1.Using the stress transformation equations only,given a stress state where sigma x=105 MPa,sigma y=75 MPa and tau xy=25 MPa, determine the stresses acting on an element oriented at an angle 40 degrees from the x axis.
2.An element in plane stress is subjected to stresses sigma x=27 MPA,sigma y=14 MPA,sigma xy=6MPA.Using mohr's circle,determine the stresses acting on an element oriented at an angle 40 degrees from the x axis.