蒙皮铺层形式对泡沫夹芯结构准静态压痕试验的影响

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (9): 47-51.

蒙皮铺层形式对泡沫夹芯结构准静态压痕试验的影响

魏浩¹, 朱凌², 王继辉^1*

1.材料复合新技术国家重点实验室,武汉 430070;
2.武汉理工大学绿色船舶与海工装备技术研究中心,武汉 430063

收稿日期:2015-04-24 出版日期:2015-09-28 发布日期:2021-09-14
通讯作者: 王继辉(1962-),男,博士,教授,主要从事聚合物基复合材料力学研究,jhwang@whut.edu.cn。
作者简介:魏浩(1989-),男,硕士,主要从事聚合物基复合材料研究。

EFFECTS OF FACE SHEET LAY-UP TO THE FOAM SANDWICH STRUCTURE SUBJECTED TO QUASI-STATIC INDENTATION

WEI Hao¹, ZHU Ling², WANG Ji-hui^1*

1. State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;
2. Green ship and Marine Engineering Equipment Technology Research Centre, Wuhan University of Technology, Wuhan 430063, China

Received:2015-04-24 Online:2015-09-28 Published:2021-09-14

摘要/Abstract

摘要： 研究了准各向同性铺层泡沫夹芯结构蒙皮铺层形式对结构准静态压痕(QSI)试验的影响。通过对比结构吸能效率、失效机理以及底部面板失效挠度,发现方格布蒙皮试样失效主要以纤维断裂为主,含有单向布的试样失效主要以分层破坏为主,方格布与单向布混合铺层试样失效包含分层以及纤维断裂,具有较大的吸能效率。此外,底部蒙皮失效挠度与结构蒙皮以及夹芯结构性能相关,与吸能效率没有直接关系。

关键词: 准静态压痕, 泡沫夹芯结构, 准各向同性, 吸能效率

Abstract: In this paper, we tested quasi-isotropic face sheet foam sandwich structures with different kinds of lay-up face sheet under quasi-static indentation (QSI) test. Through analyzing different specimens' energy absorption efficiency, failure mechanism and bottom face sheet failure deflection, we could conclude that woven roving specimens failed mainly by fiber breakage, while unidirectional woven roving specimens mainly in the form of delamination. However, specimens added woven roving to the surface of unidirectional woven roving or multi-axial fabric failure feature included both fiber breakage and delamination and with bigger energy absorption efficiency. Besides, the bottom face sheet failure deflection was restricted by the mechanical properties of face sheet and the whole structure, which had no straight relationship with the energy absorption efficiency.

Key words: quasi-static indentation, foam sandwich structure, quasi-isotropic lay-up, energy absorption efficiency

中图分类号:

TB332

魏浩, 朱凌, 王继辉. 蒙皮铺层形式对泡沫夹芯结构准静态压痕试验的影响[J]. 复合材料科学与工程, 2015, 0(9): 47-51.

WEI Hao, ZHU Ling, WANG Ji-hui. EFFECTS OF FACE SHEET LAY-UP TO THE FOAM SANDWICH STRUCTURE SUBJECTED TO QUASI-STATIC INDENTATION[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(9): 47-51.

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