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Question: problem 3 the astm a36 steel cantilever beam with youngs...

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Problem 3. The ASTM A36 steel cantilever beam (with Youngs modulus, E-200 GPa) with hollow rectangle cross-section (same as problem # 1) with length, L-120 1.5 mm, width B 50 0.50 mm, height H-70t 0.75 mm, wall thickness-t 10 + 0.50 mm, inner width - b 30+ 0.20 mm, inner height-h 50 t 0.25 mm, is loaded with the load, F 350 ± 3.5 N at the free end as shown in the figure in Problem # 1. (a) Find the maximum deflection at the free end with uncertainty. (15 points) FL3 Max deflection at free end, 8 or A-. 3EI (b) which variable contributes the most to the overall uncertainty? (5 points) (See the hint # 2 in problem # 1)
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