Stresselementcontainsonly shearstresses

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Unformatted text preview: nal Deformation ► ► Consider only circular bars where plane sections remain plane. Stress element contains only shear stresses. Derivation of Torsional Deformation Derivation of Torsional Deformation ► Consider a solid circular bar fixed at one end and subject to pure torsion loading. ► Shear Strain is proportional to the angle of twist, Φ, and the distance, ρ, from the centre of the circle. Derivation of Torsional Deformation Derivation of Torsional Deformation ► dφ With constant we can also dx write, AA’ = Lγ= ρΦ γ = shearing strain shearing strain φ = twist angle of the cross section twist angle of the cross section ρφ γ= L ► (1) (1) Maximum shear occurs at Maximum outer surface of shaft (ρ...
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