I have a problema and i dont know how to solve
I am trying to simulate a object but I need to provide similar things on 3 point bend (bending) test
So i dont know how to do it and I need your help
PLEASE HELP ME !!!
Maybe upload/post some screen shots here to show what you want to get/know.
yeah of course
so I have this object that has this dimensions 150 mm x 50 mm x 5 mm and i need to test his flexibility of the material
And to do that , it requires a bending test or bend test but I dont know how to do it ...
this is the object that I need to test and do a bend test
I assume the 3 point bending test you refer to corresponds to this:
Depending on the goal of your simulation, you can either model the two supports on each side and the component applying the force, and add No-Penetration contacts. Else, you can simply simulate the plate.
At its simplest, your setup could look like this (image edited after Jim's reply below):
Yes you are correct
the model that I pretend create is the first one but I dont kow how to do it
I am thinkin create 3 cilinders to be 3 points each but then I dont know how to do the rest ….
Are you trying to simulate a linear elastic event (no permanent deformation)? Or do you need to perform a non-linear event where there will be some stress above the elastic limit of the material? Is the material isotropic?
Be careful with the BCs in Julien Boissat 's example above - it is over constrained and will give significantly erroneous values for stress, etc.
If you are trying to correlate with theory you may get better results if you simplify your plate using beam elements with the appropriate Moment of Inertia. You may also want to compare solid elements vs. plate elements.
EDIT: Julien's updated BC image shows better practice and will give more reliable results.
yeah , I need a non - linear because the material and all the internal strututre is isotropic
thats why I need the 3 point bending test
this test also alowds me to see if the 3 point bending teste simulation in Solidworks has values almost equal or not to a real bending test
please help me
Maybe you can use quarter symmetry and do something like this:
See model in attachment
yeah its a good idea but needs to look that image that was showed
so … the document that you send is good but i need to be like this … so I think i need to put another semi.cylinder on the bottom as you put (but you put one and I need two) and other like you did but in the center like the picture
can you show me how to do it this way please?
Using symmetry when applicable is widely accepted. Maybe you have specific reason to reject using symmetry?
The model I attached is the full mode with a Split feature to obtain a quarter symmetry. If you want, you can suppress "Split1" to obtain the full model.
Then, you can set it up in the nonlinear study as a full model.
I dont know how to do the definitions to work because I only need that object rectangular bend but i dont know how to do it
i tried diferente times but it doenst work
How I can put this working???
Simao Manuel wrote: I dont know how to do the definitions to work because I only need that object rectangular bend but i dont know how to do iti tried diferente times but it doenst work How I can put this working??? thanks
Simao Manuel wrote:
What are those BCs (green elements/arrows) in the center doing? Why are you restraining what should be your 'input'? (Can't really tell due to the size of the image.)
If you did add an infil(?) pattern, I presume like a honeycomb, then you most definitely do NOT have an isotropic material. This is especially true if you made your actual part using a 3D printer. If such is the case and you are trying to find more detail then it is probably a given that you use symmetry as Julien suggested.
To try to reduce the size of your model try copying the entire thing but do NOT copy results then use pack-and-go on the newly created model. It should not be that big.
i have a question
when I do the simulation _ static
what material I put on the cylinders?? because on the object I will put ABS plastics
Simao Manuel if your sample material is ABS then you are unlikely to get good results with linear-elastic assumptions since in a real test your deflections would not meet the linear requirements. You may have 'bitten off more than you can chew' for a first try at FEA.
If your material is isotropic or not does not mean you need non-linear analysis. The stress and deflection define that for the most part. 3-point test can be done in linear or, if going past a failure mode, non-linear. Julien is correct with his 1/4 symmetry but you might also use 1/2. Still, pay attention to your b/c as those impact accuracy and precision.
Are you a student just trying this out? Have you taken a solid mechanics course?
i am almost a material engineer
this is for my thesis and I have a really dificulty to do the test
I am seeing some videos on youtube but I cant have the some graphics or animation of deformation
the vídeos that I have been watching are:
SOLIDWORKS Simulation - Nonlinear - YouTube
Bending Nonlinear 2D Stress Analysis in Solidworks | Bending by V-die and Wiping die - YouTube
SOLIDWORKS Simulation - 2D Simplification - August 2016 - YouTube
Can you Attach your file(s) here?
Can you ask you instructor/advisor to join this discussion?
the file is very large
almost 1 gb (880 mb)
but send me your email
It does not make sense that the file is that large.
Need only the *.sldprt and *.sldasm files, not the analysis files.
The file is that big because I add a infill pattern inside the object that I want to deform /bend
if you cant believe it , send your e-mail and i Will show you
my advisor has also dificult to solve this problem
this kind of simulation is not very common to do it in my college
there some pictures of failure
I am trying to do it like the vídeos but it doenst work
it was supposed to bend but doenst bend … and its ABS and the others body are aloy steel
PLEASE HELP ME!
wow i didn´t know that ahaha
I will run the teste and see if does work
thanks so much
if i get any question I will send from here
Simao Manuel wrote: I add a infill pattern inside the object...
I add a infill pattern inside the object...
It is best to include all relevant information in original post rather than bit-by-bit.
Has your advisor given your a problem statement sheet that defines the entire problem?
Try this (used to work, not sure now).
Drag the roll-up bar to the top of the feature tree hiding all features.
Save the file in this rolled up state.
Is it much smaller?
If so, I can then drag the roll-up bar back down on my end.
Create a solid cube with Merge Result, consuming the geometry and leaving only 6 faces. (I will then delete the last feature on my end.
Retrieving data ...