Verification of bending calculation

Simulation Generality
1

Hello

I did a bending calculation, but not at all used to these calculations, I would like a little check.

The data:

Ø14 stainless steel 316 bar mounted on the wall

10.5kg load at 270mm from the wall

 

I find a flex of 17.5mm.

 

Thank you

S.B


flexion.jpg
2

Hello

 

Can this site help you?

http://jean.lamaison.free.fr/flexion.html

 

1 Like
3

Hello

Using RDM6 (not the most modern but effective!), I find a result of 1.827mm.

Taking a step back, 17mm is still a lot for a Ø14mm stainless steel bar with such a load!


flexion-sb.txt
8 Likes
4

Agree with Benoit.LF, with SOLIDWORKS Simulation, I'm at 1.89mm


flexion.png
4 Likes
5

Hello

 

If we take the formula, the arrow is delta= FL^3/3*E*I

With in your case if we put everything in mm and therefore MPa for E:

F= 105 N , L=270 mm , E = 210,000 MPa (approx.) and

I moment of inertia for a cylindrical rod I= Pixd^4/64  and d= 14 mm

With the calculation we find delta = 1.74 mm

 

3 Likes
6

Thank you gentlemen,

I knew I had to get my result checked.

I'll restart my simulate when I have time to look for where I crashed.

 

S.B

1 Like
7

Hi @ s.b

you probably have a conversion error

A zero too many somewhere

Maybe the Newton / Kilo conversion?

http://fr.converworld.net/poids/newton-kilo/

@+ ;-)

1 Like
8

@gt22,

So far, so good. :)

I need to look at the data in the software at the level of matter or default units in the software.

1 Like