Description / Abstract:
This standard establishes flexure test procedures to determine
and classify the fatigue strengths of reconnectable or permanent
hydraulic tube joints.
The procedure is intended for conducting flexure tests of
fittings and joints with high strength hydraulic tubes of various
alloys such as corrosion resistant steel, Nimonic, titanium and
aluminum alloy hydraulic tube for use on commercial and military
aircraft.
A mean stress is applied by holding system pressure in the
specimens and then flexing in a rotary bending test machine. This
test method conforms with ARP 1185 for inch-dimensioned tubing and
fittings.