Abstract: A life-fraction rule is often used to predict the rupture life of a piece of elevated-temperature equipment exposed to several temperature and stress conditions. It is based on the assumption ...

Abstract: The paper describes some experimental work designed to investigate the bursting of pipe and pressure vessels by gaseous detonation. The test specimens were 3.25-in-OD tubes, 12 in. long, and ...

Abstract: Propagation of a crack from a flaw that escaped nondestructive inspection is shown to be an important mode of failure of rocket motor cases. The notch strengths of part-through crack tensile ...

Abstract: Gross-strain crack tolerance is a measure of fracture toughness that is useful where yielding precedes fracture yet flaw size must be treated quantitatively. In these tests, rectangular bars ...

Abstract: Valve bodies made of seven materials from five suppliers were thermal-shock tested by heating to 1300 F, 1500 F, 1600 F, or 1800 F and then quenching with a fire-hose stream. None cracked ...