maximum deflection / slope of beam

Jun 2014
306
0
For part a ) , my ans is EI(d2y/dx2) = - Px

For part b) , my ans is EI(dy/dx) = -P(x^2)/2 +c1 EIy = -P(x^3)/6 +c1x +c2

at x= 0 , y = 0 , so c2 = 0 , at x = 0 , dy/dx = 0 , so c1 = 0 ,

so , EIy = -P(x^3)/6 , so , EIy max occur at L=3 , so EIy max = -10(3^3) / 6 = -45 , but the ans is EIy max =-46.67 , which part of my working is wrong ??

for slope at x = 2 , my ans is EI(dy/dx) = -P(x^2)/2 = EI(dy/dx) = -10(2^2)/2 = -40/EI
 

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