The dynamic impact analysis is performed for predicting the buckling behavior of a grid structure under the lateral<br/> impact load by finite element method. The grid structure is composed of several thin plates which were inserted each<br/&...
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https://www.riss.kr/link?id=A75896472
2002
Korean
550
학술저널
1-6(6쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
The dynamic impact analysis is performed for predicting the buckling behavior of a grid structure under the lateral<br/> impact load by finite element method. The grid structure is composed of several thin plates which were inserted each<br/&...
The dynamic impact analysis is performed for predicting the buckling behavior of a grid structure under the lateral<br/>
impact load by finite element method. The grid structure is composed of several thin plates which were inserted each<br/>
other and then each contact places were welded by laser welding. The finite element model is produced using preprocessor<br/>
I-DEAS, and solved using nonlinear commercial solver ABAQUS/explicit. In this work, two models are<br/>
proposed for FE analysis. One is the simplified model and the other is multi constrained one. Applied boundary<br/>
conditions for dynamic impact analysis were nearly the same with actual boundary conditions for impact test. The<br/>
dynamic impact parameters of a grid structure such as critical impact acceleration, impact force and buckling mode and<br/>
so on, are over-estimated with test results. Based on these results, the FE analysis model of the grid structure is need to<br/>
modify the stiffness of a grid cell structure. According to these results, the FE model is modified for estimating the<br/>
buckling behavior of grid structure. This modified FE model will be compared with test and analysis results using the<br/>
simplified model.
목차 (Table of Contents)
최적화 H형 스프링이 부착된 핵연료 지지격자의 충격해석