![]() They are very helpful for this type of work. I recommend purchasing the standard and one of the available commercial software packages. ![]() Then, calculate stresses, surface pressure, fatigue, thread engagement, etc. Then, you determine the minimum required preload: friction grip to resist transverse forces, or sealing against a medium, or to prevent opening along the joint interface(s). This is done with simple statics, finite-element calculations, etc.Īfter you have local conditions, then you input your joint geometry and materials. So, first you need to transform your global forces (applied forces, reactions, etc.) into a local condition at the fastener. VDI 2230 is used to analyze the situation at the actual fastener location. Perhaps you meant axial, in contrast to transverse. Your force is not concentric, it is eccentric.
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