Annex B, Example B1 of VDI 2230 Part 1:2015: the central bolt between the piston and piston rod of a hydraulic cylinder (tapped thread joint, concentric clamping and concentric loading, pulsating axial load), used to check the resilience, embedding, preload, working stress, fatigue, surface pressure and length of engagement results of the VDI 2230-1 single-bolt calculator point by point.
Annex B, Example B2 of VDI 2230 Part 1:2015: the bolts of a rigid flange coupling (through-bolt joint, transverse load carried by friction), used to check the required clamp load, resilience, embedding, preload, surface pressure, slipping and shearing results of the VDI 2230-1 single-bolt calculator point by point.
Annex B, Example B3 of VDI 2230 Part 1:2015: the central hollow bolt of a flywheel (tapped thread joint, torque carried by friction), used to check the required clamp load, resilience, permissible assembly preload, surface pressure, length of engagement and slipping results of the VDI 2230-1 single-bolt calculator point by point.
Annex B, Example B4 of VDI 2230 Part 1:2015: the necked-down bolt of a connecting-rod bearing cap (eccentric clamping and eccentric loading, angle-controlled tightening beyond the elastic limit), used to check the clamp loads, resilience, embedding, preload, surface pressure and slipping results of the VDI 2230-1 single-bolt calculator point by point.
A textbook worked example of a steel flange bolt under static load (M10-8.8 through-bolt joint with a required residual clamp load), used to check the resilience, load factor, preload loss due to embedding, assembly preload and safety margin against exceeding the yield point of the VDI 2230-1 single-bolt calculator point by point.
A textbook worked example of a connecting-rod necked-down bolt (M10-10.9 through-bolt joint, static and fatigue check), used to check the resilience, load factor, preload loss due to embedding, assembly preload, fatigue stresses and safety margins of the VDI 2230-1 single-bolt calculator point by point.
The connecting-rod necked-down bolt of a textbook worked example (eccentric clamping and eccentric loading, angle-controlled tightening), used to check the clamp loads, resilience, preload, surface pressure and fatigue results of the VDI 2230-1 single-bolt calculator point by point.
User manual of the MechCalc VDI 2230-1 single-bolt joint calculator: what it can and cannot calculate, the inputs of the eleven cards, the calculation steps R0 to R13, the result criteria and the limits.
Of the six typical failure modes of a bolted joint, only one is the bolt being pulled apart. This article starts from how a bolted joint works and gives a checklist: which joints need the systematic VDI 2230 calculation, which can do with simplified preselection, and what the standard covers and does not cover.
Explains eccentric clamping and eccentric loading in VDI 2230: the two eccentricity parameters, the corrected resiliences, the load factor, the substitutional moment of inertia, and the clamp load needed to prevent opening.