(10) A weight of 270kg falls a distance of 1.0m & strikes a coil compression spring which absorbs the blow with a deflection of 0.3m. The mean diameter of the coils is to be 8x the wire diameter. If the allowable stress is 415MPa & the modulus of rigidity is 80GPa, find the diameter of the wire & the number of effective coils required.

(10) A weight of 270kg falls a distance of 1.0m & strikes a coil compression spring which absorbs the blow with a deflection of 0.3m. The mean diameter of the coils is to be 8x the wire diameter. If the allowable stress is 415MPa & the modulus of rigidity is 80GPa, find the diameter of the wire & the number of effective coils required.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter3: Torsion

Section: Chapter Questions

Problem 3.7.8P: A tubular shaft being designed for use on a construction site must transmit 120 kW at 1,75 Hz, The...

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