Intelligent Bolts: From Theory to Track

Steven Kendell, Business Development Manager, Staytite Rail

RailEI Lunch & Learn

Applying the same torque to two bolts does not necessarily produce the same clamp force. Why does this happen, and what can measuring bolt load tell us?
This technical lunch and learn explores the relationship between torque, bolt tension and clamp force, including the influence of friction and the torque coefficient, or K factor. It will introduce the principles of stress, strain and elastic bolt extension, before explaining how Intelligent Bolts use this behaviour to measure load and transmit readings for on-site and remote monitoring.
Drawing on railway case studies, the session will examine variation in achieved bolt load, fishplate seating, bedding-in and changes following the passage of trains. These examples will demonstrate how measured data has informed installation best practice and improved our understanding of joint behaviour.
Attendees can expect a technical discussion of the engineering principles, how the technology works and the practical lessons learnt during installation and use on the railway.

Microsoft Teams meeting

Join: https://teams.microsoft.com/meet/3492036187574692?p=zwyvYkDxHv26Z2XLfY

Meeting ID: 349 203 618 757 469 2

Passcode: rS3bA2PG

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+44 20 3321 5213,,847086488# United Kingdom, City of London

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