Acoustic emission characterization of the fracture process in steel fiber reinforced concrete

다국어 초록 (Multilingual Abstract)

The correlation between the characteristics of acoustic emission signals and the strength parameters of concretes is investigated by combining the acoustic emission (AE) technique and steel fiber reinforced concrete (SFRC). By means of AE detection system, three kinds of steel fibers of varying content were used as reinforcement in concrete and their influence on the fracture process and the acoustic activity was considered in this paper. Analysis of the AE test results revealed that for different steel fiber contents, the role of steel fiber is different. Concave-convex steel fiber has an inhibitory effect on the control of crack expansion. Bow steel fiber has a better effect on the control of crack propagation when the fiber content is lower. The compressive strength of SFRC decrease when bow steel fiber content rises. Ultra-short can prevent early cracks of concrete.

참고문헌 (Reference)

1 Wu, K.R, "Study on the AE characteristics of fracture process of mortar, concrete and steel-fiber-reinforced concrete beams" 30 (30): 1495-1500, 2000

2 Shah, A.A, "Recent trends in steel fibered high-strength concrete" 32 (32): 4122-4151, 2011

3 Bentahar, M, "Monitoring progressive damage in polymer based composite using nonlinear dynamics and acoustic emission" 125 (125): EL39-EL44, 2009

4 Aggelis, D. G, "Monitoring of the mechanical behavior of concrete with chemically treated steel fibers by acoustic emission" 48 : 1255-1260, 2013

5 Carpinteri, A, "Heterogeneous materials in compression:Correlations between absorbed, released and acoustic emission energies" 33 : 236-250, 2013

6 Fu, C.Q, "Fracture property of steel fiber reinforced concrete at early age" 13 (13): 31-47, 2014

7 Alam, S. Y, "Fracture examination in concrete through combined digital image correlation and acoustic emission techniques" 69 (69): 232-242, 2014

8 Ohtsu, M, "Damage assessment of reinforced concrete beams qualified by acoustic emission" 99 (99): 411-417, 2002

9 Carpinteri, A, "Cracking and crackling in concrete-like materials: A dynamic energy balance" 155 : 130-144, 2016

10 Colombo Ing, S, "Assessing damage of reinforced concrete beam using ‘‘b-value” analysis of acoustic emission signals" 15 (15): 280-286, 2003

11 Aggelis, D. G, "Acoustic emission characterization of the fracture process in fibre reinforced concrete" 25 (25): 4126-4131, 2011

12 Aggelis, D. G., "Acoustic emission characterization of steel fibre reinforced concrete during bending" Spin-intSoc Optical Engineering 764912 : 2010

13 Soulioti, D, "Acoustic emission behavior of steel fibre reinforced concrete under bending" 23 (23): 3532-3536, 2009

14 S. Gholizadeh, "A review of the application of acoustic emission technique in engineering" 국제구조공학회 54 (54): 1075-1095, 2015

15 Sagar, R.V, "A review of recent development in parametric based acoustic emission techniques applied to concrete structures" 27 (27): 47-68, 2012

16 Siracusano, G, "A framework for the damage evaluation of acoustic emission signals through Hilbert-Huang transform" 75 : 109-122, 2016