Problem 1: Bolts under eccentric shear A vertical channel has a cantilever beam bolted on it as shown (all dimensions in

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Problem 1 Bolts Under Eccentric Shear A Vertical Channel Has A Cantilever Beam Bolted On It As Shown All Dimensions In 1 (160.17 KiB) Viewed 75 times

Problem 1: Bolts under eccentric shear A vertical channel has a cantilever beam bolted on it as shown (all dimensions in mm). The channel is made of AISI 1006 HR steel. The channel width is w = 152 mm and channel thickness is t = 6.4 mm. The cantilever beam is made of AISI 1015 HR steel. All bolts are M10x1.5 ISO 5.8. The bolt threads do not extend into the joint. Use the following material properties. 1006 HR steel: Sy = 170 MPa 1015 HR steel: Sy = 190 MPa Bolt-Class ISO 5.8: Sy = 420 MPa = 12 50 |--50--<50—261 125 I Find the factors of safety for F = 5 kN for the following modes of failure: (a) Shear of bolt (b) Bearing stress on bolt (c) Bearing stress on channel (d) Bearing stress on the cantilever (e) Bending stresses on the cantilever (use section at B) (f) Which of the three bolts (O or A or B) will fail first according to your analysis? (g) If the direction of the applied force is reversed (pointing upwards), should it change your answer for part (e)? Final Answers: (a) 1.63 (b) 2.3 (c) 0.93 (d) 1.95 (e) 18 = 1.24(105)mm*, Mg = 151 x F kN- mm, n= 1.25 (f) B (g) Nope = =