The Parametric Variational Principle for Perzyna Model in Viscoplasticity

Zeng Pan; Zhong Wan-xie

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Zeng Pan, Zhong Wan-xie. The Parametric Variational Principle for Perzyna Model in Viscoplasticity[J]. Applied Mathematics and Mechanics, 1991, 12(5): 409-414.

Citation:

Zeng Pan, Zhong Wan-xie. The Parametric Variational Principle for Perzyna Model in Viscoplasticity[J]. Applied Mathematics and Mechanics, 1991, 12(5): 409-414.

Citation:

Zeng Pan, Zhong Wan-xie. The Parametric Variational Principle for Perzyna Model in Viscoplasticity[J]. Applied Mathematics and Mechanics, 1991, 12(5): 409-414.

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The Parametric Variational Principle for Perzyna Model in Viscoplasticity

Research Institute of Engineering Mechanics, Dalian University of Technology, Dalian

Received Date: 1989-11-13
Publish Date: 1991-05-15

Abstract

Abstract

This paper presents the parametric variational principle for Perzyna model which is one of the main constitutive relations of viscoplasticity.The principle,by which the potential energy function is minimized under a constrained condition transformed by the constitutive relations of viscoplasticity, is free from the bound of Drucker's postulate of plastic flow and consequently suitable for solving the nonassociated plastic flow problems. Furthermore, the paper has proven the presented principle and discussed the creep problem.
- viscoplasticity,
- parametric variational principle,
- creep

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References(8)

References

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