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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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초록· 키워드
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There has been considerable interest over the last twenty years in the subject of the elastic properties of the cord-rubber laminates. This has been due to the rather intensive study of the composites materials characteristics brought about by the increased use of rigid composites in many structural applications.
The object of this study is to obtain the natural frequencies and modes of the simply supported cord-rubber laminate plates prior to the study on the analysis of the dynamic properties of the pneumatic tire.
To obtain these natural frequencies and modes, the 12 degrees of freedom orthotropic rectangular plate finite elements are developed. By using the c1assicallamination theory, the
stress-strain relations are represented.
The governing equation for the finite element is derived by energy method.
To find the natural frequencies and modes, the eigenvalues and corresponding eigenvectors are computed by the well known Jacobi power method.
In order to verify the capability of this present finite element, the results of the specially orthotropic plate and the angle-ply laminate plate are compared with the analytical solution. The analytical and numberical results are in good agreement.
The following problems of the simply supported plate are analyzed by the present finite element.
a) The natural frequencies and mode shapes of the cord-rubber laminate plate for various aspect ratio.
b) The natural frequencies and mode shapes of the orthotropic plate with the rectangular hole in its center.
The object of this study is to obtain the natural frequencies and modes of the simply supported cord-rubber laminate plates prior to the study on the analysis of the dynamic properties of the pneumatic tire.
To obtain these natural frequencies and modes, the 12 degrees of freedom orthotropic rectangular plate finite elements are developed. By using the c1assicallamination theory, the
stress-strain relations are represented.
The governing equation for the finite element is derived by energy method.
To find the natural frequencies and modes, the eigenvalues and corresponding eigenvectors are computed by the well known Jacobi power method.
In order to verify the capability of this present finite element, the results of the specially orthotropic plate and the angle-ply laminate plate are compared with the analytical solution. The analytical and numberical results are in good agreement.
The following problems of the simply supported plate are analyzed by the present finite element.
a) The natural frequencies and mode shapes of the cord-rubber laminate plate for various aspect ratio.
b) The natural frequencies and mode shapes of the orthotropic plate with the rectangular hole in its center.
목차
ABSTRACT
1.緖論
2.直交 異方性 複合板 有限要素
3.直交異方性 材料의 應力 一變形率 關係式
4.統制方程式
5.數直解析
6.結果 및 檢討
7.結論
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2009-556-014073265