Answer
$σ_{y} = 925.73 MPa$
Work Step by Step
Given:
steel alloy for spring application with modulus of resilience of at least 2.07 MPa
Required:
minimum yield strength
Solution:
Using Equation 6.14, with $E = 207 GPa$ from Table 6.1:
$σ_{y} = \sqrt 2U_{r}E = \sqrt (2)(2.07 MPa)(207 \times 10^{3} MPa )= 925.73 MPa$
