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Simulation of adhesive squeeze flow using smoothed particle hydrodynamics

Aparecida Silva, Lorraine and Espinosa, Christine and da Silva, Lucas F.M. and Paroissien, Eric and Lachaud, Frédéric Simulation of adhesive squeeze flow using smoothed particle hydrodynamics. (2019) In: CM4P - Eccomas Thematic Conference - Computational Methods in Multi-scale, Multi-uncertainty and Multi-physics Problems, 15 July 2019 - 17 July 2019 (Porto, Portugal). (Unpublished)

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In the last few years, so important than an optimized assembly is the Design for Disassembly or Demise (D4D). This conception has been implemented in many industries, for example, in the automobile with the recycling, recovery and reuse of End-of-Life Vehicles (ELVs) and in the aerospace with the processing of the remaining materials for future aircrafts or other industrial applications. Besides, even with the significant progress in that field there are some still recycling challenges, as examples, composite materials and polymers. Among the many procedures for disassembling materials presented in the literature, the technique using Thermally Expandable Particles (TEP) developed by the FEUP is attractive due to its large potential application field. The process of assembly can be divided into four steps: preparation, application, approach and curing. During the approach, the initial spot of adhesive is squeezed between the substrates. Depending on its compressibility, viscosity and on the roughness of the substrates, the final form of the adhesive will take and keep the shape of the mold, or even bleed in the free space between the substrates. In the first case the thickness and even the particle distribution will be approximately uniform in the squeezed zone while they will not, may be, in the second case. In this work we are interested in the simulation of the approach to predicting the final form of the adhesive using the smoothed particle hydrodynamics (SPH). The SPH is a meshfree method proposed by Gingold and Monaghan in 1964 which has been the purpose of a lot of enhancements and represents today an elegant alternative solution for numerical simulations of fluids. Simulating free surface movements or possible separation or mixture of different fluids is indeed very easy because the SPH method is a mesh free technique that computes interactions between particles in a local neighborhood at chosen interval during deformation of the material. The knowledge of the approach process allows addressing the squeeze flow problem in order to optimize the adhesive final distribution and the TEPs distribution and in the future the disassembly optimization.

Item Type:Conference or Workshop Item (Other)
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)
Laboratory name:
Deposited On:28 Feb 2022 15:31

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