| Summary: | 碩士 === 國立宜蘭大學 === 機械與機電工程學系碩士班 === 99 === An analysis of structural destroyed model about the bullet impact on the composite materials is carried out in this research with the method of using preprocessor of ANSYS and the solver of LS-DYNA. Put the material parameters in paper [3] into the analysis model and compare these with the case in paper [3] . If the answer is right, the following analyses on different materials, different element types, different initial velocities of bullets and different material thickness is performed. After that，the trajectory experimental analysis is operated with using the parameters in paper [1] and paper [2] . What is more, the results obtained from the above analyses are compared with the real experiment data, and concludes how the different mesh densities affect the analysis results.
The most suitable modeling setting can be concluded through comparing different result data, and a better modeling reference can be given to the users who want to analyze the structural destroyed model in the way of FEM.
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