Vdi 2230 2021 -

Clarified the interaction between axial working loads and transverse forces. The 2021 edition introduces a more rigorous check for in joints subjected to alternating shear loads (e.g., flanges in drivetrains).

The load factor φ determines what proportion of the external axial working load FA is actually carried by the bolt as additional bolt force FSA = φ·FA, and what proportion is absorbed by the clamped parts FPA = (1‑φ)·FA. This represents a fundamental insight of VDI 2230 — that the stiffness relationship between bolt and joint members determines how loads are distributed. vdi 2230 2021

): Elastic resilience of both the bolt and the clamped plates. Determine the Load Introduction Factor ( Clarified the interaction between axial working loads and

Optimizes bolt size and quantity, saving material and weight. This represents a fundamental insight of VDI 2230

: For heavy machinery and gearbox assemblies.

(2021) focuses on cylindrical single‑bolt joints (ESV), providing the complete systematic calculation procedure for one cylindrical bolt. This is the core document for most engineering applications.