The ASCOR test: a simple automated method for stress corrosion testing of aluminium alloys

Alternate immersion stress corrosion testing according to ASTM specification G44 has proven to be representative for aluminium alloys in natural environments resembling the actual environmental conditions for aircraft. A simple automated stress corrosion testing method called the ASCOR (Automated Stress COrrosion Ring) test was developed to test...

Automated measurement of crack length and load line displacement at elevated temperature

Test results reported in the literature show that in creep cracking tests at elevated temperature under steady load, the crack growth rate correlates best with the contour integral C*, also called J*, in comparison to other possible parameters. In the case of fatigue at elevated temperature, the crack growth rate correlates best with C* if...