Abstract

This chapter discusses the design and analysis of metric bolted joints. It introduces the basics of the guideline for ISO metric bolted joints to prevent potential failure modes such as embedding, clamp load loss, clamped plates crushing and slipping, bolt yielding, thread stripping, and bolt fatigue failure. The assumptions and the calculation procedure to estimate the elastic compliances of the bolt and clamped plates are also described. It also presents the commonly used FE bolt modeling techniques for forces and stress analysis, and recommends the appropriate fatigue damage assessment method for two different threaded bolts. The ISO metric bolted joints and their mechanical properties are presented in this section as background information. A through-bolted joint and a tapped thread joint are the commonly used joint assemblies in the automotive industry.

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