An Increase of Burst Strength and Damage Detection of CFRP Pressure Vessels Reinforced with SMA Fibers

SMA 纤维增强 CFRP 压力容器的爆破强度和损伤检测的提高

• 批准号: 13650102
• 负责人: BEN Goichi
• 金额: $ 1.98万
• 依托单位: Nihon University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650102/
• 关键词: CFRP; Pressure Vessel; Shape Memory Alloy; Burst Strength; Internal Pressure; FEM; Optimum Design; Damage Detection

This research was executed from April, 2001 to March, 2003 in order to increase a burst strength CFRP pressure vessels reinforced with SMA fibers and to establish a convenient method of damage detection in the vessels. Through this study, the main research results were obtained as follows.1. In order to examine an effect of SMA fibers memorized compressive strain, an isotropic aluminum tube was tested under an internal pressure. The failure strain on the aluminum tube reinforced with SMA fibers was 66% larger than one without SMA fibers and this result showed the effect of SMA fibers on an increase of the burst strain and strength in the aluminum pipe.2. In a case of CFRP pipes, the effect of SMA fibers on their burst strength was also confirmed but the increase of burst strength depends on the orientation angles of CFRP and SMA fibers. As a result, some optimum angles give the maximum burst strength of CFRP pipes reinforced with SMA fibers.3. The CFRP pressure vessel was reinforced wi … More th SMA fibers which were memorized compressive strain over their temperature of transformation. Its strains of the pressure vessels was smaller than one of the pressure vessels without the SMA fibers and than one of vessels with SMA fibers not using memorized compressive strain.4. The performance of 1.0mm diameter of SMA fibers was better than one of 0.5mm diameter. The maximum internal pressure of CFRP vessel which was reinforced with 1.0 mm diameter of SMA fibers memorized compressive strain showed an increase of 25.5 % compared with one of vessel without SMA fibers. This result means a primary object of this research5. The FEM analysis was formulated and the result obtained by the FEM agreed with the experimental result. This FEM analysis is able to use for searching the optimum orientation angles of CFRP and SMA fibers in design of CFRP pressure vessels reinforced with SMA fibers and for detecting internal damage in the CFRP pressure vessels reinforced with SMA fibers.These results were presented as an invited lecture in the 2002 spring conference of the Korean Society for Composite Materials and were also presented in the conferences of domestic academic societies Less

为了提高SMA纤维增强CFRP压力容器的破裂强度，建立一种方便的容器损伤检测方法，于2001年4月至2003年3月进行了研究。通过本研究，获得的主要研究成果如下：1。为了考察SMA纤维记忆压缩应变的效果，对各向同性铝管进行了内压试验。加SMA纤维增强铝管的破坏应变比不加SMA纤维增强铝管的破坏应变大66%，说明SMA纤维对铝管破裂应变和强度的提高有一定的作用。以CFRP管为例，也证实了SMA纤维对其破裂强度的影响，但破裂强度的增加取决于CFRP和SMA纤维的取向角度。结果表明，某些最佳角度给出了SMA纤维增强CFRP管的最大爆裂强度。在CFRP压力容器中加入了更多的SMA纤维，这些SMA纤维可以记忆其变形温度下的压缩应变。其压力容器应变小于未使用SMA纤维的压力容器应变，也小于未使用SMA纤维的压力容器应变。直径为1.0mm的SMA纤维性能优于直径为0.5mm的SMA纤维。用直径1.0 mm的SMA纤维增强CFRP容器，其最大内压记忆压缩应变比不加SMA纤维的容器提高了25.5%。这一结果意味着本研究的主要对象。进行了有限元分析，所得结果与试验结果吻合较好。该有限元分析方法可用于SMA纤维增强CFRP压力容器设计中寻找CFRP与SMA纤维的最佳取向角，并可用于SMA纤维增强CFRP压力容器的内部损伤检测。这些成果在2002年韩国复合材料学会春季会议上作为特邀演讲发表，并在国内学术团体会议上发表

项目成果

G. Ben, K. Manabe: "Increase of Burst Strength of pressure vessel reinforced with SMA"Proceedings of 31th FRP symposium of the Society of Mater. Science. 23-24 (2002)

G. Ben，K. Manabe：“SMA ​​增强压力容器爆破强度的提高”材料学会第 31 届 FRP 研讨会论文集。

太田 浩, 邉 吾一, 青木義男他: "SMAで補強されたCFRP圧力容器の耐圧強度"日本材料学会第32回FRPシンポジウム講演論文集. 149-150 (2003)

Hiroshi Ota、Goichi Bei、Yoshio Aoki 等人：“SMA ​​增强 CFRP 压力容器的压力强度”日本材料科学学会第 32 届 FRP 研讨会论文集 149-150 (2003)。

G. Ben: "Application of CFRP to Automobile Structural Element (Invited Lecture)"Spring Conference of the Korean Society for Composite Materials. (2002)

G. Ben：“CFRP在汽车结构件中的应用（特邀报告）”韩国复合材料学会春季会议。

邉 吾一, 真鍋賢史他: "形状記憶合金補強による圧力容器の耐圧強度の向上"日本材料学会第31回FRPシンポジウム講演論文集. 23-24 (2002)

Goichi Bei、Satoshi Manabe 等人：“通过增强形状记忆合金提高压力容器的耐压性”日本材料学会第 31 届 FRP 研讨会论文集 23-24 (2002)。

Goichi Ben: "Applications of CFRP to Automobile Structural Elements (invited Lecture)"2002 Spring Confer.of the Korea Society for Composite Materials. (2002)

Goichi Ben：“CFRP 在汽车结构件中的应用（特邀报告）”2002 年韩国复合材料学会春季会议。