STRAIN-CONTROLLED BIAXIAL TENSION OF NATURAL RUBBER: NEW EXPERIMENTAL DATA

Francesco Q. Pancheri, Luis Dorfmann

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We present a new experimental method and provide data showing the response of 40A natural rubber in uniaxial, pure shear, and biaxial tension. Real-time biaxial strain control allows for independent and automatic variation of the velocity of extension and retraction of each actuator to maintain the preselected deformation rate within the gage area of the specimen. Wealso focus on the Valanis-Landel hypothesis that is used to verify and validate the consistency of the data.Weuse a threeterm Ogden model to derive stress-stretch relations to validate the experimental data. The material model parameters are determined using the primary loading path in uniaxial and equibiaxial tension. Excellent agreement is found when the model is used to predict the response in biaxial tension for different maximum in-plane stretches. The application of the Valanis-Landel hypothesis also results in excellent agreement with the theoretical prediction.
Original languageEnglish (US)
Pages (from-to)120-138
Number of pages19
JournalRubber Chemistry and Technology
Volume87
Issue number1
DOIs
StatePublished - Mar 2014
Externally publishedYes

Fingerprint

Dive into the research topics of 'STRAIN-CONTROLLED BIAXIAL TENSION OF NATURAL RUBBER: NEW EXPERIMENTAL DATA'. Together they form a unique fingerprint.

Cite this