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Weighted Potential Methodology for Mixed Mode Cohesive Laws
2010 (English)In: Proceedings of the MECOM DEL BICENTENARIO, IX Argentinian Congress on Computational Mechanics / [ed] Asociación Argentina de Mecánica Comptacional, 2010Conference 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
2010.
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:hj:diva-24124OAI: oai:DiVA.org:hj-24124DiVA: diva2:726108
Conference
MECOM DEL BICENTENARIO, IX Argentinian Congress on Computational Mechanics
Available from: 2014-06-17 Created: 2014-06-17 Last updated: 2015-11-13

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