3. The rigid bar AB is hinged at A and supported by a steel plate hanger. The hanger is fixed at C and bolted at D with two plates. Width of plate hanger Thickness of plate hanger Given: = 40 mm = 10...

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Extracted text: 3. The rigid bar AB is hinged at A and supported by a steel plate hanger. The hanger is fixed at C and bolted at D with two plates. Width of plate hanger Thickness of plate hanger Given: = 40 mm = 10 mm Bolt radius = 20 mm 2 m 1.2 m Allowable bolt shear stress = 68 MPa Allowable bolt bearing stress = 240 MPa w a. What is the allowable stress in the hanger based on bolt capacity in double shear at D. . b. If the maximum tensile stress in the hanger is 138MPA, find the allowable load W