# Question Solved1 AnswerQ1. (30 P) A steel shaft with an outside diameter of 20 mm is supported in bearings at its ends. Two pulleys are keyed to the shaft, and the pulleys carry belt tensions as shown. The yield strength of the steel is Sy=440 MPa. Determine the factors of safety predicted at points H and K by the maximum-shear-stress theory and by the maximum-distortion-energy theory. Ignore the shear stresses caused by the shear forces. (Note: Draw FBD, V and M diagrams and show all your calculations). 1400 N 200 N 90 y mm 160 mm 160 mm 160 mm 160 mm K D 1100 N 135 mm X 300 N

YTUVO2 The Asker · Mechanical Engineering

Transcribed Image Text: Q1. (30 P) A steel shaft with an outside diameter of 20 mm is supported in bearings at its ends. Two pulleys are keyed to the shaft, and the pulleys carry belt tensions as shown. The yield strength of the steel is Sy=440 MPa. Determine the factors of safety predicted at points H and K by the maximum-shear-stress theory and by the maximum-distortion-energy theory. Ignore the shear stresses caused by the shear forces. (Note: Draw FBD, V and M diagrams and show all your calculations). 1400 N 200 N 90 y mm 160 mm 160 mm 160 mm 160 mm K D 1100 N 135 mm X 300 N
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Transcribed Image Text: Q1. (30 P) A steel shaft with an outside diameter of 20 mm is supported in bearings at its ends. Two pulleys are keyed to the shaft, and the pulleys carry belt tensions as shown. The yield strength of the steel is Sy=440 MPa. Determine the factors of safety predicted at points H and K by the maximum-shear-stress theory and by the maximum-distortion-energy theory. Ignore the shear stresses caused by the shear forces. (Note: Draw FBD, V and M diagrams and show all your calculations). 1400 N 200 N 90 y mm 160 mm 160 mm 160 mm 160 mm K D 1100 N 135 mm X 300 N