11.4 (A/B). Compare the strain energies of two bars of the same material and length and carrying the same gradually applied compressive load if one is 25 mm diameter throughout and the other is turned down to 20 mm diameter over half its length, the remainder being 25 mm diameter. If both bars are subjected to pure torsion only, compare the torsional strain energies stored if the shear stress in both bars is limited to 75 MN/m². [0.78, 2.22.]

11.4 (A/B). Compare the strain energies of two bars of the same material and length and carrying the same gradually applied compressive load if one is 25 mm diameter throughout and the other is turned down to 20 mm diameter over half its length, the remainder being 25 mm diameter. If both bars are subjected to pure torsion only, compare the torsional strain energies stored if the shear stress in both bars is limited to 75 MN/m². [0.78, 2.22.]

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter9: Time, Temperature, And Mechanical Properties

Section: Chapter Questions

Problem 9.3P

See similar textbooks

Similar questions

The stresses shown act at a point in a stressed body. Normal and shear stress magnitudes acting on horizontal and vertical planes at the point are Sx = 17 MPa, Sy = 29 MPa, and Sxy = 26 MPa. Assume β=tan^−1(b/a)=23.2∘, a = 7, and b = 3. Using the equilibrium equation approach, determine the normal and shear stresses σ (positive if tensile, negative if compressive) and ττ (magnitude only) at this point on the inclined plane shown.
Assume that a punch having a diameter of 20mm is used to punch a hole10mm thick plate. If a force P = 120KN is required to create the hole, what is the average shear stress in the plate and the average compressive stress in the punch?
The stresses shown act at a point on the free surface of a machine component. Normal and shear stress magnitudes acting on horizontal and vertical planes at the point are Sx = 22 ksi, Sy = 1.5 ksi, and Sxy = 5.2 ksi. Assume β=21∘. Determine the normal stresses σx and σy and the shear stress τxy at the point.
Q) If the failure of shearing stress in a steel plate is 2,300KN, determine (a) the force required to punch a 32 mm diameter hole in a 10mm thick plate and, (b) the corresponding normal stress ina punch.
A plate 0.035mm distant from a fixed plate, moves at 80 cm/s and shear stress is 2 N/m2 to maintain this speed. Determine the fluid viscosity between the plates.
5 decimal places 1. At the proportional limit, a certain material has a stress of 78 MPa as the strain is 0.0004. What is the modulus of elasticity of the material in GPa? 2. A 7-ft diameter spherical tank is subjected to an internal pressure of 24 psf. If the wall thickness is 0.35", determine the tangential stress of the wall in psi. A spherical pressure vessel of 5.7 meter diameter is subjected to an internal pressure of 5.0 MPa. Determine the tangential stress (MPa) developed in the wall of the vessel if the thickness is 4 mm.
What is the shear stress acting on the inside surface and outside surface of a hollow shaft subjected to a torque of 1000 Nm?(The inner and outer diameter of the shaft is 125 mm and 150 mm respectively.) Report the answer in the Mpa
The extruded plastic shape has dimensions of D = 21 mm. d = 17 mm. a = 87 mm, and t = 7 mm. (a) Determine the magnitude of the horizontal shear stress at point A for a shear force of V = 360 N. (b) If the allowable shear stress for the plastic material is 1050 kPa, what is the magnitude of the maximum shear force V that can be applied to the extrusion?
Q) If the failure of shearing stress in a steel plate is 2,300KN, determine (a) the force required to punch a 32 mm diameter hole in a 10mm thick plate and, (b) the corresponding normal stress ina punch. Explain it correctly
Due to loading, the plate is deformed into the dashed shape shown in the figure. Assume a = 39 in., b= 33 in., δ1= 0.1625 in., δ2= 0.1 in. Determine the average normal strain along the side AB?in micro rad And answer in right and clear way Determine the average shear strain in the plate at A relative to the horizontal and vertical axes?
Q) If the failure of shearing stress in a steel plate is 2,300KN, determine (a) the force required to punch a 32 mm diameter hole in a 10mm thick plate and, (b) the corresponding normal stress ina punch. Solve it early
Refer to the figure 1. Which of the following most nearly gives the value of the major principal stress? Answer: 216 kPA 2. Which of the following most nearly gives the value of the normal stress on the plane AB? Answer: 174.64 kPa 3. Which of the following gives the value of the shear stress on the plane AB? Answer: 54.64 kPA