玻璃钢/复合材料 ›› 2009, Vol. 209 ›› Issue (5): 31-35.

• 基础研究 • 上一篇    下一篇

纤维曲线铺放的变刚度复合材料层合板的屈曲

  

  1. 同济大学航空航天与力学学院,上海   200092
  • 出版日期:2009-09-28 发布日期:2009-05-25
  • 作者简介:马永前(1975),男,博士后,主要研究方向为固体力学及复合材料等。
  • 基金资助:

    上海市博士后基金(08R214148)

THE BUCKLING OF VARIABLESTIFFNESS COMPOSITE PANELS WITH
 CURVILINEAR FIBER FORMAT

  • Online:2009-09-28 Published:2009-05-25

摘要:

本文介绍了一种纤维曲线铺放的变刚度复合材料层合板的概念,利用这种新的铺放方法所引起的复合材料层合板面内应力的重新分布,提高了复合材料层合板的屈曲载荷。并且利用ABAQUSTM软件对这种纤维曲线铺放的复合材料层合板进行了建模计算,验证了其面内受力情况下,屈曲载荷显著提高,幅度达14%左右。

关键词: 复合材料, 层合板, 屈曲, 纤维曲线铺放, 变刚度, 面内受力

Abstract:

This paper presents a study on the concept of variablestiffness with curvilinear fiber format. Based on that concept, the redistribution of stress field occurs, which improves the buckling load of the laminated composite panels. By using ABAQUSTM, it proves the model of the concept and shows that the increment of the buckling load is significant, which is 14%.

Key words: composite material,  laminated plate, buckling; , curvilinear fiber,  variable stiffness,  loading inplane loading in plane.