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Problem_14_12

# Problem_14_12 - := σ 2.918 10 8 × Pa = τ 2 T ⋅ π b 3...

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Problem 14.12 Shaft of Problem 14.4 subjected to M = 15 kN-m moment and T = 30 kN-m torque. With stress concentration factors from problem 14.4 find a) Max. Principal Stress b) Max. Shearing Stress c) Octahedral Shearing Stress Solution: Bending use Scale f, Curve 7 Torsion use Scale e, Curve 9 t 6 mm := ρ 2.2 mm := b 60 mm := b ρ 5.222 = t ρ 1.651 = Scc M 3.3 := Scc T 2.1 := M 15 kN m := T 30 kN m := σ 4 M π b 3 Scc M := σ 2.918
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Unformatted text preview: := σ 2.918 10 8 × Pa = τ 2 T ⋅ π b 3 ⋅ Scc T ⋅ := τ 1.857 10 8 × Pa = a) σ 1 σ 2 σ 2 ⎛ ⎝ ⎞ ⎠ 2 τ 2 + + := σ 2 σ 2 σ 2 ⎛ ⎝ ⎞ ⎠ 2 τ 2 + − := σ 1 382.031 MPa = σ 2 90.247 − MPa = σ 3 := b) τ max σ 1 σ 2 − 2 := τ max 236.139 MPa = c) τ oct 1 3 2 σ 2 ⋅ 6 τ 2 ⋅ + ⋅ := τ oct 204.706 MPa =...
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