Combined creep and plastic analysis with numerical methods

Research output: Contribution to conferencePaperResearch

Abstract

The combination of plastic and creep analysis formulation are developed in this paper. The boundary element method and the finite element method are applied in plates in order to do the numerical analysis. This new approach is developed to combine the constitutive equation for time hardening creep and the constitutive equation for plasticity, which is based on the von Mises criterion and the Prandtl-Reuss flow. The implementation of creep strain in the formulation is achieved through domain integrals. The creep phenomenon takes place in the domain which is discretized into quadratic quadrilateral continuous and discontinuous cells. The creep analysis is applied to metals with a power law creep for the secondary creep stage. Results obtained for three models studied are compared to those published in the literature. The obtained results are in good agreement and evinced that the Boundary Element Method could be a suitable tool to deal with combined nonlinear problems.
Original languageAmerican English
Pages801-810
Number of pages719
StatePublished - 1 Dec 2013
Externally publishedYes
EventComputational Plasticity XII: Fundamentals and Applications - Proceedings of the 12th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2013 -
Duration: 1 Dec 2013 → …

Conference

ConferenceComputational Plasticity XII: Fundamentals and Applications - Proceedings of the 12th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2013
Period1/12/13 → …

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creep
numerical method
Numerical methods
Creep
plastic
Plastics
boundary element method
constitutive equation
Boundary element method
Constitutive equations
analysis
hardening
finite element method
Plasticity
plasticity
Hardening
Numerical analysis
power law
Finite element method
metal

Cite this

(2013). Combined creep and plastic analysis with numerical methods. 801-810. Paper presented at Computational Plasticity XII: Fundamentals and Applications - Proceedings of the 12th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2013, .
/ Combined creep and plastic analysis with numerical methods. Paper presented at Computational Plasticity XII: Fundamentals and Applications - Proceedings of the 12th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2013, .719 p.
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2013, 'Combined creep and plastic analysis with numerical methods' Paper presented at Computational Plasticity XII: Fundamentals and Applications - Proceedings of the 12th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2013, 1/12/13, pp. 801-810.

Combined creep and plastic analysis with numerical methods.

2013. 801-810 Paper presented at Computational Plasticity XII: Fundamentals and Applications - Proceedings of the 12th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2013, .

Research output: Contribution to conferencePaperResearch

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Combined creep and plastic analysis with numerical methods. 2013. Paper presented at Computational Plasticity XII: Fundamentals and Applications - Proceedings of the 12th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2013, .