| 基于物理中面FGM梁的非线性力学行为 |
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| 引用本文： | 牛牧华,马连生.基于物理中面FGM梁的非线性力学行为[J].工程力学,2011(6):219-225. |
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| 作者姓名： | 牛牧华 马连生 |
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| 作者单位： | 兰州理工大学理学院; |
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| 基金项目： | 国家自然科学基金项目(11072100,10872083); 甘肃省自然科学基金项目(0710RJZA057); 甘肃省教育厅项目(0603B-05); 兰州理工大学工程力学重点学科团队项目 |
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| 摘 要： | 当坐标面置于功能梯度材料(FGM)梁的物理中面上时,其本构方程中,面内力与弯矩并不耦合,这使得问题的控制方程以及边界条件得以简化.该文利用物理中面概念,基于一阶非线性梁理论,导出了FGM梁的基本方程,分析研究了热载荷作用下FGM梁的过屈曲、弯曲以及在这些构形上的振动等问题.假设功能梯度材料性质只沿梁厚度方向,并按成分含...
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| 关 键 词： | 功能梯度材料(FGM) 物理中面 过屈曲 弯曲 振动 |
NONLINEAR MECHANICAL BEHAVIORS OF FGM BEAMS BASED ON THE PHYSICAL NEUTRAL SURFACE |
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| NIU Mu-hua,MA Lian-sheng.NONLINEAR MECHANICAL BEHAVIORS OF FGM BEAMS BASED ON THE PHYSICAL NEUTRAL SURFACE[J].Engineering Mechanics,2011(6):219-225. |
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| Authors: | NIU Mu-hua MA Lian-sheng |
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| Affiliation: | NIU Mu-hua,MA Lian-sheng(School of Science,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | The stretching-bending coupling in constitutive equations of a functionally graded materials(FGM) beam does not exist when the coordinate system is located at the physical neutral surface of the FGM beam,thus the governing equations and boundary conditions for the FGM beam can be simplified.Based on the non-linear first-order shear deformation beam theory(FBT),the basic equations of the FGM beam are derived using the physical neutral surface concept.The thermal post-buckling,thermal bending and vibration re... |
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| Keywords: | functionally graded material(FGM) physical neutral surface post-buckling bending vibration |
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