고속가압에 의한 고체추진제의 균열진전평가에 관한 연구

다국어 초록 (Multilingual Abstract)

An experiment of rapid pressurization-induced crack propagation of solid propellant was conducted by using a windowed test chamber. A pre-cracked specimen of solid propellant is installed in the chamber, and highly compressed nitrogen gas in an accumulator pressurizes the chamber until the chamber pressure reaches set-up pressure to make the chamber depressurization. Pressure-time trace was obtained from the experimental result, and pressurization rate was defined from the trace. In this study, three pressurization rates (64.34, 73.86 and 85.44 MPa/s) are considered, and propagation lengths are measured. Also, a progression of the crack propagation recorded by a high-speed digital camera is presented.

참고문헌 (Reference)

1 한국추진공학회, "항공우주 추진기관 개론" 한티미디어 2008

2 Ide, Kym M., "Fracture Behaviour of Accelerated Aged Solid Rocket Propellants" 34 (34): 4209-4218, 1999

3 Liu, C. T., "Crack Growth Behavior in a solid Propellant" 56 (56): 127-135, 1997

4 Wu, S. R., "Combustion-Induced Crack/Debond Propagation in a Metalized Propellant" 1992

5 Wu, S. R., "Anomalous Combustion of Solid Propellant in a Propagating Debond Cavity" 1992