One of our biggest challenges at SIMULIA is obtaining test data that can be shown to others. For this post, we were fortunate to have access to this paper. It was also helpful that the paper showed test data as well as a fully developed Abaqus material model (in the appendix).

Juan-Sebastian ARRIETA, Julie DIANI, Pierre GILORMINI - Experimental characterization and thermoviscoelastic modeling of strain and stress recoveries of an amorphous polymer network -Mechanics of materials - Vol. 68, p.95-103 - 2014

This is an author-deposited version published in: http://sam.ensam.eu Handle ID: .http://hdl.handle.net/10985/7357

And the author kindly shared his test data with me (see figure 1 of the paper, or image below). I have modified the data slightly by removing some of the points. The DMA test data spans about 7 decades of time/frequency.  The test data is one the tab labeled "Arrieta Test Data".

There is a related post named "Calibration of Prony series from DMA test data".

The video below demonstrates our 3DX calibration app, version R2021x HotFix 2.7.  The DMA data is imported from Excel and we walk through the calibration process.  For DMA test data, or any test data that spans a large range of stress/stiffness, it is important to select the RSE error norm.  We also know that the Particle Swarm optimizer is very effective for this class of problems. This video is 12min40secs.

Back to:  Sharing Material Test Data

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