Abstract
In this paper, the proposed is a quasi-flow constitutive model with strain-rate sensitivity for elastic plastic large deformation. The model is based on the Quasi-flow Corner theory, and is suitable for the sheet metal forming process simulation with a variable punch machine velocity. Uniaxial tensile tests and deep-drawing tests of a circular blank with square punch are carried out and numerically simulated. The consistency between the experimental and the numerically simulated results shows the validity of the present new constitutive model.
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The project supported by the Scientific Foundation of National Outstanding Youth of China (10125208), the National Natural Science Foundation of China (19832020), and the National Education Committee of China
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Ping, H., Guozhe, S. & Guang, Y. A quasi-flow constitutive model with strain-rate dependence. Acta Mech Sinica 20, 283–291 (2004). https://doi.org/10.1007/BF02486720
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DOI: https://doi.org/10.1007/BF02486720