Constitutive modelling of primary creep for age forming an aluminium alloy

Journal of Materials Processing Technology

Volumn 153-154, Issue 1-3, 2004, Pages 122-127

  Ho, K C ^a   Lin, J ^a   Dean, T A ^a  

^a UNIVERSITY OF BIRMINGHAM   (United Kingdom)

Author keywords

Ageing; Constitutive equations; Creep; Stress relaxation

Indexed keywords

AGING OF MATERIALS; ALGORITHMS; ALUMINUM ALLOYS; FORMING; PLASTIC DEFORMATION; SHOT PEENING; STRESS RELAXATION; STRUCTURAL PANELS;

AGEING KINETICS; ARTIFICIAL AGEING; CONSITUTIVE MODELING; FORMING PROCESS;

CREEP;

EID: 9644294290     PISSN: 09240136     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jmatprotec.2004.04.304     Document Type: Article

References (18)

1. MC. Holman, Autoclave age forming large aluminium aircraft panels, J. Mech. Work. Technol. 20 (1989) 477-488.
2. A.andA. Prior, Finite element analysis of shot peening, J. Mater. Process. Technol. 80-81 (1998) 304-308.
3. A.W. Zhu, E.A. Starke, Materials aspects of age-forming of Al-xCu alloys, J. Mater. Process. Technol. 117 (2001) 354-358.
4. K.C. Ho, J. Lin, T. A. Dean, Modelling of springback in creep forming thick aluminum sheets, Int. J. Plast. 20 (2004) 733-751.
5. P.D. Pitcher, C.M. Styles, Creep age forming of 2024A, 8090 and 7449 alloys, Mater. Sci. Forum 331-337 (2000) 455-460.
6. M.J. Sallah, J. Peddieson, S. Foroudastan, A mathematical-model of autoclave age forming, J. Mater. Process. Technol. 28 (1991) 211-219.
7. R. Dif, et al., Improving the forming characteristics of aluminium sheets for aerospace applications, Mater. Sci. Forum 331-337 (2000) 483-488.
8. W.J. Poole, H.R. Shercliff, T. Castillo, Process model for two step age hardening of 7475 aluminium alloy, Mater. Sci. Technol. 13 (1997) 891-904.
9. W.J. Poole, et al., A model for predicting the effect of deformation after solution treatment on the subsequent artificial aging behavior of AA7030 and AA7108 alloys, Metall. Mater. Trans. A 31 (2000) 2327-2338.
10. R. Ferragut, A. Somoza, A. Tolley, Microstructural evolution of 7012 alloy during the early stages of artificial ageing, Acta Mater. 47 (1999) 4355-4364.
11. K.T. Kashyap, et al., A model for two-step ageing, Bull. Mater. Sci. 23 (2000) 405-411.
12. D.S. Chan, et al., A survey if unified constitutive theories, in: Proceedings of the 2nd Symposium on NASA-LEWIS Non-Linear Constitutive Related High Temperature Applications, Cleveland, OH, NASA Conf. Publ. 2369 (1985).
13. J.L. Chaboche, Constitutive equations for cyclic plasticity and cyclic viscoplasticity, Int. J. Plast. 5 (1989) 31-43.
14. Y. Estrin, Dislocation theory based constitutive modelling: foundations and applications, J. Mater. Process. Technol. 80-81 (1998) 33-39.
15. J. Lin, J. Yang, GA-based multiple objective optimization for determining viscoplastic constitutive equations for superplastic alloys, Int. J. Plast. 15 (1999) 1181-1196.
16. B. Li, J. Lin, X. Yao, A novel evolutionary algorithm for determining unified creep damage constitutive equations, Int. Mech. Sci. 44 (2002) 987-1002.
17. J. Lin, B.H. Cheong, X. Yao, Universal multi-objective function for optimising superplastic-damage constitutive equations, J. Mater. Process. Technol. 125 (2002) 199-205.
18. A. Deschamps, Modeling of microstructure evolution and mechanical properties in age-hardening aluminium alloys, in: Proceedings of the EUROMAT 99, vol. 3, Munchen, Germany, 1999. pp. 121-132.