Equipment for Testing the Creep Properties of Metals Under Intermittent Stressing and Heating Conditions

Four creep testing units were constructed at the University of California to test the creep strength of aircraft metals under intermittent loading and heating conditions. The equipment was designed to permit operations of loading, unloading, heating and cooling of the test specimen to occur automatically and periodically on a preset cycle. Special care was taken to provide smooth and vibration free function of the equipment. Provisions were made for the accurate and continuous recording of both strains and temperature throughout the test.