Inventor General Discussion

Inventor General Discussion

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Distinguished Contributor
JavaLodge
Posts: 106
Registered: ‎11-12-2013
Message 1 of 4 (401 Views)
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Stress Analysis Highest Local Stress

401 Views, 3 Replies
12-27-2013 12:37 PM

Hi everyone,

 

I've been doing a lot of work with the Stress Analysis recently, and I have wondered if a certain feature exits.  When I am interpreting the results of a simulation, I'll use the probe to find out the stress in certain areas.  The problem is that I can't be certain that I've picked the point of highest stress in a certain area.  I know that I can find the highest overall stress, but it's hit or miss finding the 'highest local stress' as I've come to call it.  I need to be able to prove that a certain member's stress is below the allowable stress, and I can't be certain of the member's highest stress unless y'all know of some way.  Thanks in advance.

 

I am running Autodesk Inventor Professional 2014, 64-bit.

____________________________________________________________
Eat when you're hungry, sleep when you're tired. -Bruce Lee

JavaLodge wrote:

 

I need to be able to prove that a certain member's stress is below the allowable stress, and I can't be certain of the member's highest stress unless y'all know of some way.

 


I believe that you can change the scale of the stresses that are displayed from the analysis; just set the maximum stress displayed to be slightly higher than your allowable stress and the colour gradient will visually show you if the area of concern is above or below your threshold.

 

As I don't have a version of Inventor that can do FEA, I cannot be sure of all the options; but in Solidworks you can change the number of colours used and if they are discrete zones, points, lines or a gradient as well as change the minimum and maximum reported stress -- I would assume that Inventor has similar functionality.

 

HTH

Valued Contributor
conklinjm
Posts: 63
Registered: ‎02-23-2009
Message 2 of 4 (387 Views)

Re: Stress Analysis Highest Local Stress

12-27-2013 01:31 PM in reply to: JavaLodge

JavaLodge wrote:

 

I need to be able to prove that a certain member's stress is below the allowable stress, and I can't be certain of the member's highest stress unless y'all know of some way.

 


I believe that you can change the scale of the stresses that are displayed from the analysis; just set the maximum stress displayed to be slightly higher than your allowable stress and the colour gradient will visually show you if the area of concern is above or below your threshold.

 

As I don't have a version of Inventor that can do FEA, I cannot be sure of all the options; but in Solidworks you can change the number of colours used and if they are discrete zones, points, lines or a gradient as well as change the minimum and maximum reported stress -- I would assume that Inventor has similar functionality.

 

HTH

*Expert Elite*
blair
Posts: 4,334
Registered: ‎11-13-2006
Message 3 of 4 (380 Views)

Re: Stress Analysis Highest Local Stress

12-27-2013 01:46 PM in reply to: conklinjm
There are a couple of boxes with little boxes in the Upper RH and Lower LH corner. This will display the Max and Min points on your results.
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Distinguished Contributor
JavaLodge
Posts: 106
Registered: ‎11-12-2013
Message 4 of 4 (373 Views)

Re: Stress Analysis Highest Local Stress

12-27-2013 02:08 PM in reply to: blair

Well, I did say in my original post that I did know how to find the highest overall stress.  Maybe I didn't explain well enough.  I was hoping that there was some sort of tool where you could circle select an area and it would find the highest stress in that area.  I did figure out that I could manipulate the color bar to give me more meaningful results, thanks conklinjm.  It's not ideal, because it takes a few iterations of guess and check to be able to find exactly what you're looking for, but I guess it's good enough for now.  Thanks guys.

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Eat when you're hungry, sleep when you're tired. -Bruce Lee
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