline space in order to prevent volumetric locking. In our method, we adopt a local projection on a coarser mesh, chosen in order to guarantee optimal convergence. Moreover the locality of the projector allows to maintain the sparsity of the stiffness matrix, that is, the efficiency of the method. The analysis of the method is based on the inf-sup stability of the associated mixed formulation via a macro-element technique for spline functions. The numerical tests confirm the theory of the method. (C) 2016 Elsevier B.V. All rights reserved.

  • Details
  • Metrics
Type
research article
DOI
10.1016/j.cma.2016.09.033
Web of Science ID

WOS:000395952500030

Author(s)
Antolin Sanchez, Pablo  
Bressan, Andrea
Buffa, Annalisa  
Sangalli, Giancarlo
Date Issued

2017

Publisher

Elsevier Science Sa

Published in
Computer Methods in Applied Mechanics and Engineering
Volume

316

Start page

694

End page

719

Subjects

Nearly-incompressible elasticity

•

Inf-sup stability

•

Isogeometric analysis

•

B-method

•

Splines and NURBS

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
MNS  
Available on Infoscience
April 3, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/136235
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés