This is test data used in the SIMULIA course "Testing and Analysis of Elastomers" taught at the Axel Products test facility.   www.axelproducts.com

This test data would be used to calibrate a hyperelastic+Prony series material model. The data includes a short time (instantaneous) uniaxial test, plus a series of stress relaxation tests over a range of strain loadings.  This type of test data is valuable for understanding whether linear viscoelasticity is applicable, or whether one should model the behavior with nonlinear viscoelasticity - PRF model. 

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