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Hyper model and Baker Ericksen inequalities

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(@joneswright)
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Joined: 11 years ago

Hi All,

As part of my work, I conducted uniaxial compression test on agar samples and fitted Mooney rivlin model. I have the following queries.

1. Is uni axial test sufficient to fit a particular hyper elastic model for isotropic in-compressible material?

2. If one of the Mooney Rivlin coefficients (say for eg. C10) is negative, based on the Baker Ericksen inequalities, can we reject the model for that material?

Please throw some light on this. It would be much helpful.

Kavitha

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