• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >Buckling analysis of tri-axial woven fabric composite structures. Part Ⅱ: parametric study—uni-directional loading
【24h】

Buckling analysis of tri-axial woven fabric composite structures. Part Ⅱ: parametric study—uni-directional loading

机译：三轴机织物复合结构的屈曲分析。第二部分：参数研究-单向载荷

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The buckling behavior of simple tri-axially woven composite structure is studied. There are two cases of these simple structures that are considered: one is a basic structure and the other is the modified basic structure where additional weavings are added to make the structure longer and wider. The basic composite structure consists of six individual curved tows and they are bonded by resin at interlaced parts of the tows. The structure is subjected to uni-directional loading. The sensitivity of the buckling behavior of the basic tri-axial structure to the change in the boundary conditions and to the imperfection due to initial configuration is investigated. The sensitivity analysis of buckling behavior to the in-plane aspect ratio of the structure is also studied. The numerical results and corresponding physical explanations are given. In order to gain some insight into the buckling behavior of more complicated tri-axial woven fabric composite structures, the buckling analysis of the modified and enlarged basic tri-axial composite structures subjected to uni-directional loading is conducted. Numerical results reveal that these modified and enlarged basic tri-axial composite structures have almost the same buckling behavior as the basic tri-axial structure. In order to provide confirmation to the numerical solutions and to provide simpler ways to obtain the results, approximate analytical solution corresponding to the basic tri-axial structure has been derived by using equivalent multi-layered plate theory. The numerical result obtained for the basic tri-axial structure is compared with the analytical solution. The investigation of the effect of the resin on the basic tri-axial woven composite structure shows that the Young's modulus of the resin has little effect on the buckling behavior of the basic tri-axial structure due to the interaction of the woven tows constituting the structure.
机译：研究了简单的三轴编织复合结构的屈曲行为。考虑了两种简单结构的情况：一种是基本结构，另一种是修改后的基本结构，其中添加了额外的编织以使结构变长和变宽。基本的复合结构由六个单独的弯曲丝束组成，它们通过树脂在丝束的交错部分粘合。该结构承受单向载荷。研究了基本三轴结构的屈曲行为对边界条件的变化以及由于初始构型引起的缺陷的敏感性。还研究了屈曲行为对结构面内纵横比的敏感性分析。给出了数值结果和相应的物理解释。为了对更复杂的三轴机织物复合结构的屈曲行为有一定的了解，对单向载荷作用下的改性和扩大的基本三轴复合结构的屈曲进行了分析。数值结果表明，这些改进和扩大的基本三轴复合结构具有与基本三轴结构几乎相同的屈曲行为。为了提供数值解的确认并提供更简单的方法来获得结果，使用等效的多层板理论推导了对应于基本三轴结构的近似解析解。将基本三轴结构的数值结果与解析解进行了比较。对树脂对基本三轴编织复合结构的影响的研究表明，由于构成结构的编织丝束的相互作用，树脂的杨氏模量对基本三轴结构的屈曲行为几乎没有影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号