Learning Forum

[Tiago98]

Hi, I'm an engineering student and I want to do an applied static analysis on a bicycle frame. The bicycle frame is defined as a wood composite (Medium density fiberboard E= 3.59 GPa v=0.25 and tensile stress= 16 MPa),

Some aluminium components are also included in the simulation to reinforce the areas of greater efforts.

All contacts between the different components were established as bounded.

My question is related to the viability of the results, is it normal to get a reduced stress distribution across the frame?

Are the results justified due to the use of a material with a reduced modulus of elasticity?

If anyone can help me, I would appreciate it?

[1shan]

Its hard to say whether the results are viable or not without any other data to compare with. But what you can do is try minimizing the errors and create a model which is as close as possible to reality. From the above picture it looks like only certain areas close to supports are experiencing very high stresses, while the mainframe is almost stress free which doesn't look very realistic. In your last post I recommended you to modify your support conditions according to https://www.youtube.com/watch?v=lWcAHI37hb8. Did you try that?
Regards Ishan.

[Tiago98]

Hello, firstly thank you for your answer .
Yes, I changed the supports for this type as shown in the figure, looks the same that the youtube video that you recommended to me. The results are the same and I think is because the material I choose for the structure is the Medium density fiberboard.