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Numerical simulations of adhesive squeeze flow: A review

Aparecida Silva, Lorraine and Espinosa, Christine and da Silva, Lucas F.M. and Paroissien, Eric and Lachaud, Frédéric Numerical simulations of adhesive squeeze flow: A review. (2019) In: AB2019 5th International Conference on Structural Adhesive Bonding, 11 July 2019 - 12 July 2019 (Porto, Portugal).

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Abstract

Debonding on demand structural adhesives is becoming a relevant topic for, in particular, recycling strategy issues. A debonding methodology has been developed by the FEUP using Thermally Expandable Particles (TEP). In order to enhance the properties of the material, it is expected to control the distribution of the TEPs in the uncured adhesive. After dosage and mixing, the adhesive is applied manually or automatically on a substrate. At this point starts the fluid structure interaction (FSI), where the substrates are approached and fixed before the last step, when the adhesives becomes solid, by the process of curing. To optimize the on demand debonding, it is first necessary to control the distribution of the fillers in this uncured phase. We are interested here in evaluating the different numerical methods that are used or could be used to simulate the approach of substrates and the squeezing process of charged uncured adhesive. Grid-based numerical methods are widely used for fluid simulations, either using Lagrangian or Eulerian reference frame, including the finite difference method (FDM), finite volume method (FVM) or the finite element method (FEM). In this study, we also consider the Smooth Particle Hydrodynamics (SPH) method which is meshfree method associated with particulate discretization of the matter and the movement. The knowledge of these methods allows addressing the squeeze flow problem in order to obtain the final distribution of the adhesive and inclusions in the joint.

Item Type:Conference or Workshop Item (Other)
HAL Id:hal-03591462
Audience (conference):International conference without published proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Universidade do Porto - UP (PORTUGAL)
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Deposited On:28 Feb 2022 14:36

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