Description / Abstract:
1. SCOPE:
Performed tensile and fatigue tests on bolts to determine if cutting
of materials flow lines at the
bolt underhead would degrade bolt integrity. Five different alloys
used in aerospace industry
fatigue critical applications were employed to fabricate 5/16 to 1/2
inch diameter bolts. These
bolts were machined from bar stock producing fully cut material flow
lines under their heads.
Tensile testing with and without underhead washers was performed along
with industry standard
fatigue testing.