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.

发展飞机老龄结构的维修技术，是延长老龄飞机使用寿命的迫切需要。在本研究项目中，使用粘接纤维增强聚合物（FRP）复合材料补片的修复技术已被研究的角度来看，修复飞机结构面板的结构健康监测。主要结果总结如下：1.基于二维有限元和三维有限元/边界元，提出了FRP复合材料补片修补飞机结构裂纹板疲劳裂纹扩展行为的数值模拟方法; 2.提出了确定修补后飞机结构裂纹和脱粘前缘位置和形状的方法; 3.研制了安装在补片表面的光纤光栅应变传感器系统; 4.基于非线性数学规划方法，5.对修复技术在实际应用中存在的问题进行了分析，并进行了可行性研究。

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

Effective Three-Dimensional Finite Element Analysis and Optimum Design of Composite Patch for Repairing Structural Panels

用于修复结构板的复合补片的有效三维有限元分析和优化设计

• 发表时间: 2002
• 期刊: JSME International Journal, Series A 45・4
• 作者: H.Sekine