A New Approach in Finite Element Modeling of Generally Laminated Composite Beams

机译：一般叠合组合梁有限元建模的新方法

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In this paper, a new finite element model for a generally laminated composite beam (LCB) is presented. Natural frequencies of a generally LCB are derived by developing the stiffness and mass matrices considering the effects of axial force, shear and torsional deformations and rotary inertia. This model includes coupling of bending and torsional modes of deformations which is usually present in LCBs due to ply orientation. The model is designed in such away that it can be used for single and double stepped cross-section. Comparing numerical results for simple cases with analytical solutions and literature indicate high accurate and quick response of the model.

机译：在本文中，提出了一种新的有限元模型，用于一般的层压复合梁（LCB）。考虑到轴向力，剪切和扭转变形以及旋转惯性的影响，通过开发刚度和质量矩阵可以得出一般LCB的固有频率。该模型包括弯曲和扭转变形模式的耦合，这通常由于层定向而存在于LCB中。该模型的设计使其可以用于单步和双步横截面。将简单案例的数值结果与解析解和文献进行比较，可以得出该模型的高精度和快速响应。

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《AMD-vol.257; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20061105-10; Chicago,IL(US)》|2006年|P.635-641|共7页
会议地点 ChicagoIL(US)
作者
M.T.Ahmadian; R.A.Jafari-Talookolaei;
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作者单位

School of Mechanical Engineering Sharif University of Technology, 11365-9567 Center of Excellent in Design, Robotics and Automation Tehran, Iran;

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正文语种 eng
中图分类机械零件及传动装置;
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2. Wavelet based spectral finite element modelling and detection of de-lamination in composite beams [J] . Mitra M, Gopalakrishnan S Proceedings of the Royal Society. Mathematical, physical and engineering sciences . 2006,第2070期

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3. Natural vibrations of laminated composite beams by using mixed finite element modelling [J] . Ramtekkar GS., Desai YM., Shah AH. Journal of Sound and Vibration . 2002,第4期

机译：混合有限元建模的层合组合梁固有振动。
4. A New Approach in Finite Element Modeling of Generally Laminated Composite Beams [C] . M.T.Ahmadian, R.A.Jafari-Talookolaei, American Society of Mechanical Engineers(ASME), ASME International Mechanical Engineering Congress and Exposition . 2007

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7. Multi-model finite element scheme for static and free vibration analyses of composite laminated beams [O] . BAND, UN, DESAI, YM 2015

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8. Effective Three-Dimensional (3-D) Finite Element Material Stiffness Formulationfor Modeling Laminated Composites [R] . Alexander, A., Tzeng, J. T., Drysdale, W. H., 1996

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A New Approach in Finite Element Modeling of Generally Laminated Composite Beams

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