To investigate the effect of basalt fiber on the fracturing process and damage mechanism of cement-based materials under axial compression, acoustic emission (AE) signals associated with basalt fiber reinforced mortar (BFRM) with 5 kinds of volume content (0–2.0%) under axial compression were recorded. The statistical analysis of wavelet energy spectrum coefficient and wavelet decomposition coefficient was carried out after threshold de-noising and noise evaluation of original signals by discrete wavelet transform (DWT) based on Mallat algorithm. Results show that the axial compressive strength and the acoustic emission activities decrease with the increase of fiber content. During the fracturing process of basalt fiber reinforced mortar under axial compression, the major energy frequency band concentrates on ca7 (seventh decomposition layers, 0–19.5 kHz), cd5 (fifth decomposition layers, 78–156 kHz) and cd4 (fourth decomposition layers, 156–312.5 kHz) bands corresponding to the wavelet transform. The wavelet energy spectrum coefficient of ca7 and cd4 bands shows distinct phased characteristics, which can be used to identify the damage degree, while the sudden increase in that of cd6 band can serve as a final failure precursor of the specimen. The variation of wavelet energy spectrum coefficient of ca7 and cd4 bands can be used to evaluate the crack resistance of basalt fiber. The maximum wavelet decomposition coefficient and the number of wavelet decomposition coefficient can be used to identify the degree of damage. The statistical analysis of wavelet energy spectrum coefficient and wavelet decomposition coefficient provides an innovative idea for evaluating internal damage of cement-based materials.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Shen Rongxi, Cui Qi, and Li Qinghai, New Fiber Reinforced Cementitious Composites, China Archit. & Build. Press, 2004.
Huang, T., Zhang, Y.X., Su, C., et al., Effect of slip-hardening interface behavior on fiber rupture and crack bridging in fiber-reinforced cementitious composites, J. Eng. Mech., 2015, vol. 141, no. 10, article ID 04015035.
Soulioti, D., Barkoula, N.M., Paipetis, A., et al., Acoustic emission behavior of steel fibre reinforced concrete under bending, Constr. Build. Mater., 2009, vol. 23, no. 12, pp. 3532–3536.
Rudresh, B.M., Kumar, B.N.R., and Lingesh, B.V., Fibridization effect on the mechanical behavior of PA66/PTFE blend based fibrous composites, Trans. Indian Inst. Met., 2017, vol. 70, no. 10, pp. 2683–2694.
Zhao, Y.R., Wang, L., Lei, Z.K., et al., Experimental study on dynamic mechanical properties of the basalt fiber reinforced concrete after the freeze-thaw based on the digital image correlation method, Constr. Build. Mater., 2017, vol. 147, pp. 194–202.
Dias, D.P. and Thaumaturgo, C., Fracture toughness of geopolymeric concretes reinforced with basalt fibers, Cem. Concr. Compos., 2005, vol. 27, no. 1, pp. 49–54.
Dong, J.Q., Mechanical properties of basalt fiber reinforced concrete at low cycle impact, Appl. Mech. Mater., 2012, vols. 174–177, pp. 1524–1527.
Sadrmomtazi, A., Tahmouresi, B., and Saradar, A., Effects of silica fume on mechanical strength and microstructure of basalt fiber reinforced cementitious composites (BFRCC), Constr. Build. Mater., 2018, vol. 162, pp. 321–333.
Demirci, M.T., Tarakçıoğlu, N., Avcı, A., et al., Fracture toughness (Mode I) characterization of SiO2, nanoparticle filled basalt/epoxy filament wound composite ring with split-disk test method, Composites, Part B, 2017, vol. 119, pp. 114–124.
Zhang, H., Wang, B., Xie, A.Y., et al., Experimental study on dynamic mechanical properties and constitutive model of basalt fiber reinforced concrete, Constr. Build. Mater., 2017, vol. 152, pp. 154–167.
Yun, H.D., Choi, W.C., and Seo, S.Y., Acoustic emission activities and damage evaluation of reinforced concrete beams strengthened with CFRP sheets, NDT & E Int., 2010, vol. 43, no. 7, pp. 615–628.
Wang, Y., Chen, S.J., Xu, Z.Z., et al., Damage processes of steel fiber reinforced mortar in different fiber content revealed by acoustic emission behavior, J. Wuhan Univ. Technol., 2018, vol. 54, no. 1, pp. 55–64.
Dan, L.I., Jun-Lin, T., Ning, W., et al., Research on acoustic emission characteristics for basalt fiber reinforced concrete during flexural impact tests, J. Wuhan Univ. Technol., 2013, vol. 35, no. 4, pp. 84–89.
Kencanawati, N.N. and Shigeishi, M. Acoustic emission hit generation behavior of basalt fiber high strength mortar under compression, Appl. Mech. Mater., 2014, vol. 493, pp. 678–683.
Yan, W., Jie, C.S., Lu, G., et al., Characterization of the damage process of polypropylene fiber mortar at medium loading rate by the full wave acoustic emission technique, Russ. J. Nondestr. Test., 2018, vol. 54, no. 6, pp. 430–442.
Yan, W., Jie, C.S., Li, Z., Zhi, C.Y., Xiang, H.H., and Lu, G., Full curve damage process of polypropylene fiber reinforced mortars under dynamic tensile loading based on acoustic emission technique, Russ. J. Nondestr. Test., 2018, vol. 54, no. 7, pp. 495–509.
Hunzeker, J.T., Damage characterization of polymer-based composite materials: Multivariable analysis and wavelet transform for clustering acoustic emission data and experimental investigations on non-linear slow dynamics of damaged materials, Mech. Syst. Signal Process., 2008, vol. 22, no. 6, pp. 1441–1464.
Zhao, L., Kang, L., et al., Research and application of acoustic emission signal processing technology, IEEE ACCESS, 2019, vol. 7, pp. 984–993.
Liu, X., Liang, Z., Zhang, Y., et al., Acoustic emission signal recognition of different rocks using wavelet transform and artificial neural network, Shock Vib., 2015, 846308, pp. 1–14.
Stepanova, L.N., Petrova, E.S., and Chernova, V.V., Strength tests of a CFRP spar using methods of acoustic emission and tensometry, Russ. J. Nondestr. Test., 2018, vol. 54, no. 4, pp. 243–248.
Rinkevich, A.B. and Perov, D.V., A wavelet analysis of acoustic fields and signals in ultrasonic nondestructive testing, Russ. J. Nondestr. Test., 2005, vol. 41, no. 2, pp. 93–101.
Wang, Y., Chen, S.J., Liu, S.J., et al., Best wavelet basis for wavelet transforms in acoustic emission signals of concrete damage process, Russ. J. Nondestr. Test., 2016, vol. 52, no. 3, pp. 125–133.
Wang, Y., Chen, S.J., Ge, L., et al., The optimal wavelet threshold de-nosing method for acoustic emission signals during the medium strain rate damage process of concrete, Nondestr. Test. Eval., 2017, vol. 32, no. 4, pp. 400–417.
Baccar, D. and Söffker, D., Identification and classification of failure modes in laminated composites by using a multivariate statistical analysis of wavelet coefficients, Mech. Syst. Signal Process., 2017, vol. 96, pp. 77–87.
Xie, T., et al., Acoustic emission characteristics of rock failure under uniaxial loading, Adv. Mater. Res., 2012, vols. 378–379, pp. 43–46.
This work was supported by the Fundamental Research Funds for the Central Universities (no. 2019B13114).
About this article
Cite this article
Wang Yan, Chao, Y., Na, W. et al. Experimental Study on Damage Mechanism of Basalt Fiber Reinforced Mortar Based on Acoustic Emission Wavelet Energy Spectrum Analysis. Russ J Nondestruct Test 56, 318–327 (2020). https://doi.org/10.1134/S1061830920040105
- basalt fiber reinforced mortar
- acoustic emission
- wavelet energy spectrum coefficient
- wavelet decomposition coefficient
- wavelet threshold denoising