The linear shaped charge (LSC) is also called a plane-symmetric shaped charge, and the cover is wedge-shaped. When the paint cover is subjected to the high temperature and high pressure detonation product formed by the explosion of the explosive, the metal wall of the inner wall metal in the symmetric plane extrusion block moves to the bottom of the charge at a high speed, and acts on the target plate and cuts it. Due to the detonation of explosives in the linear shaped charge, the complex mechanical problems such as large deformation of the material at high temperature, high pressure and high strain rate are difficult to describe by the traditional mechanical formula, so the predecessor on the linear shaped charge The research is mainly based on experiments. With the development of computer technology and numerical analysis methods, numerical simulation has gradually become an important method for studying shaped charge.
There is a linear relationship between charges of similar geometry, and the charge of the two charges is similar when a charge is a result of a linear factor ratio of another charge. Since Bertrand of France established similar the first theorem in 1848, the similarity law has been supplemented and improved, and has been widely used. In 1973, Baker et al. made good similarity and proportioning (Continued from page 32). )
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