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황권태(Kwontae Hwang),김재훈(Jaehoon Kim),이영신(Youngshin Lee),박종호(Jongho Park),송기혁(Keehyuck Song),윤수진(Soojin Yoon) 한국추진공학회 2009 한국추진공학회 학술대회논문집 Vol.2009 No.5
Fracture characteristics of plate shape using shock tube for glass filled ceramics was carried out. Glass filled ceramics have been considered as a promising candidate material for the dome port cover of air breathing engine. This part of the air breathing engine has an important role separating solid and liquid fuel, and needs the frangible characteristics that the fracture of a part should not affect the internal components of combustion. The objectives of this study are to evaluate the fracture pressures for various thicknesses and diameters of shock impact area. Also fracture phenomena of separated membrane using a shock tube are observed. The experimental apparatus of shock tube consists of a driver, a driven section and a dump tank. The used material is glass filled ceramic made from Corning company. Specimens are used 3, 4.5 and 6mm thickness. Also diameters of shock wave area are chosen 70, 60 and 50 mm. It is expected that the results obtained from this study can be used in the basic data for the dome port cover design of an air breathing engine.
황권태(Kwontae Hwang),김재훈(Jaehoon Kim),이영신(Youngshin Lee),박종호(Jongho Park),송기혁(Keehyuck Song),윤수진(Soojin Yoon) 한국추진공학회 2009 한국추진공학회지 Vol.13 No.4
Fracture behavior of ceramic dome port cover on air breathing engine using liquid and solid fuel propulsion system was carried out in this study. Fracture characteristics was tested and estimated using scaled model of ceramic dome port cover by Shock tube . Fracture behavior was obtained by the fracture pressure from pressure sensor and observed the scattering phenomena of fracture specimen using high speed camera. Results obtained from this study can be used in the base data of dome port cover design for an air breathing engine.