Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission


  • N Bunnori
  • N Nor
  • K Jiun
  • S Kudus



The acoustic emission technique is used for monitoring the fatigue failure mechanisms in reinforced concrete beam under three point bending. The analysis was conducted by using the bathtub curve method plotted from acoustic emission data. In this study, the fatigue behavior was divided into three stages. The first stage is involved with the decreasing failure rate, known as early life failure or burn-in phase, the second stage is characterized by constant failure rate and the third stage is called the burn-out phase which is an increase of failure rate. The three parameters used in analyzing is the fatigue behavior for each stage of failure which are severity, signal strength and the cumulative signal strength. From severity analysis, the range of each stage of failure had been determined while from signal strength analysis, the initiation of distribution of crack had been detected through the fluctuation of signal strength. Cumulative signal strength parameter provides a clearer view of the initiation and distribution of crack.


Degala, S., Rizzo, P., Ramanathan, K. and Harries, K. A. Acoustic emission monitoring of CFRP reinforced concrete slabs, Construction and Building Material, 2009, Vol. 23, pp. 2016-2026.

Wilcox, P. D., Lee, C. K., Scholey, J. J., Friswell, M. I., Wisnom, M. R. and Drinkwater, B. W. Quantitative structural health monitoring using acoustic emission, 13th SPIE Symposium on Smart Structures and Materials, 2006.

Grecory C., Steven D. and Christian U. Beamforming Array Techniques for Acoustic Emission Monitoring of Large Concrete Structures, Journal of Sound and Vibration, 2010, Vol 329, pp. 2384-2394.

Shah, S. G. and Chandra Kishen, J. M. Use of acoustic emissions in flexural fatigue crack growth studies on concrete, Engineering Fracture Mechanics, 2012, Vol. 87, pp. 36-47.

Antonaci, P., Bocca, P. and Masera, D. Fatigue crack propagation monitoring by Acoustic Emission signal analysis, Engineering Fracture Mechanics, 2012, Vol. 81, pp. 26-32.

Md Nor, N., Ibrahim, A., Muhamad Bunnori, N. and Saman, H. Acoustic emission signal for fatigue crack classification on reinforced concrete beam, Construction and Building Materials, 2013, Vol 49, pp. 583-590.

Md Nor, N., Ibrahim, A., Muhamad Bunnori, N., Mohd Saman, H., Mat Saliah, S. N. and Shahidan, S. Diagnostic of fatigue damage severity on reinforced concrete beam using acoustic emission technique, Engineering Failure Analysis, 2013, pp. 1-9.

Toumi, A., Bascoul, A. and Turatsinze, A. Crack propagation in concrete subjected to flexural- cyclic loading, Materials and Structures, 1998, Vol 31, p.451-458.

Deng, Z. The fracture and fatigue performance in flexure of carbon fiber reinforced concrete, Cement and Concrete Composites, 2005, Vol 27, p. 131-140.

Nair, A. and Cai, C. S. Acoustic emission monitoring of bridges: Review and case studies, Engineering Structures, 2010, Vol. 32, pp. 1704-1714.

BS8110: Part1: 1985, British Standard: Structural use of concrete; Part 1, Code of practice for design and construction, British Standards Institution, 1985.

ASTM, E.-. Standard Guide for Determining the Reproducibility of Acoustic Emission Sensor Response, Non Destructive Testing Standard, 2005.



How to Cite

Bunnori, N., Nor, N., Jiun, K. and Kudus, S. (2014) “Analysis of failure mechanisms in fatigue test of reinforced concrete beam utilizing acoustic emission”, The International Journal of Multiphysics, 8(4), pp. 349-358. doi: 10.1260/1750-9548.8.4.349.