Element recorder

aliirmak · Post by **aliirmak** » Mon Jan 14, 2008 3:37 pm

Hi all Openseesers,

I want to record shear force(or stress) at an element. Let's say I want to get the data of the second integration point assuming that element has 5 integration points.

Thanks for the helps.

silvia · Post by **silvia** » Mon Jan 14, 2008 8:15 pm

The section force recorder at that integration point should give you those values.

aliirmak · Post by **aliirmak** » Tue Jan 15, 2008 4:11 am

Thanks for the answer.

However when I use the code in the manual

Code: Select all

recorder Element -file ele1sec1Force.out –time -ele 1 section 2 force

it generates a file which contains no data.I also assumed that command will not produce any shear force vs displacement(or at least only shear force) since section output may only give fx and mx(axial load and torsion?)?

silvia · Post by **silvia** » Tue Jan 15, 2008 12:23 pm

it depends on whether you have aggregated shear, as elastic shear.
no, you will not get shear deformation.
there is no real shear deformation in the element, unless you aggregate it elastically.

amin_asareh · Post by **amin_asareh** » Wed Jan 16, 2008 2:59 am

Hi,

You can use more elements at the point that you want your results and then use the global force recorder for a Particular element. direction 2 is the shear force in the data given by this recorder.

aliirmak · Post by **aliirmak** » Wed Jan 16, 2008 3:06 am

your suggestion is very clever.

I think it would be also possible to add a node at that point but anyway, that seems more helpful.

Thanks for the answer.