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# What is the equation for the maximum stress for a Beam in pure bending?

By Josh Mings on 31 Aug 16:57 7 answers 9382 views 2 comments

What is the simplest for m of this equation and how would you illustrate it best in SolidWorks/SolidWorks Simulation Express?

• almost 3 years ago

if you haven't any forces and conditions this questions would not acceptable.

• almost 3 years ago

u must attention to this point that maximum stress in pure bending occurs in maximum distance from neutral axis.so in maximum distance stress calculate as a following:
σmax = Mc/Ix
C=maximum distance from neutral axis

The maximum Stress is = M*c/Ix =Bending Moment x perpendicular distance to de bending axis / Second Moment of area about the neutral axis

I have a study i did on this sort of thing from my first year at university on my hard drive at home- i will upload my report when i get back from work and see if it helps.

the maximum will happen where M is the largest Most of the time its in one of the corners of the Beam.

• almost 3 years ago

The classic formula for determining the bending stress in a beam under simple bending is:
stress σ = My/Ix

where

σ is the bending stress
M - the moment about the neutral axis
y - the perpendicular distance to the neutral axis
Ix - the second moment of area about the neutral axis x

Actual beam loading cases and end conditions can be found from tables