复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (5): 19-24.

• 基础研究 • 上一篇    下一篇

嵌入式共固化缝合阻尼复合材料面内力学性能

闫盛宇, 梁森*, 陈新乐, 王玲   

  1. 青岛理工大学机械工程学院,青岛266520
  • 收稿日期:2019-08-26 出版日期:2020-05-28 发布日期:2020-05-28
  • 通讯作者: 梁森(1962-),男,博士,教授,高级工程师,博导,主要从事复合材料动力学方面的研究,liangsen888111@163.com。
  • 作者简介:闫盛宇(1994-),男,硕士生,主要从事复合材料结构设计方面的研究。
  • 基金资助:
    国家自然科学基金(51375248);山东省自然科学基金(ZR201807070249)

IN-PLANE MECHANICAL PROPERTIES OF EMBEDDED ANDCO-CURED STITCHED DAMPING COMPOSITE STRUCTURE

YAN Sheng-yu, LIANG Sen*, CHEN Xin-le, WANG Ling   

  1. School of Mechanical Engineering, Qingdao University of Technology, Qingdao 266033, China
  • Received:2019-08-26 Online:2020-05-28 Published:2020-05-28

摘要: 为了提高复合材料的面内力学性能,提出了正交对称嵌入式共固化缝合阻尼复合材料结构,建立该结构面内等效弹性参数的数值模拟模型,通过热压罐的中温共固化工艺制备出嵌入式共固化缝合阻尼复合材料试件,利用万能试验机的拉伸测试验证本文数值模拟方法的有效性。使用有效的ANSYS有限元模型进一步分析出面内等效弹性参数Ex、Ey、Gxy、νxy随针距、行距和阻尼层厚度的变化规律,为嵌入式共固化缝合阻尼复合材料结构力学性能研究奠定了基础。

关键词: 嵌入式共固化缝合阻尼结构, 数值模拟, 弹性模量Ex、Ey, 剪切模量Gxy, 泊松比νxy, 复合材料

Abstract: In order to improve the in-plane mechanical properties of composites, an orthogonal symmetric embedded and co-cured stitched damping composite structure is presented. A numerical simulation model of the equivalent elastic parameters of the structure was established. The embedded and co-cured stitched damping composite specimens were manufactured by the medium temperature co-curing process of the autoclave. The tensile test of the universal testing machine verified the effectiveness of the numerical simulation method. The effective ANSYS finite element model is used to further analyze the variation of the in-plane equivalent elastic parameters Ex, Ey, Gxy and νxy with the stitch length, line spacing and damping layer thickness. It lays a foundation for the study of mechanical properties of embedded co-cured stitched damping composites.

Key words: embedded co-cured suture damping structure, elastic modulus Ex,Ey, shear modulus Gxy, poisson′s ratio νxy, composites

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