Experimental Investigation of Cracking Along a Liner-Propellant Interface.

摘要

The fracture of a liner-propellant interface is studied experimentally using a tensile testing apparatus and videotape equipment. Additional experimental methods are used to supplement the conclusions derived from this testing, and computational modeling of the specimens is also performed. The fracture of the bimaterial is governed by the mode mixity and the properties of the constituents, and may involve crack growth along the interface or branching of the crack away from the interface, depending on the specific conditions.