# Question Solved1 AnswerA circular shaft is actued upon by a combination of loadings: an applied torque that produces a constant shear stress of 56 MPa, an axial force that produces a constant normal stress of 70 MPa, and a bending moment that produces a completely reversed normal stress of +140 MPa. Determine the factor-of-safety (n) using the Goodman theory for combined loading. The shaft is machined to a diameter of (2.5 cm) and has a keyway that results in a reduced stress concentration factor (Kf) equal to (1.15). The shaft operates at 100 °C. Also, the ultimate tensile strength (Sut) is 525 MPa.

YVX5LA The Asker · Mechanical Engineering

Transcribed Image Text: A circular shaft is actued upon by a combination of loadings: an applied torque that produces a constant shear stress of 56 MPa, an axial force that produces a constant normal stress of 70 MPa, and a bending moment that produces a completely reversed normal stress of +140 MPa. Determine the factor-of-safety (n) using the Goodman theory for combined loading. The shaft is machined to a diameter of (2.5 cm) and has a keyway that results in a reduced stress concentration factor (Kf) equal to (1.15). The shaft operates at 100 °C. Also, the ultimate tensile strength (Sut) is 525 MPa.
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Transcribed Image Text: A circular shaft is actued upon by a combination of loadings: an applied torque that produces a constant shear stress of 56 MPa, an axial force that produces a constant normal stress of 70 MPa, and a bending moment that produces a completely reversed normal stress of +140 MPa. Determine the factor-of-safety (n) using the Goodman theory for combined loading. The shaft is machined to a diameter of (2.5 cm) and has a keyway that results in a reduced stress concentration factor (Kf) equal to (1.15). The shaft operates at 100 °C. Also, the ultimate tensile strength (Sut) is 525 MPa.