Required Information

Problem $06\mathrm{.}029-$ A latching spring

The figure is a drawing of a $4-$ by $\backslash (20-\backslash$mathrm$\{$mm$\}\backslash )$ latching spring. A preload is obtained during assembly by shimming under the bolts to obtain an estimated initial deflection of $2$ mm $.$ The latching operation itself requires an additional deflection of exactly $4$ mm $.$ The material is ground high$-$carbon steel, bent and then hardened and tempered to a minimum hardness of $490$ Bhn $.$ The inner radius of the bend is $4$ mm $.$

Problem $06\mathrm{.}029.$b $-$ Determine the values of the curved beam

For curved beam analysis, several parameters are required to determine the value of stress at the inner and outer fibers of the part.

Determine the values of each of the following: $($Round all the final answers to three decimal places.$)$

The value of $\backslash ($ r$\_\{$n$\}\backslash )$ is $\backslash (\backslash$quad $\backslash$mathrm$\{$mm$\}\backslash ).$

The value of $\backslash ($ r$\_\{$c$\}\backslash )$ is $\backslash (\backslash$mid $\backslash$quad $\backslash$mathrm$\{$mm$\}\backslash ).$

The value of $\backslash ($ c$\_\{$o$\}\backslash )$ is mm $.$

The value of $\backslash ($ c$\_\{$i$\}\backslash )$ is mm $.$

The value of $\backslash ($ e $\backslash )$ is mm $.$