Answer:
The spring is solid safe since calculated Ns > given Ns
Explanation:
Given data :
Wire diameter (∝)= 0.148 in
outside coil diameter(OD) = 2.12 in
free length (lo) = 2.5 in
Total coil ( Nt ) = 5.75
material = A227 Hard-drawn steel
attached below is the remaining part of the detailed solution
From Table
A = 140 kpsi.i[tex]n^{m}[/tex], m = 0.190
Sut = A / [tex]d^{m}[/tex]
since given Ns = 1.2 < 1.36 (calculated Ns) hence the spring is solid safe
