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 SAE ARP 1185 for inch-dimensional tubing and fittings.
SAE MA2003-1981 Referenced Document
ISO 2964 Aerospace; Tubing; Outside diameters and thicknesses; Metric dimensions*， 1985-04-01 Update
SAE ARP1185 FLEXURE TESTING OF HYDRAULIC TUBING JOINTS AND FITTINGS