期刊
COMPOSITES PART B-ENGINEERING
卷 79, 期 -, 页码 494-504出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2015.05.016
关键词
Carbon-carbon composites (CCCs); Impact behavior; Bladder molding; Hat shaped tube
资金
- National Natural Science Foundation of China [51205422]
- Pearl River Nova Program of Guangzhou [2014J2200005]
- Dongguan Municipal Science and Technology Program [2012108102020]
- Science Fund of State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body [31315009]
This paper aims to explore the dynamic responses and crashing characteristics of double hat shaped tubes made of weave carbon fiber reinforced plastic (CFRP). Experimental investigations were carried out into three different thicknesses and lengths of the composite tubes fabricated by the bladder molding process. Three distinct failure modes, classified as progressive end crushing, mid-length collapse and overlap opening, were observed in the dynamic crushing tests. Unlike continuous splaying fronds observed in the quasi-static tests, dynamic tests exhibited a number of fragment segments in the progressive end crushing mode. It is shown that the ply number was a critical parameter affecting the failure mode and energy absorption capability. The increase in ply number led to increases in the peak load and specific energy absorption (SEA); whereas the tubal length seemed insensitive to energy absorption capability. Compared to the quasi-static cases, the dynamic impact tests resulted in the higher peak load (increased from 46 % to 125 %) and lower SEA (reduced from 21 % to 33 %) for the tested tubes. (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据