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6. The components of stress within a structure are oxx 90 MPa, oxy -30 MPa, oxz = ayz = 0 50 MPa, oyy -60 MPa, ozz (4 poin Dr
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Given state of stress is as follows: Exx = 50 MPa, Gyy - 60MPa, 622=gOMPA, 6xy=-30MPa, 6, ste со160,30)30+ go to -30 30 20 do bo tot -got-b) Here, 30-(-30) 12 -60-50 - 60 110 > optant (1) >> Op = 75.695 Angle required to be rotated.150-1 -30 0 1 -30 -bord (30-a ) [15-21(-40-1) = 2.90 MPa . Also, (50-7) (Gott) & goo co = 10x +3000 2²+ goo so ->) + loa - 396 = 57.65MPa. op=75.695°. x 16=g0Mpa. 63=-67.65 MPa.

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