Bending moment calculation

Hi guys!

Is there any formula to calculate maximal bending moment for a boat (whit a certain ballast and a certain loading)?

thanks

 

If you want to determine the maximum bending moment may suffer a boat, all Classification Societies have formulas to determine. Just choose a CS and read its Regulations.
If what you want is to know the distribution of bending moments along the length in time, there is no formula. You have to determine the forces acting at each point (weight and buoyancy) and calculate the resulting moments about the reference point. You'll get a distribution curve of moments and you should check that the maximum value of that curve does not exceed the statutory maximum and, in addition, among other things, that the modulus at each section (or at least in the main section) is sufficient to support tension / compression on it.

 

OK THANKS ALOT tansl i see now