How do I associate the temperatures with their related Superelastic sigmas?
My first "working" model does not have ANY temperatures associated with the sigmas :
...yet when I simulate a small segment of wire I am able to get deformation :
...and subsequent return to original length :
Big Q: Is my "working" model returning to original length because of the SMA / superelastic properties i.e. I entered the material properties correctly? OR is it returning to original length regardless of my incorrect inputs?
2nd big Q: If my inputs are "correct", then how come my "working" model is not going from austenitic to stress-induced martensitic transformation? I have been running the simulation with a greater and greater force to cause elongation and deformation, but I have not yet seen the wire retain an elongated length. What am I missing? Is there a way to set the initial condition such that my sample begins in austenitic form?
3rd big Q: Ansys and all other documents seem to emphasize the same thing: the stress-strain curve must be input with values into material properties in order for Ansys to simulate the SMA/superelastic effects. However, neither of my models has a temperature associated with each sigma. I think this is incorrect on my part; how do I input the stress-strain curve PROPERLY?
Any help is greatly appreciated!! A tutorial would be awesome *hint*hint* ;D