Finite Element Analysis of 13 Degree Impact Test of Aluminum Rim
Date Issued
2007
Date
2007
Author(s)
Lin, Tung-Li
DOI
zh-TW
Abstract
The structural strength of rims must pass through a series of tests due to safety concerns and regulations. However, it often takes a lot of time and cost to develop a product in the process. In order to reduce time and cost, the CAE (Computer-Aided Engineering) technology is usually performed to design rims.
In this thesis, the main content is about the CAE simulation analysis of the aluminum rim under a 13 degree impact test. The dynamic analysis was simulated by using the finite element code, LS-DYNA. And the static analysis was simulated by using the finite element code, ABAQUS/Standard. Using those results treated the failure when the rims were impacted by the loading conditions.
In the construction of a finite element model, the boundary conditions of rims were shown how to build and compared with different constraint methods of bolt holes to find the adopted method as building a model. In addition, the convergence tests of linear tetrahedron elements and the quadratic tetrahedron elements were performed. Then, the available element size and element type were determined.
In analysis result, different equivalent dynamic loadings were compared. And found that the equivalent loading modified by energy method was similar with the dynamic result. For failure mold, the equivalent stress, equivalent strain and energy strain density of failure criteria were compared. The practicability of criteria was also discussed.
Eventually, the simulation analysis of 13 degree impact test has been analyzed by using the built finite element model. The method in this thesis for the finite element model of impact analysis could be extended to 13 degree impact test simulation.
Subjects
輪圈
動態模擬分析
靜態模擬分析
13度衝擊實測
等效負載
破壞準則
rim
dynamic analysis
static analysis
13 degree impact test
equivalent loadings
failure criteria
Type
thesis
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