Central spring gap
A rigid plate of negligible mass rests on a spring system consisting of five vertical springs, four identical outer springs in a square formation and another spring at their center. The central spring is 5 mm shorter than the outer springs.
Each of the outer springs consists of 25 turns of 20 mm wire on a mean diameter of 40 mm. The central spring has 30 turns of 15-mm wire on a mean diameter of 35 mm.
A load P = 40 kN is now applied to the plate. If G = 83 GPa, determine:
Load carried by the central spring (kN)
Load carried by each of the outer springs (kN)
Maximum shearing stress of the central spring (MPa)
Maximum shearing stress of a single outer spring (MPa)
Total deformation of the central spring (mm)
Total deformation of the outer spring (mm)
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Find the stress in central spring and plate displacement
Two concentric springs, the central spring being 5 mm shorter than the outer spring, are
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coiled on a mean diameter of 100 mm. The central spring, on the other hand, has 80
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Question 35
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Question 35
300 mm 18 in 4.5 ft 60 mm 40 mm Fig. P2.33 2.34 For the composite block shown in Prob. 2.33, determine (a) the value of h if the portion of the load carried by the aluminum plates is half the portion of the load carried by the brass core, (b) the total load if the stress in the brass is 80 MPa Fig. P2.35 2.35 The 4.5-ft concrete post is reinforced with six steel bars, each with...
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