Appreciate the strain life data countryman as well as the help you have given me.
I did try adding some gussets on the bottom most portion of the flange as well as one of the sides. Unfortunately it didn't help much :/ and clearance in the areas where I can add gussets is very tight.
One thing...
Hey Countryman thanks for the reply.
Even though Fusion 360 Static Stress does use Nastran behind the scenes I unfortunately don't have access to all of those different element types you are talking about.
Your last sentence about modeling the fastener in the 3D got me curious. I decided to...
Continuing to play around with things...
Now that I have a better understanding on how to analyze these stress concentrations I wanted to do some experimenting.
I wanted to be able to make the fillet where I am having those stress concentrations larger. Unfortunately due to the size of the...
OK. A lot of this is starting to make a lot more sense... so let me recap in my own words to make sure I am on the right page.
When analyzing local stress concentrations we must do the following:
1. Perform a linear analysis on the piece
2. Make sure that our simulation is converging so that...
Here you can also see my constraints causing some issues. This IMO is totally safe to ignore. Thats clearly being caused by the split face that is constrained (to represent the bolt head).
Any suggestions on how to better constrain this? Presumably without modeling bolting this piece to a plate...
OK... So I ran a non-linear analysis and the results are pretty interesting.
I still have stresses in the same spot, but the magnitude is quite smaller. I am now seeing around the 480-530 MPA range (which is barely above yield), where before they were 860 MPA... [surprise]
Here is how I setup...
@nlgyro
Thanks for the response. I am going to do some further research on neuber correction. It seems to me this is an alternative to doing a full blown non-linear analysis.
@rb1957
Correct this is a FEA package inside of my CAD environment. Autodesk Fusion 360 has an integrated simulation...
F360 by default is second order tetrahedrons.
Continuing to play around with it tonight... I decided to try all of the different permutations of simplifying the BC's and loads.
I am using adaptive mesh refinement and making sure that the results from all of my simulations converge as to make...
Sorry it is a linear static stress.
Sure.
I am simulating a redesigned transfer case for an AWD vehicle. Its contain a ring and pinon gear set. Its a two piece design, but I am simulating that case plate as bonded. I have done the bolt calcs by hand and also have tried sims constraining the...
Correct. A static linear analysis. Completely forgot to state that and have updated the title and description.
Appreciate your response. 3 makes a lot of sense to me as well and I'm glad I could get another opinion.
I do want to make a note that my FEA simulation is using loads seen at...
Hi all,
I am posting in hope of someone helping me analyze a high stress that I am seeing on a fillet in my FEA simulation.
For reference I am using Fusion 360 and running a static linear analysis. Everything else in my simulation is perfect except for this one fillet.
I am simulating with...
Hi R.Efendy,
Thank you for the response.
I must've missed that FrA and FrB were in different directions. The numbers make sense now.
So... I've done more reading and research on the gear tooth forces and I believe that those are being calculated right.
I am basically going to proceed now...
Hi everyone!
I have a computer science background (this is my first big personal ME project)... so don't be too harsh on me heh. [tongue]
I have a hypoid spiral bevel gear set that I am designing a new case for. The original case is very cheap cast aluminum that breaks very easily. This piece...
