Detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging
Joints in aero-mechanical structures are critical elements that ensure the structural integrity but they are prone to damages. Inspection of such joints that have no prior baseline data is really challenging but it can be possibly done using the Ultrasonic Propagation Imager (UPI). The feasibility o...
| Main Authors: | , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IOP Publishing
2017
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/61409/1/Detection%20of%20fastener%20loosening%20in%20simple%20lap%20joint%20.pdf |
| _version_ | 1825932332592267264 |
|---|---|
| author | Gooda Sahib, Muhammad Isfaaq Leong, Shii Jang Chia, Chen Ciang Mustapha, Faizal |
| author_facet | Gooda Sahib, Muhammad Isfaaq Leong, Shii Jang Chia, Chen Ciang Mustapha, Faizal |
| author_sort | Gooda Sahib, Muhammad Isfaaq |
| collection | UPM |
| description | Joints in aero-mechanical structures are critical elements that ensure the structural integrity but they are prone to damages. Inspection of such joints that have no prior baseline data is really challenging but it can be possibly done using the Ultrasonic Propagation Imager (UPI). The feasibility of applying UPI for detection of loosened fastener is investigated in this study. A simple lap joint specimen made by connecting two pieces of 2.5mm thick SAE304 stainless steel plates using five M6 screws and nuts has been used in this study. All fasteners are tightened to 10Nm but one of them is completely loosened to simulate the damage. The wavefield data is processed into ultrasonic wavefield propagation video and a series of spectral amplitude images. The spectral images showed noticeable amplitude difference at the loosened fastener, hence confirmed the feasibility of using UPI for structural joints inspection. A simple contrast maximization method is also introduced to improve the result. |
| first_indexed | 2024-03-06T09:40:25Z |
| format | Conference or Workshop Item |
| id | upm.eprints-61409 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:40:25Z |
| publishDate | 2017 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | upm.eprints-614092018-10-09T06:23:00Z http://psasir.upm.edu.my/id/eprint/61409/ Detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging Gooda Sahib, Muhammad Isfaaq Leong, Shii Jang Chia, Chen Ciang Mustapha, Faizal Joints in aero-mechanical structures are critical elements that ensure the structural integrity but they are prone to damages. Inspection of such joints that have no prior baseline data is really challenging but it can be possibly done using the Ultrasonic Propagation Imager (UPI). The feasibility of applying UPI for detection of loosened fastener is investigated in this study. A simple lap joint specimen made by connecting two pieces of 2.5mm thick SAE304 stainless steel plates using five M6 screws and nuts has been used in this study. All fasteners are tightened to 10Nm but one of them is completely loosened to simulate the damage. The wavefield data is processed into ultrasonic wavefield propagation video and a series of spectral amplitude images. The spectral images showed noticeable amplitude difference at the loosened fastener, hence confirmed the feasibility of using UPI for structural joints inspection. A simple contrast maximization method is also introduced to improve the result. IOP Publishing 2017 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/61409/1/Detection%20of%20fastener%20loosening%20in%20simple%20lap%20joint%20.pdf Gooda Sahib, Muhammad Isfaaq and Leong, Shii Jang and Chia, Chen Ciang and Mustapha, Faizal (2017) Detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging. In: AEROS Conference 2017, 12 Dec. 2017, Shangri-La Hotel, Putrajaya, Malaysia. (pp. 1-7). http://iopscience.iop.org/article/10.1088/1757-899X/270/1/012035 10.1088/1757-899X/270/1/012035 |
| spellingShingle | Gooda Sahib, Muhammad Isfaaq Leong, Shii Jang Chia, Chen Ciang Mustapha, Faizal Detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging |
| title | Detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging |
| title_full | Detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging |
| title_fullStr | Detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging |
| title_full_unstemmed | Detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging |
| title_short | Detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging |
| title_sort | detection of fastener loosening in simple lap joint based on ultrasonic wavefield imaging |
| url | http://psasir.upm.edu.my/id/eprint/61409/1/Detection%20of%20fastener%20loosening%20in%20simple%20lap%20joint%20.pdf |
| work_keys_str_mv | AT goodasahibmuhammadisfaaq detectionoffastenerlooseninginsimplelapjointbasedonultrasonicwavefieldimaging AT leongshiijang detectionoffastenerlooseninginsimplelapjointbasedonultrasonicwavefieldimaging AT chiachenciang detectionoffastenerlooseninginsimplelapjointbasedonultrasonicwavefieldimaging AT mustaphafaizal detectionoffastenerlooseninginsimplelapjointbasedonultrasonicwavefieldimaging |