Question regarding units in Abaqus
Question regarding units in Abaqus
(OP)
Hello All,
I have a question regarding units:
I have the length in ( micrometer )
Young's modulus and yield stress in ( MPa )
I am using DLOAD subroutine to apply Pressure
The Pressure is a function of distance ( which in micrometer ) and Adhesion Energy
The Adhesion Energy is energy/unit area
If I want to use Adhesion Energy = 1 J/m^2
What value I should enter with the above unit system to be consistent
THANKS to every one
I have a question regarding units:
I have the length in ( micrometer )
Young's modulus and yield stress in ( MPa )
I am using DLOAD subroutine to apply Pressure
The Pressure is a function of distance ( which in micrometer ) and Adhesion Energy
The Adhesion Energy is energy/unit area
If I want to use Adhesion Energy = 1 J/m^2
What value I should enter with the above unit system to be consistent
THANKS to every one





RE: Question regarding units in Abaqus
If the base units are;
Length - micrometres µm
Force - micronewtons µN
Time - seconds (s)
then;
Energy is in pJ (1e-12 J)
Should be able to work out the adhesion energy from that
Regards
Martin Stokes CEng MIMechE
RE: Question regarding units in Abaqus
RE: Question regarding units in Abaqus
Regards
RE: Question regarding units in Abaqus
The PDF I keep pinned up is this one, from PolymerFEM.com
Regards
Martin Stokes CEng MIMechE
RE: Question regarding units in Abaqus
I use the same units and try to not deviate. That is a good sheet. Attached is what I have compiled. I do not remeber where I found it all but I think one of the pages was from LS-DYNA. Enjoy.
Rob Stupplebeen
RE: Question regarding units in Abaqus
I really want to Thank all of you for your helpful information .
Thanks