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Two Point Loads at One Third Points on a Simple Beam 
First,is the beam strong enough that it doesn't fail by the fibers on the bottom being torn apart, a fiber failure. Second, is the beam stiff enough that there will not be excessive deflection. A bouncy floor, cracked tile or plaster would be examples of this. Third, is the beam strong enough that its fibers don't slip past one another, bend a magazine and watch the pages slide past one another. This is a horizontal shear failure. These calculators are math formulas from engineering texts written into Javascript. No representation is made as to whether they are correct or that they are correct for your situation. They are for educational use only. The user assumes all risk from their use of this program. |