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 $ | $\mathrm{}$ |
| $C_1$ | coefficient $ C_1 $ | $\mathrm{}$ |
| $C_2$ | coefficient $ C_2 $ | $\mathrm{}$ |
| $C_3$ | coefficient $ C_3 $ | $\mathrm{}$ |
| $C_4$ | coefficient $ C_4 $ | $\mathrm{}$ |
| $C_5$ | coefficient $ C_5 $ | $\mathrm{}$ |
| $D$ | diameter, larger diameter | $\mathrm{mm}$ |
| $H$ | width, larger width | $\mathrm{mm}$ |
| $K_{tgA}$ | stress concentration factor with the nominal stress based on gross area at point $ A $ | $\mathrm{ }$ |
| $K_{tgB}$ | stress concentration factor with the nominal stress based on gross area at point $ B $ | $\mathrm{ }$ |
| $K_{tgC}$ | stress concentration factor with the nominal stress based on gross area at point $ C $ | $\mathrm{ }$ |
| $K_{tg}$ | stress concentration factor with the nominal stress based on gross area | $\mathrm{ }$ |
| $K_{tn}$ | stress concentration factor with the nominal stress based on net area | $\mathrm{ }$ |
| $M$ | moment | $\mathrm{Nm}$ |
| $P$ | load, force | $\mathrm{N}$ |
| $R$ | radius of thin cylinder or sphere | $\mathrm{mm}$ |
| $T$ | torque | $\mathrm{Nm}$ |
| $a$ | dimension $ a $ | $\mathrm{mm}$ |
| $b$ | dimension $ b $ | $\mathrm{mm}$ |
| $c$ | dimension $ c $ | $\mathrm{mm}$ |
| $d$ | diameter of hole | $\mathrm{mm}$ |
| $d_i$ | diameter of central hole | $\mathrm{mm}$ |
| $e$ | dimension $ e $ | $\mathrm{mm}$ |
| $h$ | thickness | $\mathrm{mm}$ |
| $l$ | dimension $ l $ | $\mathrm{mm}$ |
| $p$ | pressure | $\mathrm{MPa}$ |
| $β$ | parameter $ β $ | $\mathrm{ }$ |
| $ν$ | Poisson's ratio | $\mathrm{ }$ |
| $σ$ | normal stress | $\mathrm{MPa}$ |
| $σ_A$ | normal stress at point $ A $ | $\mathrm{MPa}$ |
| $σ_B$ | normal stress at point $ B $ | $\mathrm{MPa}$ |
| $σ_C$ | normal stress at point $ C $ | $\mathrm{MPa}$ |
| $σ_{maxA}$ | maximum normal stress $ σ_{maxA} $ | $\mathrm{MPa}$ |
| $σ_{maxB}$ | maximum normal stress $ σ_{maxB} $ | $\mathrm{MPa}$ |
| $σ_{max}$ | maximum normal stress | $\mathrm{MPa}$ |
| $σ_{nom}$ | nominal or reference normal stress | $\mathrm{MPa}$ |