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TECHNICAL PAPERS

Evolutionary Optimization and Use of Neural Network for Optimum Stamping Process Design for Minimum Springback

[+] Author and Article Information
K. M. Liew, Tapabrata Ray, H. Tan, M. J. Tan

Centre for Advanced Numerical Engineering Simulations, School of Mechanical and Production Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798

J. Comput. Inf. Sci. Eng 2(1), 38-44 (Jun 05, 2002) (7 pages) doi:10.1115/1.1482399 History: Revised April 01, 2001; Received July 01, 2001; Online June 05, 2002
Copyright © 2002 by ASME
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References

Stevenson,  R., 1993, “Springback in Simple Axisymmetric Stampings,” Metall. Trans., 24, pp. 925–934.
Zhang,  L. C., Lu,  G., and Leong,  S. C., 1997, “V-shaped Sheet Forming by Deformable Punches,” J. Mater. Process. Technol., 63, pp. 134–139.
Richmond, O., and Davenpeck, M. L., 1962, “A Die Profile for Maximum Efficiency in Strip Drawing,” 4th US Cong. Appl. Mech., ASME, p. 1053.
Roy,  S., Ghosh,  S., and Shivpuri,  R., 1996, “Optimal Design of Process Variables in Multi-pass Wire Drawing by Genetic Algorithm,” J. Manuf. Sci. Eng., 118, pp. 244–251.
Srinivas,  N., and Deb,  K., 1994, “Multiobjective Optimization Using Nondominated Sorting in Genetic Algorithms,” Evol. Comput., 2(3), pp. 221–248.
Ray, T., Tai, K., and Seow, K. C., 2000, “An Evolutionary Algorithm for Constrained Optimization,” Proceedings of the Genetic and Evolutionary Computation Conference, GECCO 2000, Las Vegas, Morgan Kaufmann Publishers, pp. 771–777.
Ray,  T., Tai,  K., and Seow,  K. C., 2001, “Multiobjective Design Optimization by an Evolutionary Algorithm,” Eng. Optimiz., 33(4), pp. 399–424.
Deb,  K., and Kumar,  A., 1995, “Real Coded Genetic Algorithms with Simulated Binary Crossover: Studies on Multimodal and Multiobjective Problems,” Complex Syst., 9(6), pp. 431–454.
Hornik,  K., Stinchhcombe,  M., and White,  H., 1989, “Multilayer Feedforward Neural Networks are Universal Approximators,” Neural Networks, 2, pp. 359–366.
Ray,  T., Gokarn,  R. P., and Sha,  O. P., 1996, “Neural Network Applications in Naval Architecture and Marine Engineering,” Artif. Intell. Eng., 1, pp. 213–226.
Barlat,  F., and Lian,  J., 1989, “Plastic Behavior and Stretchability of Sheet Metals. Part I: A Yield Function for Orthotropic Sheets Under Plane Stress Conditions,” Int. J. Plast., 5, p. 51.

Figures

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Approximation error for example 1 using 8×6×1 architecture
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Approximation error for example 1 using 8×7×1 architecture
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Model of sheet metal forming operation
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Distribution of springback in the initial population
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Distribution of springback in the final population
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Prediction on training data
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Prediciton on test data
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Prediction on training data
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Prediction on test data
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Distribution of springback in the initial population (approximated)
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Distribution of springback in the final population (approximated)

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