|
|
Digital Library of the
European Council for Modelling and Simulation |
|
Title: |
The Effect Of Initial Estimated Points On Objective Functions For
Optimization |
|
Authors: |
Mahdi Soltani, Annalisa Pola,
Qiang Xu |
|
Published in:
|
(2014).ECMS 2014 Proceedings edited
by: Flaminio Squazzoni,
Fabio Baronio, Claudia Archetti,
Marco Castellani European Council for
Modeling and Simulation. doi:10.7148/2014 ISBN:
978-0-9564944-8-1 28th
European Conference on Modelling and Simulation, Brescia,
Italy, May 27th – 30th,
2014 |
|
Citation
format: |
Mahdi Soltani, Annalisa Pola, Qiang Xu (2014). The Effect Of Initial Estimated Points On
Objective Functions For Optimization, ECMS 2014 Proceedings edited by: Flaminio Squazzoni, Fabio Baronio, Claudia Archetti,
Marco Castellani European Council for Modeling and Simulation. doi:10.7148/2014-0304 |
|
DOI: |
http://dx.doi.org/10.7148/2014-0304 |
|
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. |
|
Full
text: |
|
