Conditioning and elastic nonlinearity in concrete: Separation of damping and phase contributions

Scalerandi, Marco; Bentahar, Mourad; Mechri, Charfeddine

doi:10.1016/j.conbuildmat.2017.11.035

Cited by 29 publications

(12 citation statements)

References 51 publications

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“…configuration. The purpose of testing two different configurations is to make sure the discrete memory of the material does not affect the calculation of the non-linearity parameters [3,23]. For this reason, there was a 24…”

Section: Reproducibility Testmentioning

confidence: 99%

Flipped Accumulative Non-Linear Single Impact Resonance Acoustic Spectroscopy (FANSIRAS): A novel feature extraction algorithm for global damage assessment

Carrión

Genovés

Pérez

et al. 2018

Journal of Sound and Vibration

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High amplitude non-linear acoustic methods have shown great potential for the identification of micro-damage in inhomogeneous materials such as concrete. Usually, these methods evaluate non-linearity parameters related to the hysteretic behaviour from the dependence of the shifts in both frequency and damping on the amplitude of the strain. A deep understanding of the reverberation phenomena has been obtained in order to introduce a novel signal processing approach called FANSIRAS (Flipped Accumulative Non-linear Single Impact Resonance Acoustic Spectroscopy). Traditional acoustic spectroscopy techniques, NIRAS (Non-linear Impact Resonance Acoustic Spectroscopy) and NSIRAS (Non-linear Single Impact Acoustic Spectroscopy), have been analysed and compared with the brand new approach when providing quantitative information related to the degree of micro-cracking in thermal damaged concrete based materials. The new resonance-based algorithm demonstrates that the non-linear non-classical parameters can be determined through a single resonance frequency measurement, obtaining the expected sensitivity to internal damage. Its simplicity and robustness may be important in industrial applications.

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Section: Reproducibility Testmentioning

confidence: 99%

Flipped Accumulative Non-Linear Single Impact Resonance Acoustic Spectroscopy (FANSIRAS): A novel feature extraction algorithm for global damage assessment

Carrión

Genovés

Pérez

et al. 2018

Journal of Sound and Vibration

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“…Indeed, hysteretic elastic nonlinearity (Guyer and Johnson, 2009) is composed of two interlinked effects. Besides FD, i.e., the strain amplitude dependence of the material properties (modulus and damping) described above, Slow Dynamics (SD) is also present (see e.g., Guyer et al, 1999;Tencate et al, 2004;Scalerandi et al, 2010Scalerandi et al, , 2018Lott et al, 2017;Shokouhi et al, 2017). Such effect consists in the time dependence of modulus and damping when the sample is excited at constant strain.…”

Section: Introductionmentioning

confidence: 99%

Exploiting Slow Dynamics Effects for Damage Detection in Concrete

Bentahar

Bella

Mechri

et al. 2020

Front. Built Environ.

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“…System and structural damping are external damping (viscous damping, dry damping, hysteresis damping, nonlinear damping, etc.) [15,16], and material damping is internal damping (medium damping, friction damping, etc.) [17].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Damping Properties of Recycled Aggregate Concrete Modified with Air-Entraining Agent and Polypropylene Fiber

Zhou

Pei

et al. 2020

Materials

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In this study, recycled aggregate concrete (RAC) modified with polypropylene fiber (PP) and air-entraining agent (AGA) was prepared, and the effects of PP and AGA on the static (compressive strength, Young’s modulus, and splitting tensile strength) and dynamic properties (dynamic modulus of elasticity and damping ratio) of RAC were investigated. The experimental results showed that the addition of an AGA and PP had a favorable effect on the damping ratio of the concrete, however, the addition of the AGA had a slightly negative effect on the mechanical performance of the concrete. The AGA and PP contents required to achieve the optimum damping ratio of the concrete with the least reduction in the mechanical performance were 0.02% and 0.10%, respectively. Furthermore, the addition of AGA was more effective than that of PP in improving the damping property of the concrete.

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Conditioning and elastic nonlinearity in concrete: Separation of damping and phase contributions

Cited by 29 publications

References 51 publications

Flipped Accumulative Non-Linear Single Impact Resonance Acoustic Spectroscopy (FANSIRAS): A novel feature extraction algorithm for global damage assessment

Flipped Accumulative Non-Linear Single Impact Resonance Acoustic Spectroscopy (FANSIRAS): A novel feature extraction algorithm for global damage assessment

Exploiting Slow Dynamics Effects for Damage Detection in Concrete

Mechanical and Damping Properties of Recycled Aggregate Concrete Modified with Air-Entraining Agent and Polypropylene Fiber

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