ME 612
Metal Forming and Theory of Plasticity
Assoc.Prof.Dr. Ahmet Zafer Şenalp
e-mail: azsenalp@gmail.com
Mechanical Engineering Department
Gebze Technical University
ME 612
Metal Forming and Theory of Plasticity
Course Contents
1.Introduction
2. Definitions
3. Work Hardening Models
4. Factors Effecting Work Hardening Characteristics
5. Stress
6. Strain
7. Yield Criteria of Metals
8. Stress-Strain Relations
9. Methods of Determining Work Hardening Characteristics
10. Plastic Instability
11. Plastic Anisotropy
12. The Solution Methods Used In Metal Forming Area
13. The Ideal Work Method
14. Slab Analysis of Bulk Forming Processes
15. Open Die Forging Processes
16. Cold Rolling of Strip
17. Sheet Metal Bending
Dr. Ahmet Zafer Şenalp
ME 612
Mechanical Engineering Department,
GTU
2
ME 612
Metal Forming and Theory of Plasticity
References
[1]
[2]
[3]
[4]
Johnson, W. and Mellor, P.B., Engineering Plasticity, New York Van Nostrand Reinhold.
Hosford, W.F. and Caddell R.M., Metal Forming Mechanics and Metallurgy , Prentice Hall International Editions.
Johnson, W., Upper Bound Loads for Extrusion Through Circular Shaped Dies , Appl. Sci. Res. Series A, Vol. 7, p. 437, 1958.
Liu, J.Y., Upper Bound Solutions of Some Axisymmetric Cold Forging Problems, Transactions of the ASME, Journal of
Engineering for Industry, pp. 1134-1144, November, 1971.
[5] Nagpal, V., Lahoti, G.D. and Altan, T., A Numerical Method for Simultaneous Prediction of Metal Flow and Temperatures in
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1978.
[6] Avitzur, B., An Upper Bound Approach to Cold Strip Rolling', Journal Engineering Industry, ASME, Paper No: 63 Prod. 8.
[7] Hosford, W.F. and Caddell, R.M., Metal Forming Mechanics and Metallurgy, Prentice Hall International Editions, pp. 115- 138,
1983.
[8] Akgerman, N. and Altan, T., Modular Analysis of Geometry and Stresses in Closed Die Forging: Application to a Structural Part,
Transactions of the ASME, Journal of Engineering for Industry, November, PP.1025 1034, 1972.
[9] Hosford, W.F. and Caddell, R.M., Metal Forming Mechanics and Metallurgy, Prentice Hall International Editions, pp. 168- 201,
1983.
[10] Johnson, W., Sowerby, R. and Haddow, J.B., Plane Strain 132ip Line Fields: Theory and Bibliography, New York, American
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[11] Boor, F., Modelling of deep drawing of complex shaped components using slip line methods, Proceedings of 30th International
MATADOR Conference, UMIST, Manchester, McMillian Ltd., pp. 217-225. 1993.
Dr. Ahmet Zafer Şenalp
ME 612
Mechanical Engineering Department,
GTU
3
[12] Boor, F. and Kardos, K., Stress line methods for industry and education , 7th International Machine Design and Production
Conference, September, METU, Ankara, Turkey pp. 313-321, 1996.
[13] Ghali, A. and Neville, A.M., Structural Analysis, A Unified Classical and Matrix Approach, Chapman and Hall, pp. 435- 471,
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[14] Takezona, S. and Tao, K., Elasto/Visco-Plastic Dynamic Response of General Thin Shells to Blast Loads, Bulletin of the JSME,
Vol. 25, No. 203, May, pp. 728-735, 1982.
[15] Şenalp, A.Z., Computer Aided Wrinkling Analysis Of Nonsymmetric Parts In Sheet Metal Forming, Ph. D. Thesis, Middle East
Technical University, 1998.
[16] Kılkış, B. And Kaftanoğlu, B., On the Finite Diffence Formulation of Non-Linear Plastic Deformations, Proceedings of Int. Conf.
On Numerical Methods for Non-Linear Problems, pp. 63-73, Pineridge Press, 1980.
[17] Perzyna, P., Fundamental Problems in Viscoplasticity', Advances in Applied Mechanics, Vol 9, pp 243-377, 1966.
[18] Owen, D.R.J. and Hinton, E., Finite Elements in Pllasticity Theory and Practice, Pineridge Press, Swansea, 1980.
[19] Waszezyszyn, Z., Computational methods and Plasticity', Report CR 583, Tech. Univ. Delft, faculty of Aerospace, 1989.
[20] Zienkiewics, O.C., Cormeau, I.C., Viscoplasticity, plasticity, and creep in elastic solids A Unified Numerical Solution Approach,
Int. J. Num Meth. Engng, Vol 8, pp. 821-845, 1974.
[21] Tayal, A.K. and Natarajan, R., Extrusion of Rate Sensitive Materials Using A Viscoplastic Constitutive Equation and the Finite
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[22] Oh, S.I., Park, J.J., Kobayashi, S. and Altan, T., Application of FEM Modeling to Simulate Metal Flow in Forging a titanium Alloy
Engine Dis", Transactions of the ASME, Journal of Engineering for Industry, November, Vol. 105, pp. 251-258, 1983.
[23] Chandra, A. and Mukherjee, S., A finite element analysis of metal-forming problems with an elastic viscoplastic material
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[24] Darendeliler, H., Computer Aided Deformation Analysis of Deep Drawing Process, Ph. D. Thesis, Middle East Technical
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[26] Prof. N. Zabaras, Materials Processing, Lecture Notes.
[27] Prof. Dr. Levon Çapan, Metallerde Plastik Şekil Verme.
Dr. Ahmet Zafer Şenalp
ME 612
Mechanical Engineering Department,
GTU
4