| 含脱层层合简支梁的屈曲模态 |
| |
| 引用本文： | 朱波,周叮,刘伟庆.含脱层层合简支梁的屈曲模态[J].上海交通大学学报,2011,45(10):1460-1464. |
| |
| 作者姓名： | 朱波 周叮 刘伟庆 |
| |
| 作者单位： | （南京工业大学 土木工程学院，南京 210009） |
| |
| 基金项目： | 国家重点基础研究发展规划(973)项目前期研究专项(2008CB617613); 国家自然科学基金资助项目(50978134) |
| |
| 摘 要： | 基于二维弹性力学理论，研究在轴向荷载作用下含脱层层合简支梁的屈曲模态.由位移法求得各单层梁受均布轴压时的弹性力学解，采用配点法联合各层得到整个系统的解.在层间界面上取与级数项数相等的点，将各点处的界面方程与梁上下表面的边界方程联立求解，得到屈曲临界载荷，返回特征方程得到梁的屈曲模态.研究了脱层界面的接触问题，在脱层处的每个配点上分别使用界面接触和界面自由模型进行计算，分析各配点处脱层表面竖向位移及法向应力的状态，迭代求得真实解.算例分析了不同脱层尺寸和脱层位置对层合梁屈曲模态的影响，并考虑了脱层间的接触.
|
| 关 键 词： | 层合梁 脱层 屈曲模态 配点法 界面接触 |
| 收稿时间： | 2010-09-22 |
Analysis on Buckling Modes of Simply Supported Delaminated Beams |
| |
| ZHU Bo,ZHOU Ding,LIU Wei-qing.Analysis on Buckling Modes of Simply Supported Delaminated Beams[J].Journal of Shanghai Jiaotong University,2011,45(10):1460-1464. |
| |
| Authors: | ZHU Bo ZHOU Ding LIU Wei-qing |
| |
| Institution: | (College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China) |
| |
| Abstract: | Based on the two-dimensional elasticity theory,the buckling modes of delaminated composite beams were studied.Firstly,according to the plane elasticity theory,the analytical solution of a piece of homogeneous beam is obtained,which exactly satisfies the simply-supported conditions of the beam at two ends.Then,using the point collocation technique,taking the series terms equal to the matching points,the critical buckling loads were obtained by means of the interface equations at every points as well as the u... |
| |
| Keywords: | laminated beam delamination buckling mode point collocation interface contact |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《上海交通大学学报》浏览原始摘要信息 |
| 点击此处可从《上海交通大学学报》下载免费的PDF全文 |
