List of symbols

Symbol Name of the symbol Unit
$C_1$ coefficient $ C_1 $ $\mathrm{}$
$C_2$ coefficient $ C_2 $ $\mathrm{}$
$C_3$ coefficient $ C_3 $ $\mathrm{}$
$C_4$ coefficient $ C_4 $ $\mathrm{}$
$D$ diameter, larger diameter $\mathrm{mm}$
$H$ width, larger width $\mathrm{mm}$
$K_t$ stress concentration factor $\mathrm{ }$
$L$ length or shoulder width $\mathrm{mm}$
$M$ moment $\mathrm{Nm}$
$P$ load, force $\mathrm{N}$
$T$ torque $\mathrm{Nm}$
$d$ diameter $\mathrm{mm}$
$d$ width $\mathrm{mm}$
$h$ thickness $\mathrm{mm}$
$r$ radius of curvature of hole, arc, notch $\mathrm{mm}$
$t$ depth of groove, notch $\mathrm{mm}$
$σ_{max}$ maximum normal stress $\mathrm{MPa}$
$σ_{nom}$ nominal or reference normal stress $\mathrm{MPa}$