Repeat Prob. 633 ignoring curvature effects on the bending stress. Repeat Prob. 633, The torsional coupling in
Question:
Repeat Prob. 633, The torsional coupling in the figure is composed of a curved beam of square cross section that is welded to an input shaft and output plate. A torque is applied to the shaft and cycles from zero to T. The cross section of the beam has dimensions of 3/16 à 3/16 in, and the centroidal axis of the beam describes a curve of the form r = 0.75 + 0.4375 θ/Ï, where r and θ are in inches and radians, respectively (0 ¤ θ ¤ 4Ï). The curved beam has a machined surface with yield and ultimate strength values of 60 and 110 kpsi, respectively.
(a) Determine the maximum allowable value of T such that the coupling will have an infinite life with a factor of safety, n = 3, using the modified Goodman criterion.
(b) Repeat part (a) using the Gerber criterion.
(c) Using T found in part (b), determine the factor of safety guarding againstyield.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Shigleys Mechanical Engineering Design
ISBN: 978-1121345317
9th edition
Authors: Richard G. Budynas, J. Keith Nisbett
Question Posted: