What is it about?
The article considers in-plane external loads acting on preloaded bolted joint. It is shown that in-plane loads can produce both bolt bending stress and additional bolt tensile stress in preloaded joints
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Why is it important?
Bolt bending stresses and additional bolt tensile stresses, that are not predicted using classical analyses of load distributions within preloaded bolted joint, can lead to the bolt material exceeding its limit of proportionality. This could lead to some reduction in the bolt preload, resulting in the joint not functioning as intended and could lead to bolt loosening and joint failure.
Perspectives
I hope this article makes people think about preloaded bolted joints not just as a ubiquitous feature of mechanical engineering but also as a complex, interesting, engineering systems in their own right.
Michael Welch
Michael A. Welch (Consulting Engineers) Ltd.
Read the Original
This page is a summary of: Analysis of Bolt Bending in Preloaded Bolted Joints, Strojnícky časopis - Journal of Mechanical Engineering, November 2018, De Gruyter,
DOI: 10.2478/scjme-2018-0034.
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