about section recorder

[hnsmengyu]

According to the user mannual, the output format for the "section force" of the ELEMENT RECORDER command is :
section force Fx Mx
if the numbers of integration points are 5, and the first point is recorder, i.e. -ele $eleID section 1 force
there are four output datas for each element section the first two data are section Fx and Mx, BUT what does the last two datas mean?

[vesna]

would you post your code so I can look at it?

[hnsmengyu]

recorder Element -file $dataDir/Moment.txt -time -ele 211 section 1 force
the output file have five columns of data

[vesna]

Is your model in 2D or 3D? Did you aggregate shear or torsion to your sections? If you did it let me know which ones did you aggregate.

[fmk]

replace -file with -xml to see what the columns represent

[hnsmengyu]

The model is 2D and the section is aggregated with torsion(where G is a really large number).
If the "xml" is used in the recorder cmmand, the output information is:
<ResponseType>P</ResponseType>
<ResponseType>Mz</ResponseType>
<ResponseType>P</ResponseType>
<ResponseType>T</ResponseType>
It is easy to understand
But if the deformation is recorder (recorder Element -xml $dataDir/Curve.txt -time -ele 211 section 1 deformation),the output information is :
<ResponseType>eps</ResponseType>
<ResponseType>kappaZ</ResponseType>
<ResponseType>eps</ResponseType>
<ResponseType>theta</ResponseType>
so what does the "kappaZ" and "theta" represents？

[vesna]

kappaZ is a curvature that corresponds to moment Mz, and theta is the angle of twist that corresponds to T.