FEA - Static Condensation Example?

Click For Summary

Discussion Overview

The discussion revolves around the static condensation process in finite element analysis (FEA) and its relationship to substructuring. Participants seek clarification on definitions and examples related to these concepts.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant requests online resources for examples of static condensation, suggesting it may be synonymous with substructuring.
  • Another participant asserts that static condensation and substructuring are not the same, defining substructuring as the removal of a small model section from a larger model.
  • A third participant describes static condensation as a matrix manipulation to eliminate known variables from the system and references a specific online paper that discusses related techniques.

Areas of Agreement / Disagreement

Participants express differing views on the definitions and relationships between static condensation and substructuring, indicating that multiple competing views remain unresolved.

Contextual Notes

There are limitations in the definitions provided, as participants do not fully explore the mathematical implications or specific conditions under which static condensation applies.

bugatti79
Messages
786
Reaction score
4
Folks,

Can anyone point me to an online source detailing an example of the static condensation process in finite elements. I believe sub structuring is another term used to describe the same process.

Regards
Bugatti
 
Engineering news on Phys.org
I don't know of a source for describing static condensation but it is not the same as substructuring. Substructuring is when a small model section is removed from the large model. Static condensation is a mathematical problem with certain element types.

Thanks
Matt
 
Static condensation is just a matrix manipulation to eliminate part of your system that contain known variables, like imposed forces. I think it's also in Schaum's outline FEA, but there is an online paper called 'sub-modeling techniques for static analysis' by Angel Martinez Aja that explains it in detail.
 
Thanks folks for that.
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 9 ·
Replies
9
Views
4K
  • · Replies 5 ·
Replies
5
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 7 ·
Replies
7
Views
4K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 10 ·
Replies
10
Views
7K
Replies
5
Views
2K
Replies
12
Views
2K