what values to be used for *Surface Behaviour in ABAQUS
what values to be used for *Surface Behaviour in ABAQUS
(OP)
Dear all,
Currently im analysing the dynamic impact onto composite panel. However, compared to experimental results, FE analysis over-predicts in terms of contact force. So now im trying to have soften contact behaviour using *Surface Bahavior with PRESSURE-OVERCLOSURE=EXPONENTIAL. However, I do not have any clue what values I have to put for this contact card. According to the abauqus documentation, it says that 1st column should be clearance ( does it mean the initial distance b/w an impactor and the target) and 2nd column Pressure at zero clearance, etc. Should I put any arbitrary values or is there any equations that I need to follow?
Regards,
Minki
Currently im analysing the dynamic impact onto composite panel. However, compared to experimental results, FE analysis over-predicts in terms of contact force. So now im trying to have soften contact behaviour using *Surface Bahavior with PRESSURE-OVERCLOSURE=EXPONENTIAL. However, I do not have any clue what values I have to put for this contact card. According to the abauqus documentation, it says that 1st column should be clearance ( does it mean the initial distance b/w an impactor and the target) and 2nd column Pressure at zero clearance, etc. Should I put any arbitrary values or is there any equations that I need to follow?
Regards,
Minki





RE: what values to be used for *Surface Behaviour in ABAQUS
That will lead you either to inverse identification of the parameters or to see that your problem is somewhere else.