 
Allowable stress
 
Joint tensile stress
 
Minimum part thickness
 
Strength check
σ ≤ σ A
Meaning of used variables for metric units:
| S U | Joint strength in tension [MPa] | 
| k T | Tension safety factor | 
| F | Transferred force [N] | 
| b | Width of connected parts [mm] | 
| s | Thickness of connected parts [mm. | 
Meaning of used variables for English units:
| S U | Joint strength in tension [psi] | 
| k T | Tension safety factor | 
| F | Transferred force [lb] | 
| b | Width of connected parts [in] | 
| s | Thickness of connected parts [in] |