Stress Analysis in CATIA
Stress Analysis in CATIA
(OP)
I a new to CATIA and just getting my head around stress analysis in catia. Could someone explain the reason behind creating meshes? Can stress analysis be done from a solid model once material has been applied or must it be a surface model?
Any responses will be appreciated
Any responses will be appreciated





RE: Stress Analysis in CATIA
the mesh creates the points on the structure where FE does it's calcs ... more points, better resolution of the stresses.
the CATIA manual should explain this, and provide references for more explanation.
RE: Stress Analysis in CATIA
RE: Stress Analysis in CATIA
RE: Stress Analysis in CATIA
NicStr - if you have no experience/knowledge with finite element analysis (and your question strongly suggests that), then you should not be using the stress analysis in CATIA or anything else. Get proper training, and hopefully get someone local there to mentor you.
RE: Stress Analysis in CATIA
RE: Stress Analysis in CATIA
Your overall capability will only be as good as your ability to provide the correct input, understand, interpret, and correlate the results from the FEM. Most (all) people who are good at FEM have a solid background with the various element types with a standard FEM solution (beyond solid meshing of a CAD model). They are also qualified analysts.
There are many people who believe that you should not touch a FEM unless you are a qualified structural analyst. Otherwise, the likely GIGO scenario is expected. Though I won't go that far, it is hard to argue with that mentality when you see the rampant poor use/abuse of FEM...especially when it comes to CAD based FEM.
Brian
www.espcomposites.com
RE: Stress Analysis in CATIA
RE: Stress Analysis in CATIA
RE: Stress Analysis in CATIA
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Stress Analysis in CATIA
The CATIA FEM utilities support both solid and surface meshes, as well as beam elements. What options are available depends on your licensing. You may be limited to only solid tet meshes. Which type of mesh is appropriate depends on many factors such as geometry.
I highly recommend you become familiar with the CATIA FEM tools if you have the opportunity to work with an experienced stress analyst. It really is a great utility.
Good luck.
John
www.AtlanticCoastAerospace.com