Allowable tooth root stress

Symbol	σ_FE
Unit	N/mm²
Attribute-ID	allowable tooth root stress
Numeric ID	825
Value Type	PMTechValue

Specification of the tooth root strength limit $σ$ _FG according to DIN 3990 Part 3 is required to calculate the damage equivalent tooth root stress according to FVA 257/II.

$σ_{F G} = σ_{F P} \times σ_{F m i n}$

σ_FG	Tooth root strength limit
σ_FP	Permissible tooth root stress
σ_Fmin	Required minimum safety factor for tooth root stress

For more information, see DIN 3990 Part 3 & THEMIS - FVA 257/II Research Project (in German)