AN EFFICIENT NUMERICAL INTEGRATION ALGORITHM FOR THE SINGLE MODE COMPRESSIBLE LEONOV MODEL - COMPLAS XI

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

Mirkhalaf, M (Author) Other; Pires, F (Author) FEUP; Simoes, R (Author) Other

Conference proceedings International

Title: COMPUTATIONAL PLASTICITY XI: FUNDAMENTALS AND APPLICATIONS

Pages: 841-851

11th International Conference on Computational Plasticity (COMPLAS) - Fundamentals and Applications

Barcelona, SPAIN, SEP 07-09, 2011

Indexing

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Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Authenticus ID: P-002-Y8T

Abstract (EN): In this contribution, an algorithm for numerical integration of the Leonov elasto-viscoplastic model is proposed. The operator split methodology and the Newton-Raphson method are used to derive the state update algorithm and obtain the numerical solution of the discretized evolution equations. Particular effort is devoted to the reduction of the number of required residual equations in order to have a more efficient numerical implementation. The consistent tangent module is expressed in a closed form as a result of the exact linearization of the discretized evolution equations. The performance of the algorithm is validated through comparison with existing experimental data.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11