Question 1
An element of the truss-bridge gusset plate is in plane stress. On planes oriented at counterclockwise angles \theta =42\deg and \theta =67\deg from the x-axis, the normal stress is 70 MPa in compression. Given \sigma x=+88MPa (tension), determine \sigma y and Txy.
[10]
' ' gunc - 1 1916 au eas evensent