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Unformatted text preview: Maximum: Normal stress = Mc/I = 18000(1.5)/6.1172 = 4413.78 psi = 4.413 ksi Shear stress: Vmax= 900lb Q= .75(3)(.75+.75/2) + .75(.75)(.75/2) = 2.742in.^3 B= .75in. τ =VQ/(IB) = 900(2.742)/[6.1172(.75)] = 537.89 psi σ max @ 12in. from left τ max @ horizontal through centroid, and at x less than 12in. Beam strength vs Material strength Sy= Sys= .577Syn...
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- Spring '10
- Force, Shear strength, cr oss sect, ksi Shear stress