Non-Destructive Testing for Crack Detection in the Concrete Cylinder Structures Using Electromagnetic Waves with FDTD
2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026, Michigan, Amerika Birleşik Devletleri, 12 - 17 Temmuz 2026, ss.1450-1451, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/ap-s/usnc-ursi60190.2026.11675298
- Basıldığı Şehir: Michigan
- Basıldığı Ülke: Amerika Birleşik Devletleri
- Sayfa Sayıları: ss.1450-1451
- Kırklareli Üniversitesi Adresli: Evet
Özet
Concrete structures may contain various defects due to environmental factors such as humidity and temperature, exposure to sudden energy changes such as earthquakes, or degradation occurring over time. Cracks do not possess a definite or fixed geometric shape due to their natural formation processes. A concrete structure does not consist solely of concrete; reinforcement, mortar, pavement, and masonry elements may also be present, together with concrete. Moreover, in environments with very high humidity, composite materials may be used in combination with concrete in pile construction. Considering these conditions, radar and microwave non-destructive testing (NDT) techniques are employed to simulate concrete-filled Fiber Reinforced Polymer (FRP) tubes and concrete piles containing defects such as delamination, cracks, and voids. Delaminations resulting from external factors are modeled as realistically as possible. To simulate electromagnetic wave propagation within a concrete cylinder, the Finite-Difference Time-Domain (FDTD) method with a Perfectly Matched Layer (PML) absorbing boundary condition (ABC) is used. The operating frequencies used in the simulations are 1.5 GHz, 3.0 GHz, and 6.0 GHz.