= 3. (15 pts.) For a 3D stress state of ox= 30 MPa, 0, = 10 MPa, o = 25 MPa, and Ixy = -10 MPa, a) Draw the 2D Mohr's ci

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3 15 Pts For A 3d Stress State Of Ox 30 Mpa 0 10 Mpa O 25 Mpa And Ixy 10 Mpa A Draw The 2d Mohr S Ci 1 (41.41 KiB) Viewed 14 times

= 3. (15 pts.) For a 3D stress state of ox= 30 MPa, 0, = 10 MPa, o = 25 MPa, and Ixy = -10 MPa, a) Draw the 2D Mohr's circles on the attached graph paper. b) Determine the 2D principal stresses. c) Find the angle of the principal direction, Op, with respect to the x-y plane. d) Draw the 2D principal stress element for the x-y plane properly oriented. e) What are the 3D principle stresses 01, 02,03? 6 - sin 20+1, (cos 20) 2 - 2 X R= = + Tžy 2 toy X Oavg =(***) 2