Non-physical stress values at contact interface Stress model

taillanm · July 8, 2016, 05:02

Hello all,

I am using the finite volume stress model implemented in StarCCM+ to do some stress analysis; I am modeling a ring-on-ring standard (ASTM) test on a hemspherical hollow body.
The lower ring is fixed and on the upper one I apply a small (2.5e-5m) displacement. My interfaces are OK (conformal mesh) but I obtain really strange stress values at cells bordering the contact interface.
Is someone familiar with such problems?

Max

marmot · July 8, 2016, 08:43

I believe it is now in 11_02 they have a finite element stress solver, perhaps try this,

Just to test, you could try fusing the boundaries to see if it is a bug with contact interface,

July 8, 2016, 05:02	Non-physical stress values at contact interface Stress model	#1
taillanm Member Join Date: Nov 2015 Posts: 57 Rep Power: 10	Hello all, I am using the finite volume stress model implemented in StarCCM+ to do some stress analysis; I am modeling a ring-on-ring standard (ASTM) test on a hemspherical hollow body. The lower ring is fixed and on the upper one I apply a small (2.5e-5m) displacement. My interfaces are OK (conformal mesh) but I obtain really strange stress values at cells bordering the contact interface. Is someone familiar with such problems? Max

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July 8, 2016, 08:43		#2
marmot Senior Member kevin alun Join Date: Sep 2011 Location: Germany Posts: 106 Rep Power: 14	I believe it is now in 11_02 they have a finite element stress solver, perhaps try this, Just to test, you could try fusing the boundaries to see if it is a bug with contact interface,