ME85-Lecture31

ME85-Lecture31 - RR Week Schedule Example: Mohrs Circle for...

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Unformatted text preview: RR Week Schedule Example: Mohrs Circle for Plane Stress Mohrs circle for centric axial loading: Mohrs circle for torsional loading: J Tc xy y x = = = = = = xy y x J Tc , = = = xy y x A P A P xy y x 2 = = = Example 14.2 For the state of plane stress shown, (a) construct Mohrs circle, determine (b) the principal planes, (c) the principal stresses, (d) the maximum shearing stress and the corresponding normal stress. SOLUTION: Construction of Mohrs circle ( ) ( ) ( ) ( ) MPa 50 40 30 MPa 40 MPa 30 20 50 MPa 20 2 10 50 2 2 2 = + = = = = = = + = + = CX R FX CF y x ave Example 14.2 Principal planes and stresses 50 20 max + = + = = CA OC OA MPa 70 max = 50 20 min = = = BC OC OB MPa 30 min = = = = 1 . 53 2 30 40 2 tan p p CP FX = 6 . 26 p Example 14.2 Maximum shear stress + = 45 p s = 6 . 71 s R = max MPa 50 max = ave = MPa 20 = Sample Problem 14.2Sample Problem 14....
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ME85-Lecture31 - RR Week Schedule Example: Mohrs Circle for...

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