00:01
Hello students, for load 1, w1, we can consider del 1 is equals to minus w1 divided by 6 ei into 2 into 3 a whole cube minus 3 into 3 a square into 2 a plus 2 a whole cube.
00:30
Here we can consider the del 1 value is equals to negative w1 divided by 6 ei into a 8 a cube.
00:43
Now load w2 del 2 is equals to negative del 1 divided by 6 ei into ei into 2 into 3 a whole cube minus 3 into 3 a square a plus a the whole cube.
01:12
From this we get del 2 is equals to negative w1 divided by 6 ei into 28 a cube.
01:24
Now we have to find out the total deflection.
01:27
We are going to add del 1 and del 2.
01:29
Del is equals to negative w1 divided by 6 ei into 8 a cube minus w1 6 ei into 28 a cube.
01:49
From this we get del is equals to 2 a cube divided by 3 ei into 2 w1 plus 7 w2.
02:04
We can consider this as equation 1.
02:06
Now we are going to use the principle of superposition to find maximum moment for that.
02:22
Moment maximum for 1 is equals to minus w1 into 3 a minus 2 a that gives us negative w1 a.
02:39
Moment maximum for second one is equals to negative w2 into 3 a minus a that gives us negative w2 2 a.
02:53
Now we are going to find out the maximum total maximum moment...