The application of the finite elements method in the step wise transient method

The evaluation of the Step-wise transient (SWT) method is verified by experiment simulation using Finite elements method (FEM) and true values of the specimen thermophysical parameters, which resulted in an input response. This is evaluated by fitting the analytical temperature function providing th...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 2911; no. 1; pp. 12001 - 12006
Main Author Malinarič, S
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.12.2024
Subjects
Finite element method
Mathematical analysis
Parameter modification
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ISSN1742-6588
1742-6596
1742-6596
DOI10.1088/1742-6596/2911/1/012001

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Summary:The evaluation of the Step-wise transient (SWT) method is verified by experiment simulation using Finite elements method (FEM) and true values of the specimen thermophysical parameters, which resulted in an input response. This is evaluated by fitting the analytical temperature function providing the initial guesses of the specimen parameter values. The accuracy of the results is increased by modifying the original analytical temperature function with another FEM calculation using these initial guesses. The computed temperature response in an numerical form is transformed into an analytical one, which can be used in fitting the input response. The obtained results are compared with true values and initial guesses. This procedure is conducted with specimens made from silicate glass and polymethylmethacrylate (PMMA).
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ISSN:1742-6588
1742-6596
1742-6596
DOI:10.1088/1742-6596/2911/1/012001