Contribution to a conference proceedings

FZJ-2021-00618

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Role Of The Cost Function For Material Parameter Determination

Lauer, P. ; Hehnen, T.FZJ* ; Trettin, C. ; Brännström, F. ; Arnold, L. (Corresponding author)FZJ*

2020

Please use a persistent id in citations: http://hdl.handle.net/2128/26999

Abstract: Cost functions in optimisation processes are used as a measure to compute the distance between two data sets. Commonly, the root mean square error is used as a cost function for the estimation of material parameters based on bench-scale experiments. Due to the noise and variance in the target experimental data, this may not be the best choice. This contribution presents three other approaches, which are implemented into the PROPTI framework. Their application is demonstrated on experiments with a PMMA sample in a controlled atmosphere pyrolysis apparatus (CAPA II). Although, in the specific case investigated here, the impact of the various cost function classes is small, a benefit is expected for other samples with varying complexity.

---

Contributing Institute(s):

1. Zivile Sicherheitsforschung (IAS-7)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)
2. PhD no Grant - Doktorand ohne besondere Förderung (PHD-NO-GRANT-20170405) (PHD-NO-GRANT-20170405)

Appears in the scientific report 2020

---

Database coverage:

---