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Modelling dynamic fracture of thin shells filled with fluid: a fully SPH model

Published online by Cambridge University Press:  09 July 2008

Alain Combescure ,
Bertrand Maurel  and
Serguei Potapov
Alain Combescure
Affiliation:
LaMCoS UMR CNRS 5259 INSA Lyon, 18–20 allée des sciences, 69621 Villeurbanne, France
Bertrand Maurel
Affiliation:
LaMCoS UMR CNRS 5259 INSA Lyon, 18–20 allée des sciences, 69621 Villeurbanne, France Électricité de France, Direction des études et recherches, 1 avenue du Général de Gaulle, 92141 Clamart Cedex, France
Serguei Potapov
Affiliation:
Électricité de France, Direction des études et recherches, 1 avenue du Général de Gaulle, 92141 Clamart Cedex, France
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Abstract

This paper is devoted to the description of a new full MLS SPH modelisation of rupture of thin shell filled with fluid and the prediction on consecutive fluid loss though the fracture. The paper first presents an efficient and controlled model for elastoplastic rupture of thin shells by a single layer of SPH balls. The proposed model controls as well static and dynamic instabilities using two basic ingredients: additional stress points to control the hourglass like instabilities and extend the Monhagan viscosity control method to shear and bending components of the generalized efforts. The fluid is modeled using standard SPH fluid model. The interaction is modeled using pin-balls method which is very natural in this type of formulation. Application examples are presented.

Keywords

SPHfluid-structure interactionthin shellsplasticityrupturepin ballsSPHinteraction fluide-structure interactioncoques mincesplasticitérupturepin balls
Type
Research Article
Information
Mechanics & Industry , Volume 9 , Issue 2 , March 2008 , pp. 167 - 174
Copyright
© AFM, EDP Sciences, 2008

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