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ABAQUS

ABAQUS

(OP)
Hello, Ive got problems with abaqus:

1) ***ERROR: 30 elements have missing property definitions. The elements have
been identified in element set ErrElemMissingSection.
***NOTE: DUE TO AN INPUT ERROR THE ANALYSIS PRE-PROCESSOR HAS BEEN UNABLE TO
INTERPRET SOME DATA. SUBSEQUENT ERRORS MAY BE CAUSED BY THIS OMISSION
*boundary

2) ***ERROR: The volume of 2 elements is zero, small, or negative. Check
coordinates or node numbering, or modify the mesh seed. In the case
of a tetrahedron this error may indicate that all nodes are located
very nearly in a plane. The elements have been identified in element
set ErrElemVolSmallNegZero.

What should I do?
Please help me.

RE: ABAQUS

1) You probably don't have a section or material defined for these specific elements. Check to make sure it is "green" colored within the property tab.

2) Look at your mesh! Go to the mesh module and click the mesh validation check mark button. The magenta colored elements are invalid elements.

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