Question

Part 3 Mechanical Springs A helcal compression spring is made from music wire that is 0 041 inches in diameter and has a mean coil diameter of 0.50 inches with a free length of 2.0 inches and 10 total coils with plain ends Problem 9 What is the solid length L A) 0.32 inch 8)0.25 inch 041 inch D) 0.45 inch E) 0.53 inch Problem 10 What is the spring rate k? A) 5.50 bfn 8) 3.25 lb/in g2.95 lb/in D) 4.44 lbf/in E) 195 lbf/in Scanned with CamScanner Problem 11 What is the maximum shear stress, , in the wire when the spring is compressed 1 inch from ts free length? 045.200 ps D) 89,400 ps 66.600 ps B) 78,700 p A) 3900 ps Problem 12 What is the safety factor against yielding at a compression of 1 inch? E) 18 A) 1.2 D) 24 8) 3.4 c) 2.7

solve P11 and P12 based on

Answer 1

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