Ultrasonic based method for damage identification in composite materials

B. S. Ben; B. A. Ben; Ch Ratnam; S. H. Yang

doi:10.1007/s10999-012-9196-4

Ultrasonic based method for damage identification in composite materials

B. S. Ben, B. A. Ben, Ch Ratnam, S. H. Yang

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We present an ultrasonic-based Lamb wave propagation method for identifying and measuring the damage location in a material as a basis for structural health monitoring (SHM). Lamb waves can propagate in a structure via mode conversion and reflection from the surfaces of the structure, and can lead to interference patterns as a resulting wave vector propagates along the structure. We determined the experimental and analytical effects of various parameters on the sensitivity of damage detection. A methodology is proposed for estimating and measuring the location of damage in test specimens. An experimental setup is used for generating Ao- Lamb waves by calibrating ultrasonic pulse generation for optimal values of parameters. Materials with different damage levels are tested in their undamaged and damaged conditions, and the effects of the parameters on the generated waves in test specimens are observed experimentally.

Original language	English
Pages (from-to)	297-309
Number of pages	13
Journal	International Journal of Mechanics and Materials in Design
Volume	8
Issue number	4
DOIs	https://doi.org/10.1007/s10999-012-9196-4
State	Published - Dec 2012

Keywords

Damage detection
Lamb waves
Propagation parameters
Structural health monitoring

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10.1007/s10999-012-9196-4

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title = "Ultrasonic based method for damage identification in composite materials",

abstract = "We present an ultrasonic-based Lamb wave propagation method for identifying and measuring the damage location in a material as a basis for structural health monitoring (SHM). Lamb waves can propagate in a structure via mode conversion and reflection from the surfaces of the structure, and can lead to interference patterns as a resulting wave vector propagates along the structure. We determined the experimental and analytical effects of various parameters on the sensitivity of damage detection. A methodology is proposed for estimating and measuring the location of damage in test specimens. An experimental setup is used for generating Ao- Lamb waves by calibrating ultrasonic pulse generation for optimal values of parameters. Materials with different damage levels are tested in their undamaged and damaged conditions, and the effects of the parameters on the generated waves in test specimens are observed experimentally.",

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AU - Ben, B. S.

AU - Ben, B. A.

AU - Ratnam, Ch

AU - Yang, S. H.

PY - 2012/12

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N2 - We present an ultrasonic-based Lamb wave propagation method for identifying and measuring the damage location in a material as a basis for structural health monitoring (SHM). Lamb waves can propagate in a structure via mode conversion and reflection from the surfaces of the structure, and can lead to interference patterns as a resulting wave vector propagates along the structure. We determined the experimental and analytical effects of various parameters on the sensitivity of damage detection. A methodology is proposed for estimating and measuring the location of damage in test specimens. An experimental setup is used for generating Ao- Lamb waves by calibrating ultrasonic pulse generation for optimal values of parameters. Materials with different damage levels are tested in their undamaged and damaged conditions, and the effects of the parameters on the generated waves in test specimens are observed experimentally.

AB - We present an ultrasonic-based Lamb wave propagation method for identifying and measuring the damage location in a material as a basis for structural health monitoring (SHM). Lamb waves can propagate in a structure via mode conversion and reflection from the surfaces of the structure, and can lead to interference patterns as a resulting wave vector propagates along the structure. We determined the experimental and analytical effects of various parameters on the sensitivity of damage detection. A methodology is proposed for estimating and measuring the location of damage in test specimens. An experimental setup is used for generating Ao- Lamb waves by calibrating ultrasonic pulse generation for optimal values of parameters. Materials with different damage levels are tested in their undamaged and damaged conditions, and the effects of the parameters on the generated waves in test specimens are observed experimentally.

KW - Damage detection

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KW - Propagation parameters

KW - Structural health monitoring

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Ultrasonic based method for damage identification in composite materials

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