VOCE CONSTANTS 2

[odonovane]

Hi all,

my query deals with Voce constants in his constitutive law. I need to know three (of 4) material constants in the law for implementation in the Ansys design package, outside of the yield stress, for 316L Stainless steel.

Hope you can help,
Eoin

 

[NickE]

Odonovane-

What are the Voce constants?

Our FEA guy also uses Ansys, He always needs to know Young's modulus (modulus of Elasticity), 29000KSI (or thereabouts IIRC, Ultimate Tensile strength, 65-90KSI (depending on form and processing), You said you have yeild stress, the only other one (physicla property) I have easily is %elongation at break, 30-40.

Hope this helps
Nick

 

[CoryPad]

Voce constants are part of an equation that relates material strengthening vs. accumulated strain. The information required includes critically-resolved shear stress, strain hardening rate, and accumulated strain. It is being used with the Viscoplastic Self-Consistent Model for metal deformation. Information on this subject would be limited to reviewed journals such as Metallurgical and Materials Transactions A and Materials Science and Engineering A. I recommend you search for this information at Scirus:

http://www.scirus.com

 

[NickE]

Wow a little more involved than tensile test data.

thx CoryPad

nick

 

[joltinjohn]

Just wondering if you guys found any information on this data type? I am running some non linear stuff and I cant find any voce constants for particular metals.