STRAIN GAUGE TECHNIQUE 2) A rectangular strain resette, when mounted on a structural member, produces the following strain indications with the application of load Ea Eb = -250 x 10 (450) and 640 x 106 (along the x-axis, 0), E = 310 x 10 (along the y-axis, 90) Assume E = 200 GPa, v=0.3. The resulting principal stresses are: 1) 425 MPa 40 MPa 2) 214 MPa 13 MPa 3) 251 MPa 22 MPa 4) None of the above answers 1 3