, find the torsional stiffness of the shaft ?
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- Compare the engineering and true secant elastic moduli for the natural rubber in Example Problem 6.2 at an engineering strain of 6.0. Assume that the deformation is all elastic.A flat bar with a cross section of 8 mm by 50 mm elongates 2.1 mm in a length of 1.5 m as a result of an axial load of 50 kN. The proportional limit of the material is 240000 KN/sq m. Determine the axial stress in the bar and the modulus of elasticitymechanics deformable bodies 1. A hollow steel shaft has an outside diameter of 220 mm and an inside diameter of 200 mm. Which of the following nearly gives the torque in kN-m that will cause stress of 75.5 MPa in the shaft?
- A steel pipe having a length of 2 m, an outside diameter of 0.25 m and a wall thickness of 16 mm, is subjected to an axial compression of 200 KN. Assuming a modulus of elasticity of 200GPa and a Poisson’s ratio of 0.27, find the shortening of the pipe.A 42 meter solid shaft is under torsional loading 53 Nm. If in this application, the allowable shear stress for the material is 369 MPa. Calculate the required minimum diameter of the shaft: _____ mm ( input the value directly from your calculation before rounding it up to an engineering accepted diameter) Pay attention to units, and calculate your answer to one decimal place.Given a rectangular hollow box with outer dimensions 125mm x 85mm and constant thickness of 10mm has an ultimate stress of 415 MPa. Modulus of Elasticity of 110 GPa. a. Determine the bending moment M for which the factor of safety will be 2.50. b. Determine the corresponding radius of curvature of the section.
- A 50 m diameter solid metal bar is subjected to a compressive load of 178 kN. Transverse and longitudinal changes are measured with the use of electronic strain gages and the strains are determined to be 0.0012 longitudinally and 0.0004 transversely. A. Compute the Poisson's ratioB. Compute the modulus of elasticity C. Compute the modulus of rigidityA 3-m long steel plate having a cross-section of 25 mm x 300 mm is used as a hanger and subjected to a tensile load of 1070 kN. Poisson’s Ratio = 0.25 and E = 200 000 MPa. Compute the lateral strain. Express your answers in 6 decimal places.A column supports a compressive load of 250 KN. Determine the outside diameter of column if inside diameter is 185 mm and compressive stress of 50 MPa.
- a tubular steel strut of length 1.2 m , inner diameter 100mm and outer diameter 180mm carries a compressive load of 3.5 MN. If poissons ratio for the material is 0.33 and the modulus of elasticity is 214 E GPA . determine the change of length and outer diameter of the column.A 1.5m solid shaft with a diameter of 30mm is twisted to a 45MPa subjected stress. Assuming that the modulus of rigidity is 83Gpa, what is the total angular deformation?A solid shaft is fixed on one end, and the other end is subjected to torque T as shown. The allowable shear stress is tmax, for which the required smallest diameter is d. If the torque increases to 2T, what is the new required smallest diameter?