Odd records

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Jhno
Posts: 214
Joined: Sat May 05, 2012 2:55 pm
Location: Laval

Odd records

Post by Jhno »

Hi,
when I issue the command " recorder Element -file Stress.out -ele $id material 1 stress " I get odd data.
I do obtain the following after three run of analysis.
-2943 -4414.5 -2943 -2.78795e-011 0
-5846.59 -8906.95 -5901.41 -364.249 0
-7298.38 -11153.2 -7380.62 -546.374 0

Odd thing is I get 5 different values? When I print the element id at the command prompt, column #1 #2 and #4 are correct. I do not know, however, what are column #3 and #5 ?
Should I not get the data from XX YY and XY (that is, three column?? What are those other column supposed to be?).
Thanks for the help!
skamalzare
Posts: 112
Joined: Thu Jun 27, 2013 11:45 am
Location: Seattle, WA

Re: Odd records

Post by skamalzare »

Hi Jhno,

It really depends on the material you are using. For example if you are using ND-Material: PDMY for 2D problems you will record: Sigma_XX, Sigma_YY, Sigma_ZZ, Sigma_XY and Eta_r. Where Eta_r is the ratio between the shear (deviatoric) stress and peak shear strength at the current confinement.

For more information, you can look at the wiki for explanation of specific materials. The information, I gave you, was from :

http://opensees.berkeley.edu/wiki/index ... d_Material

Best Regards,
S.K.
---
PhD, EIT, Geotechnical Engineer
Condon-Johnson & Associates INC
Jhno
Posts: 214
Joined: Sat May 05, 2012 2:55 pm
Location: Laval

Re: Odd records

Post by Jhno »

Thanks for the info ! :mrgreen:
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