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Weighted Potential Methodology for Mixed Mode Cohesive Laws
University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
University of Skövde, The Virtual Systems Research Centre. University of Skövde, School of Technology and Society.
2010 (English)In: Proceedings of the MECOM DEL BICENTENARIO, IX Argentinian Congress on Computational Mechanics / [ed] Eduardo Dvorkin, Marcela Goldschmit, Mario Storti, Asociación Argentina de Mecánica Comptacional , 2010, 8355-8374 p.Conference paper, (Refereed)
Abstract [en]

A  weighted  potential  methodology  is  developed  by  utilizing  pure  mode  I  and mode  II  energy  release  rate  experiments  to  determine  the  traction-separation  relations  for thin  adhesive  layers.  The  experimentally  measured  energy  release  rates  act  as  boundary conditions  for  developing  a  weighted  potential  function.  Thus,  the  tractions  for  any  mixed mode loading can be established.  Changes of mode mix during an experiment can also be captured  by  the  law  since  every  mixed  mode  variation  is  given  by  the  potential  function. Furthermore,  by  use  of  an  inverse  J-integral  approach  and  damage  type  variables,  the traction-separation  relations  for  any  mode  mix  can  be  approximated  by  use  of  pure  mode experiments.  Numerical  simulations  show  the  applicability  of  the  methodology.  The  results indicate  that  the  methodology  is  promising  when  simulating  the  constitutive  behavior  of adhesive layers.

Place, publisher, year, edition, pages
Asociación Argentina de Mecánica Comptacional , 2010. 8355-8374 p.
Series
Mecánica Computacional, Volume XXIX. Number 85. Modeling of materials for coupled problems (B)
Keyword [en]
Adhesive layer, Cohesive law, Fracture, Mixed-mode
National Category
Engineering and Technology
Research subject
Technology
Identifiers
URN: urn:nbn:se:his:diva-4604OAI: oai:DiVA.org:his-4604DiVA: diva2:390036
Conference
MECOM DEL BICENTENARIO: CILAMCE 2010 (XXXI Iberian-Latin-American Congress on Computational Methods in Engineering) and MECOM 2010 (IX Argentine Congress on Computational Mechanics and II South American Congress on Computational Mechanics). Buenos Aires, Argentina, 15-18 November 2010
Available from: 2011-01-20 Created: 2011-01-20 Last updated: 2013-09-09Bibliographically approved

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