Model Calibration and Validation for Material Damping Using Finite Element Analyses

  • Ryan A. Menefee
  • Jennifer M. Rinker
  • Peter H. Shin
  • Philip Schembri
  • Antranik Siranosian
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

Finite element analyses are a powerful engineering tool that can yield insight into the behavior of engineering systems that experimentation may not accurately yield. Including damping in these analyses can yield more accurate models, but damping is often neglected due to difficulties in determining which damping model to use, and the appropriate parameters for the models. This research explored the relationship between physical damping and its implementation in Abaqus, with a focus on investigating the different effects of different damping models. The three damping models investigated were mass-proportional, stiffness-proportional, and viscoelastic. The parameters of the models were calibrated for a particular material with experimental data from a simple “calibration structure.” Preliminary testing on the validity of the models was completed by comparing experimental results of a more complex “validation structure,” made of the same material, with simulation results generated using the calibrated damping parameters.

Keywords

Material damping Rayleigh damping Viscoelasticity Finite element analysis Calibration Validation 

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Copyright information

© The Society for Experimental Mechanics, Inc. 2012 2012

Authors and Affiliations

  • Ryan A. Menefee
    • 1
  • Jennifer M. Rinker
    • 2
  • Peter H. Shin
    • 3
  • Philip Schembri
    • 4
  • Antranik Siranosian
    • 4
  1. 1.Department of Mechanical and Aerospace EngineeringUniversity of CaliforniaLos AngelesUSA
  2. 2.Department of Civil and Environmental EngineeringDuke UniversityDurhamUSA
  3. 3.Department of Mechanical and Aerospace EngineeringNorth Carolina State UniversityRaleighUSA
  4. 4.Advanced Engineering Analysis GroupLos Alamos National LaboratoryLos AlamosUSA

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