# What is 10 FE 10?

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What is 10 FE 10?
 Äèëøîä Õîìèäîâ Visitor Posts: 56 Points: 46 Joined: Jun 30, 2007 #1 Jan 11, 2017 12:27:02 There is a need to check the building analytic model. I met there FE 10. So I’ve got a question.When and in which cases FE 10 should be used?Thank you in advance!
 ander Guru Posts: 1399 Points: 2377 Joined: May 31, 2007 #2 Jan 11, 2017 15:17:34 In concept, in all. Firstly, the rigid bodies modeled by bars. Secondly, if you work with a non-standard cross section. Thirdly, if it is necessary to take into account one or more of the stiffness, but not all, in other words, setting not all cross-section geometric properties. There may be other situations, if there is nothing suitable in your model, you should ask the author.
 Toffe Visitor Posts: 76 Points: 70 Joined: Jan 6, 2014 #3 Jan 16, 2017 15:03:58 Please tell me, when setting a perfectly rigid body by FE-10, which characteristics must be defined? If you specify just the stiffness, then before the analysis it pops out "Warning: it is required to set non-zero values of core distances of a bar cross section." Does it have an effect on the analysis? Attached Files FE10.png (6.74 Kb)FE10-1.png (7.21 Kb)
 ÀëåêñåéVIP Expert Posts: 335 Points: 588 Joined: Sep 21, 2009 #4 Jan 18, 2017 11:15:40 Of course it has. LIRA just throws them out of the scheme. You specify a bar with two points, so in this case you have also to specify a PRB with two core centers.
 Toffe Visitor Posts: 76 Points: 70 Joined: Jan 6, 2014 #5 Jan 23, 2017 13:15:17 Then could you tell me, how to identify them?
 ander Guru Posts: 1399 Points: 2377 Joined: May 31, 2007 #6 Jan 23, 2017 14:48:34 Toffe, it doesn’t impact on the FEM analysis, in fact, usually FE 10 is some artificial and not of interest for me stiffness, so there’s no sense to set the core distances. And they are necessary only to calculate correctly the DCL. I mean to take into account all criterions provided by the software package. The cross-section is not standard and the SP can’t identify the "extreme point".It is written that it is related only to the DCL.
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