Vdi — 2230 2021 [portable]

The guideline treats the bolted joint not as isolated parts, but as an elastic system. When a bolt is tightened, it stretches like a spring, while the clamped clamped parts compress like a second spring. VDI 2230 analyzes how external working loads redistribute through this elastic system. 2. Key Updates in the 2021 Revision

Pick a preliminary bolt diameter (e.g., M12, M16) and strength class (e.g., 8.8, 10.9, 12.9) that can safely supply the required maximum assembly preload. Step 7: Verify assembly stress ( σbmaxsigma sub b space m a x end-sub vdi 2230 2021