00:01
Hello everyone, let's look at the question.
00:01
So in this question, we are taking the principal stresses in principal direction which will be sigma x z x y z x z z y x sigma y and z y z z z x z z y and sigma z.
00:29
Okay, this will be 210 120 002.
00:39
Okay, so first stress at interval one will be sigma x plus sigma y plus sigma z, which is equal to 2 plus 2 plus 2, which is equal to 6 mega pascal.
00:54
Okay.
00:56
Now the second stress i2 is equal to sigma x sigma y minus z x y square plus sigma y sigma z minus z x y square z y z square plus sigma x sigma z minus z x z square.
01:30
Okay, so i2 will be 2 into 2 minus of 1 square plus 2 into 2 minus of 0 square plus 2 into 2 minus of 0 square.
01:46
So i2 will be 11 mega pascal.
01:50
Okay, and i3 is equal to 210 120 002.
01:58
So i3 is equal to 2 into 4 minus 0 minus 1 2 minus 0 plus 0 0 minus 0...