Question

Given the diving board shown below, calculate the magnitude (DON'T INCLUDE NEGATIVE SIGNIF ANY) of the strain energy in the beam in units of in-lbs if the girl weighs 120 lbs. Assume the girl is standing still and: E = 1.5 Mpsi LAB = 39 in LBC = 104 in b = 17 in h = 2.2 in Figure Minimize File Preview 0 - ZOOM + -LBC

Answer 1

b=17in Salh ) LAB = zgin. had. Din LBC = login, E= 1.5MPsi halb How How to for reaction reaction de ping I B LBC 'K LAB Calculation Ify so Ay + By = 120 - MA = 0 120x (LABI LBC) = Byx LAB By = 446 bbs Ay = - 3201 68 о тејп сhеnа ѕя хъл • LAB - slange de s er user (-320x) dx 2x1.5x106x I - 120x2 da 2x1.5006xI moment of inersia of beam I T xa x/2.2,3 – 15.085 int 104 (3032x3) (1926) 2x1.5x10x15-085 2x1.5x106x15.085 44.741 + 119.309 u= 164.05 lbiin storain energy of beam