Re: How to measure change in dimension?
I tried with creating all the 3 measure but no luck... Is it so difficult to measure a simple change in dimension of particular features!!
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I am sure you guys must be experts in the simulation but, I am not sure about those stress. I am not from simulation background.I goal is very simple. I am to measure the change in ID & OD of a...
View ArticleRe: How to measure change in dimension?
When you say "no luck", what exactly happened? Also, what are your units of stress? I thought the numbers looked large, but are they MPa or Pa? In any case it looks like you have some very small...
View ArticleRe: How to measure change in dimension?
You can do a simple hand calculation to get a first estimate, and check if your FE analysis results are in the same order of magnitude.I'm sure there is a suitable formula in Roark's for your case
View ArticleRe: How to measure change in dimension?
" No Luck" means values I derived are similar to what I got earlier. My units are in Pascals i.e.784532 Pa. I have attached a fresh model with all loads and constraints
View ArticleRe: How to measure change in dimension?
You appear to have applied a uniform pressure over the entire component - both inside and out. Are you expecting it to do anything at all? Are you trying to model HIPping (hot isostatic pressing)? As...
View ArticleRe: How to measure change in dimension?
The load is applied only at the "OD" (not from inside).I am not sure about the terminology of HIPping !Yes, The inner ID is constraint so that it should not move and expand.
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Re: How to measure change in dimension?
Check your pressure load carefully - on the model I copied from inside MyAnalysis, the pressure was applied to all surfaces. If I correct that, and create three separate measures as I suggested, I get:...
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Re: ...and one more Thermal thing
Gavin: My work around (Gee, one must come up with a lot of work-arounds for Creo) is to apply a high convection condition and a changing bulk fluid temperature to the surface with changing temperature...
View ArticleRe: How to measure change in dimension?
I did it and found the same results, But I what is the significance of the max_disp_x and CylZ values?Does those value means that the ID of the part will deform/move -0.0046011 towards center of the...
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Fasteners fail
Creo3.0 M030 My surfaces are flat, holes are co-axial, only 2 components, the most benign model imaginable and (grrr) ITAR. Original geometry from Solidworks. No lead in chamfers (first thing I dealt...
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Do the holes that the threads are ******** into have a counter bore? Those are also not allowed.Do the holes break through creating a non square edge for selecting the fastener ending reference? In...
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Re: Fasteners fail
Don, No rest for you either eh? This is a typical hole, fastener edge references highlighted. Fastener head has smaller diameter than its counter bore. I've done 1000's like this and have never...
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The following doesn't help : Making the threaded hole square ended Making the holes in both parts exactly the same diameter Messing about with accuracy
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Re: Fasteners fail
Have you looked at the head diameter or seperation diameter? Might be to big for the counter bore.
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I have a contact interface defined so there is no separation diameter. Fastener head surface region is smaller diameter than the counter bore surface diameter. The message states that it cannot...
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Re: Fasteners fail
I'll wager that it is a failure to correctly evaluate surface normals in the import geometry and that the solid modeling kernal has a tweak to hide the defect from the user but the analysis software...
View ArticleRe: Creo Simulate - stress and displacement dont fit together?
I see your point but as said, Im positive that is right. The small Young's Modulus is because I am simulating tissue, which is actually hyperelastic. Is it a possibility that the mistake comes from...
View ArticleRe: Fasteners fail
Jonathan,I will need to dig deeper into filters as I did not edit your post.Best,Toby
View ArticleRe: Creo Simulate - stress and displacement dont fit together?
My we look at the model? Can you upload it?
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