| 复合材料多层板边缘效应起因分析 |
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| 引用本文： | 佟景伟 P.Priolo 等.复合材料多层板边缘效应起因分析[J].天津大学学报(自然科学与工程技术版),2001,34(2):171-174. |
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| 作者姓名： | 佟景伟 P.Priolo |
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| 作者单位： | [1]天津大学机械工程学院，天津300072 [2]卡利亚里大学机械 |
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| 基金项目： | 教育部博士点基金资助项目（97005604） |
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| 摘 要： | 为分析引起复合材料多层板自由边沿效应与端部效应的物理因素，分别研究了弹性模量、泊松比和上下两层材料主轴方向夹角时对自由边沿效 应的影响，给出了相应的三维有限元层间应力解及其三维分布图。结果表明，弹性模量和上下两层材料主轴方向夹角使层合板上下两层变形不一致，引起多层板自由边沿效应与端部效应，其泊松比是直接影响因素。
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| 关 键 词： | 复合材料多层板 自由边沿效应 弹性模量 泊松比 有限元方法 应力分析 边缘效应 |
| 文章编号： | 0493-2137（2001）02-0171-04 |
| 修稿时间： | 1999年10月26 |
EDGE EFFECTS OF
FIBER-ENFORCED COMPOSITE LAMINATES UNDER UNIFORM AXIAL STRAIN |
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| TONG Jing-wei ,XIE Ma-yue ,SHEN Min ,LI Hong-qi ,P Priolo ,F Aymerich.EDGE EFFECTS OF
FIBER-ENFORCED COMPOSITE LAMINATES UNDER UNIFORM AXIAL STRAIN[J].Journal of Tianjin University(Science and Technology),2001,34(2):171-174. |
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| Authors: | TONG Jing-wei XIE Ma-yue SHEN Min LI Hong-qi P Priolo F Aymerich |
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| Institution: | TONG Jing-wei 1,XIE Ma-yue 1,SHEN Min 1,LI Hong-qi 1,P Priolo 2,F Aymerich 2 |
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| Abstract: | To study the edge effects of fiber-enforced composite laminates under uniform axial strain,influences of elastic modulus,Poisson ratio and the angle between the material axes of the two adjacent layers on the stress distribution are analyzed.The three-dimensional finite element interlaminar stress solutions of cross-ply and angle-ply laminates and their three dimensional distrrbution-plots are presented.The results demonstrate that the elastic modulus and angle of the adjacent material axes are direct elements of edge effects of the composite laminates.Furthermore,Poisson ratio is the elementary cause of these phenomena. |
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| Keywords: | finite-element method composite laminates free-edge effect elastic modulus poisson ratio |
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