Development of non-iterative self correcting solution (NONSS) method for the viscoplastic analysis with the Chaboche model
✍ Scribed by P. Chellapandi; R. S. Alwar
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 356 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0029-5981
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✦ Synopsis
In a finite element program for the viscoplastic analysis with Chaboche model, the non-iterative and self-correcting solution (NONSS) method, proposed by Tanaka and Miller has been implemented. Towards this, the necessary Jacobian coefficients have been derived analytically for the sophisticated 23-parameter Chaboche viscoplastic model and finally the tangent modulus matrix D* and the residual viscoplastic stress vector * have been obtained in order to determine the global tangent stiffness matrix as well as pseudo-load vector. The computational efficiency of this method is demonstrated by solving a variety of bench mark problems over a wide range of rate sensitivity domain under complex monotonic and cyclic loading histories relevant to fast breeder reactor applications. An improved Self-Adaptive Eulers Forward (SAEF) method is taken as the reference for comparison.