Identifying Different Types of Defects in Butt-Welded Steel Plates using Acoustic Emission Technique
Conference: Publication Date: 16 March 2015Testing Method:
Welding defects can create a catastrophic failure in industrial equipment and pressure vessels during service. Monitoring of weld quality is considered a crucial part of any component risk assessment procedure or life cycle determination process. Acoustic Emission (AE) technique is an effective in-service method that is implemented in nondestructive evaluation and monitoring of large structural components. In this research, a laboratory scale investigation was performed in an attempt to identify different types of defects presented in seam welds. Carbon steel plates with three different types of weld defects (i.e. porosity, slag and lack of fusion) were characterized nondestructively using the AE technique. The changes in the AE properties generated from Pencil Lead Break (PLB) showed increase in the energy of AE activity in specimens with slag defects. The results showed that the AE technique could be used only to identify and monitor different types of welding defects qualitatively. The specimens with slag defect have showed the most influence on the AE signatures, followed by the existence of porosity and lack of fusion respectively. Further investigation should be carried out on different shapes and positions of defects along with different welded materials. This will provide further understanding of using AE method as an inspection and monitoring technique for welding defects.
- Bullough, R., R.E. Dolby, and Beardsmore D.W., The Porosity bability of formation and detection of large flaws in welds. International Journal of Pressure Vessels and Piping, 2007. 84: p. 730-738.
- Gayer, A., A. Saya, and A. Shiloh, Automatic recognition of welding defects in real-time radiography. NDT International, 1990. 23(3): p. 131-136.
- LOPEZ, B. Weld Inspection with EMAT Using Guided Waves. The e-Journal of Nondestructive Testing, 2008.
- Kita, A., Measurement of Weld Penetration Depth Using Non-Contact Ultrasound Methods, in Mechanical Engineering. 2005, Georgia Institute of Technology: USA.
- Lancon, B., Circumferential Scanning in Ultrasonic Inspection. The NDT Technician, 2012. 11(1): p. 1-4.
- Hayes, C., The ABC's of Nondestructive Weld Examination. The Welding Journal, 1997. 76(5): p. 46-51.
- García-Martín, J., J. Gómez-Gil, and E. Vázquez-Sánchez, Review: Non-Destructive Techniques Based on Eddy Current Testing. Sensors, 2011. 11: p. 2525-2565.
- Reimche, W., R. Duhm, and S. Zwoch. evelopment and qualification of a process-oriented nondestructive test method for weld joints to operate with remote field eddy current technique. in 9th European Conference on Non- Destructive Testing (ECNDT). 2006. Berlin, 2006.
- ASTM, Standard Terminology for Nondestructive Examinations, in ASTM E1316 - 14. 2014, ASTM: USA.
- Colombo, S., et al., AE energy analysis on concrete bridge beams. Materials and Structures 2005. 38: p. 851-856.
- Shehadeh, M., et al., A Study of Pipeline Leakage pattern Using CFD. Canadian Journal on Mechanical Sciences & Engineering, 2012. 3(3).
- Shehadeh, M.F., M. Abdel Geliel, and A. El-Araby. Buckling detection within subsea pipeline laying using Acoustic Emission Technique. in 29th European Conference on Acoustic Emission Testing (EWGAE). 2010. Vienna, Austria.
- Abdel-Geliel, M., M.F. Shehadeh, and A. El-Araby. Pipeline bending detection using Acoustic Emission system. in 17th International congress on sound and vibration (ICSV). 2010. Cairo, Egypt.
- Lackner, G. and P. Tscheliesnig, Acoustic Emission Testing on Flat-Bottomed Storage Tanks: How to Condense Acquired Data to A Reliable Statement Regarding Floor Condition. Journal of Acoustic Emission, 2002. 20: p. 179- 187.
- Shehadeh, M., et al., Aspects of Acoustic Emission Attenuation in Steel Pipes Subject to Different Internal and External Environments. Mechanical Engineers, Part E: Journal of Process Mechanical, 2008. 222(1): p. 41-54.
- ASTM, Standard Guide for Determining the Reproducibility of Acoustic Emission Sensor Response, in ASTM E976 - 10. 2010, ASTM: USA.
- El-Shaib, M., Predicting acoustic emission attenuation in solids using ray-tracing within a 3D solid model, in Mechanical Engineering 2013, Heriot-Watt University: Edinburgh, UK.
- Shehadeh, M., J. Steel, and R. Reuben, Acoustic Emission Source Location for Steel pipe and Pipeline Applications: The Role of Arrival Time Estimation. Mechanical Engineers, Part E: Journal of Process Mechanical. 220(2): p. 121-133.
- Bremaecker, J., Transmission and reflection of Rayleigh waves at corners. Geophysic, 1958. 23(2): p. 253-266.
95 Page Views
0 PDF Downloads
0 Facebook Shares