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Question: unty12153 tringlematerials question a mountain bike rider going uphill applies...

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unty12153 TRINGİLEMATERIALS Question A mountain bike rider going uphill applies force P- 65 N to each end of the handlebars ABCD (see Figure Q4), made of alumiium alloy 7075-T6, by pulling on the handlebar extenders (DF on right handlebar segment). Consider thc nght half of the hлndlebar assembly only (assume the bars are fixed at the fork A). Segments AB and CD are prismatic with lengths Ly and Ls and with outer diameter and thickness dius ts and des, tos, respectively, as shown. Consider shear, torsion, and bending effects only for segment AD, assume DF is rigid a) Determine the maximum shear force, maximum torsioal moment and maximum bending moment experienced at pointA (6 marks) b) Find maximum tensile, compressive, and shear stresses at point A (10 marks) 2) Sketch the Mohrs Circle for stress element at point A with complete labels and orientation of (9 marks) principal stresses. Handlebar extensio do 315 i2s am #01 315 mm 295 mm F Handlebar extension d 100 .r 45° 13 z 220 mm L1 = 50 mm L2 30 min Handlebar (b) Section D-F Figure Q4 M V Total: 25 marks] This question paper consists of 4 questions on 5 printed pages

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