An open-coiled helical spring consists of 12 coils, each of mean diameter 60 mm, wire diameter 6 mm and helix angle 25°. An axial load of 120 N is applied to the spring. Calculate (a) axial de- flection, (b) bending and shearing stresses, and (c) axial torque which shall produce a bending stress of 50 MPa in the coils. Take E 200 MPa, and G = 84 GPa.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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An open-coiled helical spring consists of 12 coils,
each of mean diameter 60 mm, wire diameter 6 mm and helix angle 25°.
An axial load of 120 N is applied to the spring. Calculate (a) axial de-
flection, (b) bending and shearing stresses, and (c) axial torque which
shall produce a bending stress of 50 MPa in the coils. Take E = 200
MPa, and G = 84 GPa.
Transcribed Image Text:An open-coiled helical spring consists of 12 coils, each of mean diameter 60 mm, wire diameter 6 mm and helix angle 25°. An axial load of 120 N is applied to the spring. Calculate (a) axial de- flection, (b) bending and shearing stresses, and (c) axial torque which shall produce a bending stress of 50 MPa in the coils. Take E = 200 MPa, and G = 84 GPa.
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