Discussion:
history output of nodal stress values
ANDI
2011-10-10 02:32:19 UTC
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Hello,

I need to get the stress values of a set of nodes and keep the maximum stress values at each node. Writing a python script I can get the history output for displacements and pore pressure at every node of interest, but from what I read on the abaqus manuals stresses are given only for elements. Can anyone propose me a strategy of getting the history output of the stress values at a node(or frame values at a nodal set), using a python script, or maybe using a fortran subroutine? I would be grateful.

Regards,
Andi
D D
2011-10-10 14:18:02 UTC
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*EL PRINT

POSITION
Set POSITION=AVERAGED AT NODES if the values being printed are the averages of values extrapolated to
the nodes of the elements in the set. Since variables may be
discontinuous between elements with different properties,
Abaqus/Standard breaks the output into separate tables for different
element property definitions within the element set specified.
Abaqus/Standard will also output elements of differing types separately. Thus, averaging will occur only over elements that contribute to a node that have the same type.
Set POSITION=CENTROIDAL if values are being printed at the centroid of the element (the
centroid of the reference surface of a shell element, the midpoint
between the end nodes of a beam element).
Set POSITION=INTEGRATION POINTS (default) if values are being printed at the integration points at which the variables are actually calculated.
Set POSITION=NODES if the values being written are extrapolated to the nodes of each element in the set but not averaged at the nodes.

"Keywoed reference manual", you have to write this command in the .inp file and you going to get the results in the .dat file.

Mendiguren




________________________________
De: ANDI <***@yahoo.com>
Para: ***@yahoogroups.com
Enviado: lunes 10 de octubre de 2011 4:32
Asunto: [Abaqus] history output of nodal stress values


 
Hello,

I need to get the stress values of a set of nodes and keep the maximum stress values at each node. Writing a python script I can get the history output for displacements and pore pressure at every node of interest, but from what I read on the abaqus manuals stresses are given only for elements. Can anyone propose me a strategy of getting the history output of the stress values at a node(or frame values at a nodal set), using a python script, or maybe using a fortran subroutine? I would be grateful.

Regards,
Andi




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