This paper presents a microwave antenna sensor that has the ability to monitor fatigue cracks between lap joints where compressive force is present or in any other areas where a crack is hidden between two parts of a structure. The sensor is designed to be low profile, light weight, and conformal, making it ideal for aerospace applications where lap joints are a common design feature, and thus minimizing manual inspection times. The design of the fatigue sample for simulating a lap joint will be presented. The experiment results validated the microwave antenna sensor’s capability to effectively monitor fatigue cracks under lap joints.
- Aerospace Division
Microwave Antenna Sensors for Fatigue Crack Monitoring Under Lap Joints
Erdmann, J, Deshmukh, S, & Huang, H. "Microwave Antenna Sensors for Fatigue Crack Monitoring Under Lap Joints." Proceedings of the ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2. Philadelphia, Pennsylvania, USA. September 28–October 1, 2010. pp. 619-625. ASME. https://doi.org/10.1115/SMASIS2010-3744
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