What is most Important for Operating of Screw Joints?

This letter contains important aspects for operating of screw joints as extension to typical books or articles. Fundamentals of screw joints are base for understanding. If used as a checklist, you are equipped with considerations for best boundary conditions of operating, because this decides between failures and success.

Main points are:

• Failure types of screw joints in operation
• Non-linearities from transfer-functions and stressing
• Mechanism of self-loosening
• Preload relaxation in aluminum components
• Hidden risks

This letter contains beneficial answers to following questions:

• What are the typical failure mechanism of screw joints in operation?
• What are the main reasons for preload loss and self loosening?
• Do you know fundamental transfer-functions to be considered - this helps for good behavior?
• Do you know actions against risk of failures?

You will find much more answers in the letter itself.