Patch Repair and Structural Health Monitoring of Fatigue-Cracked Aging Aircraft Panels

疲劳裂纹老化飞机面板的修补和结构健康监测

• 批准号: 13555264
• 负责人: SEKINE Hideki
• 金额: $ 8.38万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13555264/
• 关键词: Aging Aircraft Structure; Safety; Repair Technology; FRP Patch Repair; Structural Health Monitoring; Simulation of Damage Extension; Identification of Damage; Strain Measuring Sensor System; ヘルスモニタリング; 複合パッチ接着補修; 経年航空機構造パネル; 複合材パッチによる接着補修; 損傷の

Developing the repair technology of aging aircraft structures has been desired to extend the service life of aging aircraft. In this research project, the repair technology using bonded fiber-reinforced polymer (FRP) composite patches has been investigated from the viewpoint of structural health monitoring of repaired aircraft structural panels. The main results are summarized as follows :1.Based on a two-dimensional FEM and a three-dimensional combined FEM/BEM, the numerical simulation method of the fatigue crack growth behavior in cracked aircraft structural panels repaired with a bonded FRP composite patch was presented.2.The method for identifying the locations and shapes of fatigue crack and disbond fronts in repaired aircraft structural panels was presented.3.The strain measuring sensor system using fiber Bragg grating (FBG) sensors installed on the patch surface was developed.4.Based on a nonlinear mathematical programming method, the design system of the FRP composite patches was developed.5.The issues in practical use of repair technology were examined, and the feasibility study was made.

需要开发老化飞机结构的维修技术，以延长衰老飞机的使用寿命。在该研究项目中，已经从修复飞机结构面板的结构健康监测的角度研究了使用粘合纤维增强聚合物（FRP）复合贴片的维修技术。主要结果总结如下：1。基于二维的FEM和三维组合的FEM/BEM，这是破裂的飞机结构面板中疲劳裂纹生长行为的数值模拟方法，该结构面板用粘合的FRP复合贴片修复。开发了安装在贴片表面上的纤维布拉格光栅（FBG）传感器的传感器系统。4。基于非线性数学编程方法，开发了FRP复合贴片的设计系统。

项目成果

S.Fujimoto: "Numerical Investigation of Structural Health Monitoring of Cracked Metallic Aircraft Structural Panels Repaired with a Bonded FRP Composite Patch"ICCM-14. 2154. 1-9 (2003)

S.Fujimoto：“用粘合 FRP 复合材料补丁修复的破裂金属飞机结构面板的结构健康监测数值研究”ICCM-14。

Identification of Location and Shape of Fatigue Crack Fronts in Aircraft Structural Panels Repaired with a Bonded FRP Composite Patch Containing a Strain Measurement Plane

识别用含有应变测量平面的粘合 FRP 复合材料补片修复的飞机结构面板中疲劳裂纹前沿的位置和形状

• 发表时间: 2004
• 期刊: Journal of the Japan Society for Aeronautical and Space Sciences Vol.52, No.607
• 作者: S.Fujimoto

A Framework for Understanding Damage Development in Structural Composites : Modelling the Failure Processes

理解结构复合材料损伤发展的框架：失效过程建模

• 发表时间: 2004
• 期刊: The 11th US-Japan Conference on Composite Materials
• 作者: P.W.R.Beaumont

Damage Identification of Laminated Composite Plates Using Piezoelectric Sensors

使用压电传感器识别层压复合板的损伤

• 发表时间: 2001
• 期刊: Proceedings of the 3^<nd> International workshop on Structural Health Monitoring
• 作者: H.Fukunaga

藤元伸悦: "FRP複合材パッチで接着補修されたアルミニウム合金パネル内を進展するき裂の同定"日本複合材料学会2002年度研究発表講演会予稿集. (2002)

Nobuyoshi Fujimoto：“用 FRP 复合材料修补的铝合金板中裂纹扩展的识别”日本复合材料学会 2002 年研究演示会议论文集（2002 年）。