Laboratory for Dynamics of Machines and Structures 
Evaluation of the Young's Modulus of Rubber-Like Materials Bonded to Rigid Surfaces with Respect to Poisson's Ratio
 D. Koblar, J. Škofic and M. Boltežar
Journal of Mechanical Engineering, Volume 60, Issue 7-8, 2014, Pages 506-511

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Abstract
Axially loaded rubber blocks of circular cross-section whose ends are bonded to rigid plates are studied. Frequency-response functions were obtained with finite-element model on rubber specimens, with respect to Poisson's ratio and shape factor. Than apparent Young's modulus was estimated and various equations that describe relationship between the apparent Young's modulus and actual Young's modulus of rubber material were used to estimate Young's modulus of rubber material. Further estimated Young's modulus of rubber material was compared to one defined in finite-element model.It is shown that there is a significant difference in estimated Young's modulus when different equations were used, especially when Poisson's ratio of rubber material is smaller than theoretical 0.5.
Authors

R&D

David Koblar, PhD

  Domel d.d., Železniki
  david.koblar@domel.si
  +386 1 4771 230

R&D

Jan Škofic, PhD

  Iskra Mehanizmi.
  jan.skofic@iskra-mehanizmi.si
  

Professor

Miha Boltežar, PhD

  Ladisk, Faculty of Mechanical Engineering, University of Ljubljana
  miha.boltezar@fs.uni-lj.si
  +386 1 4771 608
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