Creep Test Data

I need creep test data to model viscoleastic behavior,

For now i dont have the data , i will be doing some tests later,

Does any1 knows where can i get the data from?

Thanks

I need to perform creep test. My material modulus is in the range of 0.7-0.8 GPa with a Yield Stress of 14-18 MPa.
At what creep stress should i be conducting the the test.
I did test at 1-8 MPa with a hold time of 1800 sec.
But my committee members asked my the reason i choose these values and not other stress values.
He said there is some criteria to judge creep stress value like 5% of max stress.
Could any1 help me in this regard
Thanks