| Symbol | deff |
|---|---|
| Unit | mm |
| Attribute-ID | effective_diameter_fkm_2012 |
| Numeric ID | 16630 |
| Value Type | PMTechValue |
The effective diameter deff is a cross section-specific parameter of the component, with which the technological size factors (Kd,m & Kd,p) are calculated. These technological size factors are then used to determine the component tensile strength Rm from the norm piece tensile strength Rm,N and the component yield strength Rp from the norm piece yield strength Rp,N.