A square hollow bar having an outside dimension of 250 mm by 250 mm with 6 mm thick is to be replaced by a solid circular bar. a) Determine the required diameter of bar so that the maximum shear stress in the bar will not exceed the maximum shear stress in the tube. b) If the computed value of diameter in the previous question increase by 15%, what is the new shear stress of the circular bar? c) Determine the angle of twist in degrees of the tube if the length of the tube is 1m and the shear modulus is 80 GPa. Use T=14 kN-m.

Q: a) the shear strain yxy at point P. b) All stress components at point P.

A: modulus of elasticity(E) = 100 GPaPoisson's Ratio () = 0.3Reading of strain rosette ea…

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A: Internal pressure = P = .45MPa Diameter = d = 450mm Thickness = t = 10mm Side thickness = t' = 20mm

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A: Given data,

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A:

Q: For the stress block shown, what is OP2 if OP1 = 140 MPa (T)? A.60 MPa (T) 40 MPa B.60 MPa (C) C.20…

A: Calculations:σx=+120mpaσy=-40Mpaσ1=140mpagivenσ1=σx+σy2+σx-σy2+ζxy2140=120-402+120+4022+ζxy2140=40+8…

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A:

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Solid Mechanics

Engineering mechanics is a branch of science that deals with forces causing bulk motion in bodies and the effect that these forces cause on the bodies. Engineering mechanics does not deal with the internal changes that occur on account of these external forces. The internal effects in a body or a material under the action of external forces are studied in a new branch of science called solid mechanics, the strength of materials, or the mechanical behavior of engineering materials.