At a point on the free surface of a machine part, the strains are Ex=+1200 mu, Ey=+300mu, Yxy=+700 mu. Use Mohr's circle to determine:
a. What are the in plane principle strains and show on a sketch their orientation to the x-y axis.
b. What is the out of plane strain?
c. What is the maxium shearing strain?
d. If a strain gauge was also mounted as shown in the figure below, what reading would be measured?
e. What are the principal stresses? Assume that E= 200 GPA and v=0.3.