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Unformatted text preview: HNE m HW 3D Mohr’s Circle. (Handout) I=10MPH, Uy=20NIPa, 02: 1003/1133, TW=10W37 rﬂ=zn=0MPa Set up the coordinate as shown. (Let the shear stress on the Z plane be zero.) So 0', = 100M'Pa should be one principle stress, thus we only need to calcuiate the other
two principle stresses based on the stresses on xy plane. First draw the 2D Mohr’s circle to get the two unknown principle stresses, and then draw
the 3D Mohr’s circle as above. may 1‘» get
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the 3D Mohr’s circle as above. 1‘ V ‘2 ‘2“ 7.5 :2,“ " ““““““
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T ale/W / Set up the coordinate as shown, which 18 different from above 0 pro iem sllIet the
shear stress on the Z plane be zero.) 0',=10MP3, ay=100MPa, z=30MPa, rxy=10MPa, 1'” =7” ~0MPa
So a", = IOOMPa should be one principle stress, thus we only need to calculate the other
two principle stresses based on the stresses on xy plane. First draw the 2D Mohr‘s circle to get the two unknown principle stresses, and then draw
the 3D Mohr’s circle as above. 6w: 55M  55th :2 augm 3” ﬁg yrrnciplﬁ Si J’AFA sacre ~30, M. w /‘/ ...
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 Spring '06
 Keil

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