| A Tutorial on the Basics of Bolted Joints
The complexity of the simple nut and bolt is frequently underestimated.
A fully tightened bolt does not perform like a loose bolt.
A fully tightened bolted joint can sustain millions of load
cycles without problems, a joint consisting of untightened
bolts will frequently fail within a few cycles. The reason
for this is the way a bolted joint carries an external load
- a fully tightened bolt sustains only a small proportion
of any externally applied load. This tutorial seeks to explain
why this occurs.
Presented in this tutorial are details
about the basics of bolted joint technology and in particular
on the mechanics of the load transfer mechanism involved in
such joints. There are a number of pages to this tutorial
covering the topic from the basics. Additional pages are being
added as and when time permits. Bolt Science is committed
to providing assistance on bolted joint technologies to individuals,
companies and other organisations. If you have a question
on any of the topics - why not email us and we will try to
answer your query.
is preload important - why bolt's clamp force vital?
How a bolted joint sustains an applied force
What is a Joint Diagram?
Joint Diagram with an external force applied
The effect of a high external force on a joint
The effect of a compressive external force on a joint
The Effect of Joint Deformation loss due to Embedding
Bolt Preload Variation due to the Tightening Method
Bolted Joint Analysis using Preload Requirement Charts
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