Curved Beam - VTU e-Learning

Bending stress at the outer fiber σbo = =
.
.
= 50.49N/mm 2 (compressive)
Combined stress at the inner fiber σri = σd + σbi = 2.16+42.64
= 44.8N/mm 2 (tensile)
Combined stress at the outer fiber σro = σd + σbo = 2.16 50.49
= 48.33N/mm 2 (compressive)
Maximum shear stress max = 0.5x σmax = 0.5x48.33
The below figure shows the stress distribution.
Combined stress =-48.33 N/mm
σ ro
2
Bending stress σbo=-50.49 N/mm
Direct stress ( σd) 2
b = 75 mm
2
= 24.165N/mm 2 , at the outer fiber
a 2
CA
225
NA
a =75mm
i
a 1
σ ri=44.8 N/mm 2
σ bi=42.64 N/mm 2
b = 300 mm
i
σ d=2.16 N/mm 2