What Is the Force Threshold for Beam Bending?

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barvas11
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Hi Guys,
Do you know of any short formula to calculate bending moment of the beam on the attached image?
I need to know the force at which this beam will start bending.
 

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The beam will start bending as soon as the force is more than zero.

You're going to have to be more specific if you want more feedback. Have you looked into how beam bending calculatinos are done?
 
I know that the beam will deflect but it will flex back up to the certain point. I am trying to determine the force at which the beam will bend and deform.

I have managed to calculate the section modulus Z that is 9.48
 

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