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 $ | $\mathrm{}$ |
| $D$ | dimension $ D $ | $\mathrm{mm}$ |
| $K_t$ | the elastic stress concentration factor | $\mathrm{}$ |
| $K_{tu}$ | the elastic stress concentration factor for a U-notch | $\mathrm{}$ |
| $L$ | dimension $ L $ | $\mathrm{mm}$ |
| $M_1$ | unit moment $ M_1 $ | $\mathrm{Nmm}$ |
| $M_2$ | unit moment $ M_2 $ | $\mathrm{Nmm}$ |
| $d$ | dimension $ d $ | $\mathrm{mm}$ |
| $h$ | dimension $ h $ | $\mathrm{mm}$ |
| $r$ | dimension $ r $ | $\mathrm{mm}$ |
| $t$ | thickness | $\mathrm{mm}$ |
| $θ$ | notch angle | $\mathrm{°}$ |
| $σ_1$ | normal stress $ σ_1 $ | $\mathrm{MPa}$ |
| $σ_2$ | normal stress $ σ_2 $ | $\mathrm{MPa}$ |
| $σ_A$ | normal stress at point $ A $ | $\mathrm{MPa}$ |
| $σ_B$ | normal stress at point $ B $ | $\mathrm{MPa}$ |