Fracture Evaluation in a Ceramic Spherical Dome Port Under Shock Impact |
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Authors: | S G Kwon Y S Lee J H Kim J H Lee K T Hwang S J Yoon |
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Institution: | (1) BK21 Mechatronics group, Dept. of Mechanical Design Engineering, Chungnam National University, Daejeon, Korea;(2) BK21 Mechatronics Group, Chungnam National University, Daejeon, Korea;(3) Agency for Defense Development, Daejeon, 305-152, Korea; |
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Abstract: | In this study, a fracture evaluation of a ceramic spherical dome port under shock impact has been presented. The experiments
were carried out with a shock tube device capable to produce a normal shock. The pressure behind the normal and reflected
shock wave was predicted by analytic equations based on initial conditions. The pressures were measured by embedded dynamic
pressure sensors. The fracture of specimen was occurred by the pressure behind the reflected shock wave. The pressure distribution
in shock tube was obtained during 0 to 5 ms. Simultaneously, the distributions of the pressure, temperature and velocity were
calculated in the shock tube at 3 ms after diaphragm burst for various thickness of dome port. The results of numerical analysis
and analytic solutions were good agreement with experimental results. |
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