A consolidated-drained (CD) triaxial test was conducted on a normally consolidated clay. The clay specimen was consolidated under a confining pressure of 276 kPa, after that it was sheared and failed at a deviator stress of 276 kPa. Please determine a. Angle of friction . b. Angle that the failure plane makes with the major principle plane. c. Find the normal stress o' and shear stress on the fialure plane. d. determine the effective normal stress o' on the plane of maxmum shear stress.

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Planar Stresses