Uncertainty quantification in analytical and finite element beam models using experimental data

P. Langer, K. Sepahvand, S. Marburg

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

This study describes the quality of model formation for free vibration of beam structures under uncertainty. The key issues are that all analytical and numerical finite element (FE) models contain uncertainties due to the tolerances in topological parameters, assumptions made, material parameters, boundary conditions. Two well-known Euler-Bernoulli and Timoshenko beam theories have been compared. At FE level, various elements available for modeling of beam structures in ABAQUS are compared and evaluated. Experimental modal analysis have been performed on beam specimens to validate the results from analytical and FE models due to parameter uncertainties. It is shown which element types are required to allow minimal deviation from the experimental results considering uncertainties.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Structural Dynamics, EURODYN 2014
EditorsA. Cunha, P. Ribeiro, E. Caetano, G. Muller
PublisherEuropean Association for Structural Dynamics
Pages2753-2758
Number of pages6
ISBN (Electronic)9789727521654
StatePublished - 2014
Externally publishedYes
Event9th International Conference on Structural Dynamics, EURODYN 2014 - Porto, Portugal
Duration: 30 Jun 20142 Jul 2014

Publication series

NameProceedings of the International Conference on Structural Dynamic , EURODYN
Volume2014-January
ISSN (Print)2311-9020

Conference

Conference9th International Conference on Structural Dynamics, EURODYN 2014
Country/TerritoryPortugal
CityPorto
Period30/06/142/07/14

Keywords

  • Beam structures
  • Experimental modal analysis
  • FE modeling
  • Uncertainty quantification

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