|Apr25-07, 07:07 AM||#1|
Strength of Materials
1. The problem statement, all variables and given/known data
In the attachment
2. Relevant equations
3. The attempt at a solution
I have been solving this question for quite some time but I cant get the answer yet.
I offset all the forces to point C and I get the following values:
Moment at y-axis, M(y) = 10Nm
Moment at z-axis, M(z) = 48Nm
Stress at x-axis = -M(z) x (21mm) / I = -20MPa
Stress at z-axis = 0
Shear stress at xz plane = Tc/J
= (40Nm) (21mm) / J
By applying the following equations to get the principle strain,
tan(2theta)=2(Shear stress at xz plane) /(Stress at x-axis - Stress at z-axis)
I cant get the correct answer.
Can anyone help me? Thanks in advance.
|Apr25-07, 07:54 AM||#2|
Did you check your units?
|Apr25-07, 08:47 AM||#3|
Yes i did...Is my way of doing correct?
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