- #1
pradi4u
- 5
- 0
Any one can help me solving this pleasezzzz
http://i49.tinypic.com/2vkm2r8.jpg"
My attempt
At A-B
There is No load so dM/dP= 0 and dU/dP= 0
At B-C
M = -px - wx.x/2
dM/dP= -x
dU/dP = Wx^4/8EI
At C-D
M = -Wb + Px
dM/dP = x
dM/dP = -Wbx^2/ 2EI
When i include all vaues to compute total starin energy, (AB+BC+CD)
it shows a value of 0+ 444.44-2222.22 = -1777.78
Strain energy = 1/2 x(load.)x (deflection)
= 1/2 x 2000 x deflection.
When i equate both valuse, i get deflection value of 1.78m which looks like very big value for a beam of 260mm long
http://i49.tinypic.com/2vkm2r8.jpg"
My attempt
At A-B
There is No load so dM/dP= 0 and dU/dP= 0
At B-C
M = -px - wx.x/2
dM/dP= -x
dU/dP = Wx^4/8EI
At C-D
M = -Wb + Px
dM/dP = x
dM/dP = -Wbx^2/ 2EI
When i include all vaues to compute total starin energy, (AB+BC+CD)
it shows a value of 0+ 444.44-2222.22 = -1777.78
Strain energy = 1/2 x(load.)x (deflection)
= 1/2 x 2000 x deflection.
When i equate both valuse, i get deflection value of 1.78m which looks like very big value for a beam of 260mm long
Last edited by a moderator: