Vdi 2230 2021

: Check against yield strength and fatigue limits to ensure the joint fulfills its function without failure . Reference Tables & Tools Safe bolt verification with Eurocode and VDI 2230 - CADFEM

). If the parts are too soft compared to the bolt, the joint will fail. Step 3: The Moment of Tension

A key note from 2021: (determining required tightening torque) now mandates separate calculation of head friction and thread friction; no more lumped "total friction factor."

: Calculate how operating forces are distributed between the bolt and clamped parts .