Inventor Analysis Help

[Anonymous]

Hi All,

I have to carry out some stress analysis on my inventor model however I am running into some issues.

I am currently modelling a simple bridge with restraints at the base of the piers and ends.

For this project I have to run some simple load scenarios on my model to get some results for my project write up.

Below is my bridge model and a simple pressure load across the 'deck' of the bridge:

https://imgur.com/a/cDqjN

My problem is I need to apply forces, and/or pressure loads across SPECIFIC areas of the bridge model - for example left hand lane/right hand lane traffic etc.

Is there anyone who knows how to implement this? - I have tried adding a sketch on the face however when I tried to add a load to it, it would not recognise the sketch

Any help would be appreciated - Many thanks!

kelly.young has embedded your image for clarity.

[swalton · Accepted solution]

Use the Split tool to create surface regions for FEA.

http://help.autodesk.com/view/INVNTOR/2018/ENU/?guid=GUID-72CA8251-F892-4DA1-9A5E-88FE3CB1257E

[TheCADWhisperer]

Do you pay tuition, (or your parents or taxpayers) for this class?

If you can't figure it out - attach your *.ipt file here.

[Anonymous]

Yes we pay tuition however this is a Final Year Project - I shouldn't have picked a project that involved learning a new software independently  

[TheCADWhisperer]

Well, since the paid instructor apparently cannot help with your problem - attach your file here along with your questions and you will get free professional help.

Can't beat that!

[Anonymous]

See attached ! @TheCADWhisperer

I will also experiment with the split tool to figure it out - @swalton Kudos to you 

I am trying to apply loads like seen below on various areas of the deck to simulate vehicles on the bridge: 

https://imgur.com/a/s8Z74

kelly.young has embedded your image for clarity.

[TheCADWhisperer]

Can you embed your Photos here rather than on 3rd party web sites (I am wary of malware)?

[TheCADWhisperer]

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@Anonymouswrote:

See attached ! @TheCADWhisperer

I will also experiment with the split tool to figure it out - @swalton Kudos to you 

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I do not see any Split Faces in the file that you attached?

Also, Concrete is not an isotropic material.

[Anonymous]

@TheCADWhisperer

So I did some splitting.. - See attached

Also this is what I was talking about: 

[Anonymous]

I need to carry out Finite Element Analysis - Stresses etc -

Does this mean I need to change the material props? My bridge is made up mostly of concrete/some reinforced concrete

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@TheCADWhispererwrote:

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@Anonymouswrote:

See attached ! @TheCADWhisperer

I will also experiment with the split tool to figure it out - @swalton Kudos to you 

---

I do not see any Split Faces in the file that you attached?

Also, Concrete is not an isotropic material.

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[TheCADWhisperer]

I see that you successfully split a face, but you will need to split with 4 rectangles to match your image.

And I do not see a load applied in the FEA environment of the file that you attached.

This step will not have any effect on your analysis - but I recommend that you right click on the View Cube and set this view to Top. 

[Anonymous]

@TheCADWhisperer - Thanks for this I am getting some results now.

My project title is Stress Analysis of 'XXXX' Bridge'  

Do you know anything about stress analysis? I am getting results from the different load cases - I just wanted to ask for some guidance - i.e what do you think I could talk about regarding the results - Different stresses/Von Mises/Mohrs Circle - What does it all mean & What do I talk about from the analysis?

You don't have to answer these Qs, they are just some thoughts of mine. 

Kudos!