| 热环境中功能梯度圆柱薄壳分岔屈曲的边界约束效应 |
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| 引用本文： | 彭凡,顾勇军.热环境中功能梯度圆柱薄壳分岔屈曲的边界约束效应[J].固体力学学报,2011,32(5):475-482. |
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| 作者姓名： | 彭凡 顾勇军 |
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| 作者单位： | 湖南大学机械与运载工程学院 |
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| 基金项目： | 湖南省自然科学基金项目(11JJ3001)资助 |
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| 摘 要： | 基于前屈曲一致理论,研究了热环境中受轴压功能梯度圆柱薄壳分岔屈曲的边界约束效应问题.导出前屈曲变形的解析解,结合分离变量法与有限差分法求解分岔屈曲控制方程,由此导出确定临界轴压的非线性特征值问题.考虑材料热物性质与温度的相关性,分别就两端简支和两端固支边界条件,分析了温度梯度、初始几何缺陷、组分材料体积分数对分岔屈曲临...
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| 关 键 词： | 功能梯度材料 圆柱薄壳 边界约束效应 分岔屈曲 缺陷敏感性 |
| 收稿时间： | 2010-06-18 |
EFFECT OF BOUNDARY CONSTRAINTS ON BIFURCATION BUCKLING OF FUNCTIONALLY GRADED MATERIAL CIRCULAR CYLINDRICAL SHELLS IN THERMAL ENVIRONMENT |
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| Fan Peng,Yongjun Gu.EFFECT OF BOUNDARY CONSTRAINTS ON BIFURCATION BUCKLING OF FUNCTIONALLY GRADED MATERIAL CIRCULAR CYLINDRICAL SHELLS IN THERMAL ENVIRONMENT[J].Acta Mechnica Solida Sinica,2011,32(5):475-482. |
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| Authors: | Fan Peng Yongjun Gu |
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| Institution: | Fan Peng Yongjun Gu (College of Mechanical and Vehicle Engineering,Hunan University,Changsha,410082) |
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| Abstract: | Based on prebuckling consistent theory,the effect of boundary constraints on the bifurcation buckling for functionally graded material circular cylindrical shells subjected to axial compression in thermal environment is investigated.The analytic solution is obtained for prebuckling deformation coupling thermal and mechanical loading as well as initial geometrical imperfects.The nonlinear eigen-value problem is derived by combining the approach of separating variables with the technique of finite difference ... |
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| Keywords: | Functionally graded Material circular cylindrical shell effect of boundary constraint bifurcation buckling imperfection sensitivity |
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