REFERENCES
- S. WU: `Superplastic deformation theory of metals': 1997, Beijing, National Defense Industry Press (in Chinese).
- Y. SONG and J. ZHAO: Mater. Sci Eng. A, 1986, 84, 111–125.
- J. H. ARGYRIS and J. ST DOLTSINIS: Comput. Maths. Appl. Mech. Eng., 1984, 46, 83.
- J. BONET, R. D. WOOD, and A. H. S. WARGADIPURA: Int. J. Numer. Methods Eng., 1990,30, 1719–1737.
- X. D. DING, H. M. ZBIB, C. H. HAMILTON, and A. E. BAYOUML: J. Mater. Eng. Perform., 1995, 4, 474–485.
- S. C. RAMA, N. CHANDRA, and R. E. GOFORTH: in 'Advances in superplasticity and superplastic forming', (ed. N. Chandra et al.), 133–154; 1993, Warrendale, PA, TMS.
- Y. H. KIM, S. S. HONG, J. S. LEE, and R. H. WAGONER: J. Mater. Process. Technol, 1996, 62, 90–99.
- Y. X. LI, P. tiu, and J. LIAN: Acta. Mech. Solida. Sin., 1993, 6, 131–144.
- R. HILL: 'Mathematical theory of plasticity': 1950, Oxford, Oxford University Press.
- H. YAMAMOTO: Int. J. Fracture, 1978, 14, 347–365.
- Z. DU, M. LI, M. LIU, and s. wu: Appl. Math. Mech., 1996, 17, 133–138.
- Z. DU and S. Wu: J. Mater. Process. Technol, 1995, 52, 270–279.