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The Numerical Simulation of Missile-embeded Recorder Damage Process in Impact Environment

Author: LiJianJun
Tutor: LiJie；MaXiHong
School: University of North
Course: Circuits and Systems
Keywords: recorder penetration stress wave finite element ANSYS / LS-DYNA
CLC: TJ410.6
Type: Master's thesis
Year: 2011
Downloads: 41
Quote: 0
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Abstract


With the development of the stress wave theory and finite element technology, computer technology is used to simulate the stress wave theory and use of the process of the projectile penetrating analysis of the structure distortion has become a research tool, widely applied to Penetration testing in the field. This paper is based on the extensive literature, the use of more mature stress wave theory and finite element software ANSYS/LS-DYNA program, was shot around the penetration process are set out the process and principles of damaged recorder problems of numerical simulation.The Paper describes the process of penetrating the situation at home and abroad, on the theory of stress wave was analyzed, focusing on analysis of the stress wave theory of the wave equation and the stress wave in the solid structure of the incident, reflection, transmission and attenuation characteristics of the energy law. Finite element analysis software to establish a similar structure with the actual record of the structure Missile model, the coefficient of friction of simulation accuracy, time step control is defined with the hourglass, and the use of appropriate loading and boundary constraints. And on this basis, was shot and shells were set concrete targets for the recorder and the steel target penetration simulation, the simulation results of stress wave theory using a rational analysis and interpretation. Missile recorder for future design and installation of the structure may provide some theoretical reference.Finally, we summarize the full text of the work, and Missile-embeded Recorder in the Stress wave propagation studies are reviewed.

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CLC: > Industrial Technology > Arms industry > Ammunition, fuses, pyrotechnics > Ammunition > General issues > Test technology and equipment
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