Multiaxial Mechanical Strength of AA-2024-T3 Aluminium Alloy Sheets Joined by Friction Stir Welding Processes

Abstract:

The aim is to analyze a junction produced by a Friction Stir Welding (FSW) joining process under multiaxial loading, employing a modified Arcan test that allows an angle variation of the loading in order to evaluate the failure of the FSW weldment as compared to the base material. A short review of the earlier studies and relevant theories about the FSW processes and fracture modes I and II under multiaxial loading are presented and were experimentally evaluated for an AA2024-T3 aluminum alloy sheets (t = 1.6 mm) processed by FSW. The results obtained can serve as a basis to compare the junctions made using FSW and conventional joint methods such as rivets (very common practice in the aeronautical industry).

• Periodical: Advanced Materials Research (Volumes 83-86)
• Pages: 1243-1250
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.83-86.1243
• Online since: December 2009
• Authors: R.L.L.P. Cerveira, G. F. Batalha
• Keywords: AA2024-T3, Arcan, Friction Stir Welding (FSW), Mechanical Behavior

References

[1] L.E. Pereira: Propagação de Trinca por Fadiga em uma Liga de Alumínio 2024-T3 soldada por fricção-mistura (FSW): O Papel das Tensões Residuais, Doctor Engineer Thesis, University of Sao Paulo, EESC - University of Sao Paulo, São Carlos, Brazil, (2005).

DOI: 10.11606/t.85.2019.tde-30072019-144029

[2] H. Horn: (eue Entwicklungen bei Reibschweissverfahren, Institut für Werkstoffkunde und Schweisstechnik - FH Hamburg - Jahrbuch Schweisstechnik (2002), Germany.

[3] A. Rosato Jr.: Estrutura Integral por Soldagem por Atrito "Friction Stir Welding - FSW" - Requisitos Basicos Para o Projeto Estrutural,; Master Thesis; ITA, S. José dos Campos, Brazil. (2003).

[4] S. Blanchard, B. Langrand, J. Fabis and A. Denquin: Arcan test and strain field measurement to study material behaviour in 6056T78 FSW specimens, in: Proc. 6th International FSW Symposium, Saint-Sauveur., Canada. (2006).

[5] J.Y. Liu, R.J. Ross and D.R., Rammer: Improved Arcan Shear Test For Wood,. In: Proc. of the International Wood engineering conference. Gopu, Vijaya K.A., ed.; 1996, October 28-31; Louisiana State University, USA, Vol. 2, (1996), pp.85-90.

[6] M. Oliveira, J. Xavier, and J. Morais: Utilização do Ensaio de Arcan para a Identificação do Comportamento ao Corte da Madeira de Pinho,. In: 1º Congresso Ibérico: a madeira na construção, Universidade de Minho, Guimarães, (2004).

DOI: 10.11606/d.18.2005.tde-24012008-111028

[7] S.C. Yen, J.N. Cradock and K.T. Teh: Evaluation of a modified Arcan fixture for the inplane shear test of materials, Experimental Techniques, (1988), pp.22-25.

DOI: 10.1111/j.1747-1567.1988.tb02169.x

[8] M. Arcan, Z. Hashim, and A. Voloshin: A method to produce uniform plane-stress states with the applications to fiber-reinforced materials,. Experimental Mechanics. Vol. 18, n. 4, (1978), pp.141-6.

DOI: 10.1007/bf02324146

[9] M. A. Sutton, A. P. Reynolds, D. Q. Wang and C. R. Hubbard: A Study of Residual Stresses and Microstructure in 2024-T3 Aluminum Friction Stir Butt Welds,. Journal of Engineering Materials and Technology, Vol. 124, (2002), pp.124-221.

DOI: 10.1115/1.1429639

[10] M. A. Sutton, M. L. Boone, F. Ma and J. D. Helm: A combined modeling - experimental study of the crack opening displacement fracture criterion for characterization of stable crack growth under mixed mode I/II loading in thin sheet materials,. Engineering Fracture Mechanics, Vol. 66, (2000).

DOI: 10.1016/s0013-7944(00)00011-4

[11] H. A. Kavamura and G. F. Batalha: Mechanical strength evaluation for (d-YAG laser and electric resistance spot weld (ERSW) joint under multiaxial loading,. Journal of Materials Processing Technology, 201, 1-3, (2008), pp.507-14.

DOI: 10.1016/j.jmatprotec.2007.11.172

[12] D.J. dos Santos: Estudo experimental da resistência mecânica de junções adesivas, Master Thesis, EPUSP, S. Paulo, Brazil. (2007).

DOI: 10.11606/d.3.2007.tde-10012008-104134