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Adding viscoplastic property

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Old   March 9, 2017, 11:24
Default Adding viscoplastic property
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I am trying to analyse the viscoplastic behavior of Stainless steel in ansys workbench, and i dont know how to define material parameters for anand Viscoplastic model. And I am not sure, which parameters to add on, so that the steel can exhibit the viscoplastic behaviour. I am using ansys 17 workbench.
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Old   March 21, 2017, 23:32
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In the static/transient structure module, there is an option for "Engineering data". Use this to define the desired properties.
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Old   March 22, 2017, 01:45
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Quote:
Originally Posted by rajurastogi View Post
In the static/transient structure module, there is an option for "Engineering data". Use this to define the desired properties.
Thank you for the reply. I am trying to use either perzyna model or pierce model for viscoplasticity. But i cannot find this option in Engineering data. Could you please help me with this finding this? These are available in mechanical ADPL, but I could not find in Ansys workbench.
Thank you.
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Old   March 23, 2017, 07:43
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Unfortunately the Perzyna and Peirce model is not directly implemented in Ansys workbench. But as you mentioned it is available in APDL classic.

What you can simply do add the material properties under the geometrical definition with an APDL snippet (command object > rmb on your part > insert > command object).
There you can add the Perzyna model using the apdl command as you do in APDL classic.

C1 = 0.8 ! Hardening param
C2 = 0.1 ! Viscosity param
TB, RATE, matid,1,2,perzyna
TBDATA,,C1,C2
Tblist,all,all

If you need temperature dependent material use the TBTEMP command.
Have fun
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Old   March 23, 2017, 10:36
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Thank you so much for the reply :-)
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