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Calculate the modulus of rupture

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Reference no: EM13906551

If a break load of 250 lbs. is applied to the first wood specimen, how do I determine the Moment of Inertia and calculate the Modulus of Rupture?

The only difference between the specimens per the attached diagram is that a 1/4" x 1/4" key-way is cut into the center of the 2nd specimen.

This is a simply supported beam analysis but how do I calculate what I need and determine the difference in break load between the two?

Attachment:- bk.xls

Reference no: EM13906551

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