a) In the composite spring shown, Spring 1 has a mean coil diameter of 36 mm and a wire diameter of 3mm. Determine the wire diameter of spring 2 if it has a mean coil diameter of 24mm and the maximum shear stress in the two springs is to be the same.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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3.
a) In the composite spring shown, Spring 1 has a mean coil diameter of 36 mm
and a wire diameter of 3mm. Determine the wire diameter of spring 2 if it has
a mean coil diameter of 24mm and the maximum shear stress in the two springs
is to be the same.
20.25N
B
Spring 2
Spring 1
b) If G=80 GPa and points A and B moved through 14mm and 19,94mm
respectively determine:
i. the number of coils in each spring
ii. the effective stiffness of the composite spring
Transcribed Image Text:3. a) In the composite spring shown, Spring 1 has a mean coil diameter of 36 mm and a wire diameter of 3mm. Determine the wire diameter of spring 2 if it has a mean coil diameter of 24mm and the maximum shear stress in the two springs is to be the same. 20.25N B Spring 2 Spring 1 b) If G=80 GPa and points A and B moved through 14mm and 19,94mm respectively determine: i. the number of coils in each spring ii. the effective stiffness of the composite spring
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