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对称角铺设层合板层间应力数值分析

发表时间:2009-11-30  浏览量:1400  下载量:718
全部作者: 樊建平,潘祖兴,刘建煌
作者单位: 华中科技大学土木工程与力学学院,结构分析与安全评定湖北省重点实验室;华中师范大学网络教育学院
摘 要: 考虑面内受单向拉伸载荷作用,研究复合材料对称角铺设[±θ]s矩形层合板层间应力特性。设置单层板为线弹性正交异性材料,应用商业有限元软件(ANSYS)中三维实体单元Solid46进行几何建模和数值分析。给出了典型对称角铺设层合板[±25]s层间应力沿边界的分布规律。结果显示:角点处层间正应力达到最大;自由边处层间剪应力较高,角点处该剪应力降低。并给出了铺层偏轴角θ对层间应力的影响,得出层间最大应力随铺层角度的变化规律。
关 键 词: 复合材料;层合板;层间应力;数值分析;有限元软件
Title: Numerical analysis of interlaminar stress on symmetric angle-ply laminated rectangular plate
Author: FAN Jianping, PAN Zuxing,LIU Jianhuang
Organization: School of Civil Engineering & Mechanics, Hubei Key Laboratory for Engineering Structural Analysis and Safety Assessment; Network educational college, Huazhong Nornal University
Abstract: The paper focuses on the investigation of interlaminar stress characteristics of the symmetric angle-ply laminated rectangular plates [±θ ]s under uniaxial tensile loading. 3D solid element Solid46 is used in the commercial finite element software ANSYS for establishing geometric modeling and numerical analysis with linear-elastic anisotropic assumption in single ply. The interlaminar stress distribution near the edge of the typical symmetric angle-ply laminated plates [±25]s is discussed. The results show that the normal stress is maximum at corner points, while shear stress is relatively high at free edge and decreases at corner points. The effect of off-axis angle. on interlaminar stress is studied finally, and the relationship between maximum interlaminar stress and layer angle is achieved.
Key words: composite material; laminates; interlaminar stress; numerical analysis; ANSYS
发表期数: 2009年11月第22期
引用格式: 樊建平,潘祖兴,刘建煌. 对称角铺设层合板层间应力数值分析[J]. 中国科技论文在线精品论文,2009,2(22):2386-2389.
 
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