Scattering Attenuation of SH-Waves in Fiber-Reinforced Composites with Partial Imperfectly Bonded Interfaces

The influence of partial imperfectly bonded interfaces between each fiber and the matrix on the scattering attenuation of coherent SH-waves in fiber-reinforced composites is investigated. The imperfection of interfaces is modelled using the spring model, in which the level of imperfection is charact...

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Main Authors: Jun Zhang, Longhai Zeng, Lian Liu
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2018/2341797
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author Jun Zhang
Longhai Zeng
Lian Liu
author_facet Jun Zhang
Longhai Zeng
Lian Liu
author_sort Jun Zhang
collection DOAJ
description The influence of partial imperfectly bonded interfaces between each fiber and the matrix on the scattering attenuation of coherent SH-waves in fiber-reinforced composites is investigated. The imperfection of interfaces is modelled using the spring model, in which the level of imperfection is characterized by a parameter K, which is called the stiffness of the imperfect interfaces. First, the single scattering of SH-waves by a cylindrical fiber with such a partial imperfectly bonded interface to the matrix is formulated and subsequently solved using the collocation point (CP) method. Later on, based on the analysis of the corresponding single scattering problem, effects of several parameters (i.e., frequency of the incident wave, level of imperfection of interfaces, and width of the imperfect interfaces) on the far-field scattering magnitude, scattering cross section, and scattering attenuation coefficients of coherent SH-waves are shown graphically. The potential application of the current results to nondestructive evaluation of interfaces in composites is also discussed.
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series Shock and Vibration
spelling doaj-art-a85ca23a7bd746fa808e7543407abd382025-08-20T02:20:44ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/23417972341797Scattering Attenuation of SH-Waves in Fiber-Reinforced Composites with Partial Imperfectly Bonded InterfacesJun Zhang0Longhai Zeng1Lian Liu2College of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaThe influence of partial imperfectly bonded interfaces between each fiber and the matrix on the scattering attenuation of coherent SH-waves in fiber-reinforced composites is investigated. The imperfection of interfaces is modelled using the spring model, in which the level of imperfection is characterized by a parameter K, which is called the stiffness of the imperfect interfaces. First, the single scattering of SH-waves by a cylindrical fiber with such a partial imperfectly bonded interface to the matrix is formulated and subsequently solved using the collocation point (CP) method. Later on, based on the analysis of the corresponding single scattering problem, effects of several parameters (i.e., frequency of the incident wave, level of imperfection of interfaces, and width of the imperfect interfaces) on the far-field scattering magnitude, scattering cross section, and scattering attenuation coefficients of coherent SH-waves are shown graphically. The potential application of the current results to nondestructive evaluation of interfaces in composites is also discussed.http://dx.doi.org/10.1155/2018/2341797
spellingShingle Jun Zhang
Longhai Zeng
Lian Liu
Scattering Attenuation of SH-Waves in Fiber-Reinforced Composites with Partial Imperfectly Bonded Interfaces
Shock and Vibration
title Scattering Attenuation of SH-Waves in Fiber-Reinforced Composites with Partial Imperfectly Bonded Interfaces
title_full Scattering Attenuation of SH-Waves in Fiber-Reinforced Composites with Partial Imperfectly Bonded Interfaces
title_fullStr Scattering Attenuation of SH-Waves in Fiber-Reinforced Composites with Partial Imperfectly Bonded Interfaces
title_full_unstemmed Scattering Attenuation of SH-Waves in Fiber-Reinforced Composites with Partial Imperfectly Bonded Interfaces
title_short Scattering Attenuation of SH-Waves in Fiber-Reinforced Composites with Partial Imperfectly Bonded Interfaces
title_sort scattering attenuation of sh waves in fiber reinforced composites with partial imperfectly bonded interfaces
url http://dx.doi.org/10.1155/2018/2341797
work_keys_str_mv AT junzhang scatteringattenuationofshwavesinfiberreinforcedcompositeswithpartialimperfectlybondedinterfaces
AT longhaizeng scatteringattenuationofshwavesinfiberreinforcedcompositeswithpartialimperfectlybondedinterfaces
AT lianliu scatteringattenuationofshwavesinfiberreinforcedcompositeswithpartialimperfectlybondedinterfaces