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Document No: DELTA SIGMA-USM
Version 4
Revision 3.94.2
2.2
PROJECT / BOLT DATA FILES
A joint is a structure that contains a collection of bolts whose purpose is to hold the structure
together through the combined clamping force of the bolts on the joint. These bolts can all be
the same size or may be of different diameters and lengths (types). The data structure used in
the DS is setup to accommodate this logical bolted joint structure. The Project file includes
the basic joint information and stores the Length, Stretch and Load data.
The DS requires geometric, ultrasonic and material information specific to a type of bolt to
determine the load ultrasonically. This information is stored in the Bolt Type File. A bolt type
must be named and entered for bolts with different geometries, grip lengths and/or loading
requirements.
