Fibre embedding in aluminium alloy 3003 using ultrasonic consolidation process - thermomechanical analyses

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Amir, Muhammad and Ghassemieh, Elaheh (2011) Fibre embedding in aluminium alloy 3003 using ultrasonic consolidation process - thermomechanical analyses. The International Journal of Advanced Manufacturing Technology, 54 (9-12). pp. 182-202. ISSN 1433-3015 (https://doi.org/10.1007/s00170-010-3007-6)

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Abstract

This work presents a computational framework based on finite element methods to simulate the fibre-embedding process using ultrasonic consolidation process. The computational approach comprises of a material model which takes into account thermal and acoustic softening effects and a friction model which indicates the realistic friction behaviour at the interfaces. The derived material model and developed friction model have been incorporated in finite element model. Using the implemented material and friction model, thermo-mechanical analyses of embedding of fibre in aluminium alloy 3003 has been performed. Effect of different process parameters, such as velocity of sonotrode, displacement amplitude of ultrasonic vibration and applied loads, is studied and compared with the experimental results. The presented work has specially focused on the quality of the developed weld which could be evaluated by the friction work and the coverage of the fibre which is estimated by the plastic flow around the fibre. The computed friction work obtained from the thermomechanial analyses performed in this study show a similar trend as that of the experimentally found fracture energies.

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