Modeling Hyperelastics with Response Function
Hello, I have a few general questions on using the Response Function:
Is there any reason to use the classical hyperelastic constitutive models (neo-hookean, blatz-ko, arruda-boyce, etc) if I have, or can acquire, test data from a set of samples and want to use the Response Function model?
In addition to that, lets say my Instron output provides 13,000 stress/strain data points and I want to upload that as a CSV into the uniaxial tension test data, will the number of data points affect my overall solution time? Is there a limit to the amount of input data?
Last question: If I have a case of multiaxial loading in my model, which data sets (compression, shear, volumetric, biaxial etc) are recommended to fully define the stress strain response?
Thanks for your help! These questions are not related to a specific working analysis, I am just planning how I may use Response Function in the future.