Article | REF: BM5561 V1

Calculating screw joints

Author: Jean GUILLOT

Publication date: November 10, 2007

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3. Thermal loads

When pre-crimped parts are subjected to significant temperature variations, stress variations due either to a difference between the bolt temperature T B and the part temperature T P , or to a difference between the bolt linear expansion coefficients α LB and the part linear expansion coefficients α LP , are generally not negligible.

3.1 General expression of effort variation

If we note T 0 the reference temperature (temperature at prestressing), we have :

  • change in bolt length due...

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Thermal loads