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Finite Element Modelling and Validation of Thermomechanical Behaviour for Layered Aluminium Parts Made by Composite Metal Foil Manufacturing

Anglia Ruskin University, Chelmsford, Essex CM1 1SQ, UK
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J. Compos. Sci. 2018, 2(4), 68; https://doi.org/10.3390/jcs2040068
Received: 7 November 2018 / Revised: 29 November 2018 / Accepted: 10 December 2018 / Published: 12 December 2018
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Abstract

The paper presents finite element modelling and thermomechanical analysis on the tensile properties of layered aluminium 1050 metal foil parts made by composite metal foil manufacturing. In this paper, a three-dimensional finite element model was developed and validated through experiments to analyse thermal effects on the tensile properties of 200-μm-thick aluminium 1050 metal foils. The effects of thermal stress and strain were studied by carrying out transient thermal analysis on the heated plates used to join the 200-μm-thick metal foils together using a special brazing paste. A standard tensile test at ambient temperature was carried out on the resulting layered dog bone specimens to analyse the thermal effects on the individual layers of metal. The investigations were precisely designed to assess the effect of heat provided amid the brazing operation to join the metal thwarts together as a layered structure and whether it assumed a part in affecting the tensile properties of the final products when contrasted to a solid aluminium 1050 dog bone specimen of the same dimensions. Corrosion testing was also carried out on dog bone specimens made from varying thickness foils (50 μm, 100 μm, and 200 μm) of aluminium 1050 to assess the effect of corrosion on the tensile strength and elongation. The results showed that the specimens did not face the problem of galvanic corrosion of the foil–bond interface. Microstructural analysis was also carried out to analyse the fracture modes of the tested specimens after corrosion testing. View Full-Text
Keywords: additive manufacturing; thermal stress and strain; metal foils; tensile test; corrosion test; microstructural analysis; transient thermal analysis additive manufacturing; thermal stress and strain; metal foils; tensile test; corrosion test; microstructural analysis; transient thermal analysis
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Butt, J.; Ghorabian, M.; Ahmed, A.; Shirvani, H. Finite Element Modelling and Validation of Thermomechanical Behaviour for Layered Aluminium Parts Made by Composite Metal Foil Manufacturing. J. Compos. Sci. 2018, 2, 68.

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