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Extending the overlay method in order to capture the variation due to amplitude in the frequency dependence of the dynamic stiffness and loss during cyclic loading of elastomers

Kareaga, Z.; Guraya, T.; Arriaga, A. and Austrell, P. E. LU (2015) 9th European Conference on Constitutive Models for Rubbers, ECCMR 2015 In Constitutive Models for Rubber IX - Proceedings of the 9th European Conference on Constitutive Models for Rubbers, ECCMR p.205-218
Abstract

The current work focus on the overlay method proposed by Austrell concerning frequency dependence of the dynamic modulus and loss angle that is known to increase more with frequency for small amplitudes than for large amplitudes. The original version of the overlay method yields no difference in frequency dependence with respect to different load amplitudes. However, if the elements in the viscoelastic layer of the finite element model are given different stiffness and loss properties depending on the loading amplitude level, frequency dependence is shown to be more accurate compared to experiments. The commercial finite element program Ansys is used to model an industrial metal rubber part using two layers of elements. One layer is a... (More)

The current work focus on the overlay method proposed by Austrell concerning frequency dependence of the dynamic modulus and loss angle that is known to increase more with frequency for small amplitudes than for large amplitudes. The original version of the overlay method yields no difference in frequency dependence with respect to different load amplitudes. However, if the elements in the viscoelastic layer of the finite element model are given different stiffness and loss properties depending on the loading amplitude level, frequency dependence is shown to be more accurate compared to experiments. The commercial finite element program Ansys is used to model an industrial metal rubber part using two layers of elements. One layer is a hyper viscoelastic layer and the other layer uses an elasto-plastic model with a multi-linear kinematic hardening rule. The model, being intended for stationary cyclic loading, shows good agreement with measurements on the harmonically loaded industrial rubber part.

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publication status
published
subject
in
Constitutive Models for Rubber IX - Proceedings of the 9th European Conference on Constitutive Models for Rubbers, ECCMR
pages
14 pages
publisher
CRC Press/Balkema
conference name
9th European Conference on Constitutive Models for Rubbers, ECCMR 2015
external identifiers
  • Scopus:84959479007
ISBN
9781138028739
language
English
LU publication?
yes
id
8062dfed-577e-4eb0-b8a4-f06291e69012
date added to LUP
2016-09-26 07:44:24
date last changed
2017-01-01 08:35:10
@inproceedings{8062dfed-577e-4eb0-b8a4-f06291e69012,
  abstract     = {<p>The current work focus on the overlay method proposed by Austrell concerning frequency dependence of the dynamic modulus and loss angle that is known to increase more with frequency for small amplitudes than for large amplitudes. The original version of the overlay method yields no difference in frequency dependence with respect to different load amplitudes. However, if the elements in the viscoelastic layer of the finite element model are given different stiffness and loss properties depending on the loading amplitude level, frequency dependence is shown to be more accurate compared to experiments. The commercial finite element program Ansys is used to model an industrial metal rubber part using two layers of elements. One layer is a hyper viscoelastic layer and the other layer uses an elasto-plastic model with a multi-linear kinematic hardening rule. The model, being intended for stationary cyclic loading, shows good agreement with measurements on the harmonically loaded industrial rubber part.</p>},
  author       = {Kareaga, Z. and Guraya, T. and Arriaga, A. and Austrell, P. E.},
  booktitle    = {Constitutive Models for Rubber IX - Proceedings of the 9th European Conference on Constitutive Models for Rubbers, ECCMR},
  isbn         = {9781138028739},
  language     = {eng},
  pages        = {205--218},
  publisher    = {CRC Press/Balkema},
  title        = {Extending the overlay method in order to capture the variation due to amplitude in the frequency dependence of the dynamic stiffness and loss during cyclic loading of elastomers},
  year         = {2015},
}