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ELEMENT IS SWITCHED TO SMALL STRAIN OPTION

i do some disc brake analysis and this happen to me but im not understand, can someone tell me the problem to fix this analysis?

MESSAGE ID : 259
** WARNING ZERO OR NEGATIVE VOLUME: 3D-ELEMENT ID: 312004
ELEMENT IS SWITCHED TO SMALL STRAIN OPTION
MESSAGE ID : 259
** WARNING ZERO OR NEGATIVE VOLUME: 3D-ELEMENT ID: 262886
ELEMENT IS SWITCHED TO SMALL STRAIN OPTION
MESSAGE ID : 259
** WARNING ZERO OR NEGATIVE VOLUME: 3D-ELEMENT ID: 84602
ELEMENT IS SWITCHED TO SMALL STRAIN OPTION

10-5-check.hm

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Radioss

v2024

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Marina_Lima

Hi,

Check you material property, you need to use a consistent systems of units. For example, if part lengths are in millimeters and the elastic modulus in GPa, the density should be in kg/mm3. This table is from OptiStruct, but the same applies to Radioss:

Best regards,
Marina Lima