A constitutive model and FEA of rubber under small oscillatory load superimposed on large static deformation

A heuristic constitutive equation and an FE formulation for rubber under small oscillatory loads superimposed on large static deformations are presented. The viscoelastic constitutive model, [9], is implemented in an FE code to analyze the dynamic characteristics of rubber elements under general loading conditions. Dynamic tests in which the rubber specimens endure steady-state harmonic motion superimposed on large static deformation are performed in order to verify the proposed model. Compression and complex-stress tests are included in the tests to check the proposed model under multi-axial stress states. The FEA results are compared with the experimental results. The proposed model successfully predicts dynamic stiffness peak in the complex-stress test, which cannot be explained by conventional models. The model shows a better performance than existing models in predicting the behavior of rubber specimens that are subject to complex pre-strain.
Publisher
SPRINGER
Issue Date
2004-06
Language
ENG
Keywords

FORMULATION; MELT

Citation

ARCHIVE OF APPLIED MECHANICS, v.73, no.11-12, pp.781 - 798

ISSN
0939-1533
DOI
10.1007/s00419-004-0325-x
URI
http://hdl.handle.net/10203/3151
Appears in Collection
ME-Journal Papers(저널논문)
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