The role of embedded bioinspired vasculature on damage formation in self-healing carbon fibre reinforced composites
The role of embedded bioinspired vasculature on damage formation in self-healing carbon fibre reinforced composites
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DOI：
10.1016/j.compositesa.2011.02.003
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发表时间：
2011-06-01
影响因子：
8.7
通讯作者：
Trask, R. S.
中科院分区：
文献类型：
--
作者：
Norris, C. J.;Bond, I. P.;Trask, R. S.
本文介绍了成功地将生物启发血管纳入碳纤维增强环氧树脂复合材料层压板的设计考虑。能够将功能剂从外部储库递送到内部损伤区域的脉管系统潜在地为宿主结构提供自主的自我修复功能，而不会引起质量损失。在纤维结构方面，最大限度地减少对主层压板的破坏是成功实施这种技术的关键。两个脉管制造技术证明。所产生的有效内部缺陷的特点是沿着与10 J的损坏事件，确定通过非破坏性的C扫描和压缩后的冲击测试协议。血管直径，方向和接口位置的影响也被考虑。血管方向被认为是控制因素，在保持压缩性能方面，无论使用的制造路线。然而，所采用的制造路线对冲击损伤的形态和随后的血管损伤连接性起着重要作用，这是自我修复的先决条件。(C)2011爱思唯尔有限公司保留所有权利。
This paper presents the design considerations for successful incorporation of bioinspired vascules into a carbon fibre-reinforced epoxy composite laminate. A vasculature capable of delivering functional agents from an external reservoir to regions of internal damage potentially offers the host structure an autonomous self-healing function without incurring a mass penalty. Minimising disruption to the host laminate, in terms of fibre architecture, is key to the successful implementation of such a technology. Two vascule fabrication techniques are demonstrated. The resulting effective internal defects are characterised along with their interaction with a 10J damage event, determined via non-destructive C-scanning and a compression after impact test protocol. The effects of vascule diameter, orientation and interface location are also considered. Vascule orientation was found to be the controlling factor, in terms of maintaining compression performance, regardless of the fabrication route used. However, the fabrication route adopted plays a significant role on the morphology of the impact damage and subsequent vascule-damage connectivity, a pre-requisite for self-healing. (C) 2011 Elsevier Ltd. All rights reserved.