a wrong unit system used in verification test 201?
a wrong unit system used in verification test 201?
(OP)
Hi,
VM201 is the Verification Test of Rubber Cylinder Pressed Between Two Plates.
I noticed the VM201 used a strange unit system where length unit is m, force unit is N but Young's modulus unit is MPa.
/VERIFY,VM201
...
R = 0.2 ! RADIUS OF CYLINDER
!!no unit is given in its list, but meter unit is used in the description of this verification example.
...
MP,EX,1,2.82 ! YOUNG'S MODULUS [MPA]
MP,NUXY,1,0.49967 ! POISSON'S RATIO
Is there anything wrong with the unit system used in VM201?
Thanks,
Tsukuba
VM201 is the Verification Test of Rubber Cylinder Pressed Between Two Plates.
I noticed the VM201 used a strange unit system where length unit is m, force unit is N but Young's modulus unit is MPa.
/VERIFY,VM201
...
R = 0.2 ! RADIUS OF CYLINDER
!!no unit is given in its list, but meter unit is used in the description of this verification example.
...
MP,EX,1,2.82 ! YOUNG'S MODULUS [MPA]
MP,NUXY,1,0.49967 ! POISSON'S RATIO
Is there anything wrong with the unit system used in VM201?
Thanks,
Tsukuba





RE: a wrong unit system used in verification test 201?
RE: a wrong unit system used in verification test 201?
I am sorry I cannot get what you said. I think the key point is the displacement controlled analysis. I want to know why the units of force are Newtons in a displacement controlled analysis if the stresses are in MPa.
In fact, I think the units of force are MegNewtons, because meters, MegNewtons and MPa are consistent unit system. If the force are in Newtons, then the lengths should be in millimeters.