On the Relation between Stress Relaxation and Constant Strain Rate Tensile Behavior for Linear Viscoelastic Materials; An Engineering Approach

Gábor Bódai; Tibor Goda

doi:10.4028/www.scientific.net/MSF.729.314

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HomeMaterials Science ForumMaterials Science Forum Vol. 729On the Relation between Stress Relaxation and...

On the Relation between Stress Relaxation and Constant Strain Rate Tensile Behavior for Linear Viscoelastic Materials; An Engineering Approach

Abstract:

The present paper, as a first step summarizes briefly the master curve construction methods applying the stress relaxation and DMTA based approach. Then, authors make recommendation to increase the covered time (frequency) domain of relaxation modulus master curve coming from standard tensile tests-performed at wide temperature range-by utilizing the time-temperature superposition principle. The proposed approach is used for natural rubber, whose tensile tests, for the sake of simplicity, are replaced by calculated engineering stress-strain curves. All in all, the proposed method gives fast and reliable way for engineers to identify the parameters of spring-dashpot models.

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Periodical:

Materials Science Forum (Volume 729)

Pages:

314-319

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.729.314

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Online since:

November 2012

Authors:

Gábor Bódai, Tibor Goda

Keywords:

Linear Viscoelasticity, Stress Relaxation, Tensile Test

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