| Summary: | 碩士 === 國立成功大學 === 土木工程學系碩博士班 === 100 === Faced with the threat of military and terrorist attacks, it is increasingly necessary and in fact required to make a great progress in the strength of structures. Nowadays, the study of the honeycomb sandwich structure focus on the static mechanics. In this study will use the nonlinear finite element software ABAQUS to build a dynamic model of the honeycomb sandwich structure.
To simulate the sandwich structures using the FEM had thought about perfect bonded in the past. However, in this way to simulate the model will high estimate the strength of the sandwich structure. In order to fit the real situation, the analysis of delamination and fracture must be considered in ABAQUS to build a complete model.
The result of the FEM analysis will compare with the experiment of the sandwich structure to test and verify. Accordingly the geometric parameters of the honeycomb structure analysis model for the effect of the impact resistance to understand the dynamic response of aluminum honeycomb structures.
For different shapes of the honeycomb structure in the case with the same relative density, the square honeycomb structure showing the energy absorption and anti-collision capabilities are the best. For the effect of pore size, the results show that pore size of the honeycomb structure smaller can provide better energy absorption.
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