Abstract
Abstract Carbon Fiber-reinforced Polymer (CFRP) is widely used in weapons system because of their excellent specific strength, specific stiffness and fatigue resistance. Shaped charge cutting separation technology is the most widely used separation technology in aerospace due to its simple structure, high reliability, synchronization and other advantages. Through the cutting experiment of CFRP plate with different thickness, the cutting capacity threshold of the selected linear shaped charge is obtained as 15mm ∼ 16mm. Based on the experiment results, the finite element model of linear shaped charge cutting CFRP plate was established. The effects of different standoff, constraints and charge density on the cutting ability were calculated. The calculation results show that for the linear shaped charge in this paper, when the standoff is 3mm, the cutting performance is the best, and it can effectively cut through the CFRP plate with a thickness of 15mm; The designed 180mm × 100mm test plate can carry out the cutting experiment under the free boundary condition without affecting the cutting performance; The cutting depth of the linear shaped charge on the CFRP plate increase with the charge density, which exhibits a linear relationship. The research work in this paper can guide the selection and design of linear shaped charge for cutting and separating CFRP plate.
Published Version
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