The effect of initial estimated points on objective functions for optimization

Mahdi Soltani, Annalisa Pola, Qiang Xu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Research progress on the optimization in order to obtain the value of material constants for a set of creep damage constitutive equations was presented, including (1) a brief review of continuum creep damage modeling and the designs of objective functions; (2) case study reporting the influence of the initial start points on the final results; and (3) discussion and conclusion. As far as the authors know, there is no any published paper addressing specifically on the influence of starting values on the final results. In order to overcome the difficulty or inaccuracy it is suggested in this paper to (1) check the accuracy of a particular set of experimental data, (2) review the method to depict the relationship between the stress level and minimum strain rate, (3) to design a better objective functions so that the convergence is ensured to all the stress levels. Proceedings 28th European Conference on Modelling and Simulation

LanguageEnglish
Title of host publicationProceedings - 28th European Conference on Modelling and Simulation, ECMS 2014
PublisherEuropean Council for Modelling and Simulation
Pages304-308
Number of pages5
ISBN (Print)9780956494481
Publication statusPublished - 2014
Event28th European Conference on Modelling and Simulation - Brescia, Italy
Duration: 27 May 201430 May 2014
Conference number: 28
http://www.scs-europe.net/conf/ecms2014/ (Link to Conference Website)

Conference

Conference28th European Conference on Modelling and Simulation
Abbreviated titleECMS 2014
CountryItaly
CityBrescia
Period27/05/1430/05/14
Internet address

Fingerprint

Creep
Damage
Objective function
Optimization
Strain Rate
Constitutive Equation
Constitutive equations
Modeling and Simulation
Strain rate
Continuum
Experimental Data
Modeling
Design
Review
Influence
Relationships

Cite this

Soltani, M., Pola, A., & Xu, Q. (2014). The effect of initial estimated points on objective functions for optimization. In Proceedings - 28th European Conference on Modelling and Simulation, ECMS 2014 (pp. 304-308). European Council for Modelling and Simulation.
Soltani, Mahdi ; Pola, Annalisa ; Xu, Qiang. / The effect of initial estimated points on objective functions for optimization. Proceedings - 28th European Conference on Modelling and Simulation, ECMS 2014. European Council for Modelling and Simulation, 2014. pp. 304-308
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Soltani, M, Pola, A & Xu, Q 2014, The effect of initial estimated points on objective functions for optimization. in Proceedings - 28th European Conference on Modelling and Simulation, ECMS 2014. European Council for Modelling and Simulation, pp. 304-308, 28th European Conference on Modelling and Simulation, Brescia, Italy, 27/05/14.

The effect of initial estimated points on objective functions for optimization. / Soltani, Mahdi; Pola, Annalisa; Xu, Qiang.

Proceedings - 28th European Conference on Modelling and Simulation, ECMS 2014. European Council for Modelling and Simulation, 2014. p. 304-308.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Soltani M, Pola A, Xu Q. The effect of initial estimated points on objective functions for optimization. In Proceedings - 28th European Conference on Modelling and Simulation, ECMS 2014. European Council for Modelling and Simulation. 2014. p. 304-308