In this section an example analysis is presented, a file containing the input data for this example is included with the demo program in the directory that the program is installed into under the name example.fas.
In this example a M12 bolt (property class 10.9) is used
to secure a bracket to a casting that is made from spheroidal
graphite cast iron. The tolerance class of the bolt thread
is 6g and that of the internal thread is 6H. A tapping drill
of 10.2 mm diameter was used to form the internal thread and
the hole is countersunk to aid starting the thread. There
is also a chamfer at the start of the bolt thread. The ratio
of shear strength to tensile strength for the SG cast iron
is taken as 0.9 - this is based upon published test results.
The output from the program is presented below.