Interaction of shear horizontal bend (SHB) guided mode with defects

Prabhakaran Manogharan; Xudong Yu; Zheng Fan; Prabhu Rajagopal

doi:10.1016/j.ndteint.2015.06.004

Interaction of shear horizontal bend (SH_B) guided mode with defects

Prabhakaran Manogharan
, Xudong Yu
, Zheng Fan
, Prabhu Rajagopal^*

^*Corresponding author for this work

Indian Institute of Technology Madras
Nanyang Technological University

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

28 Scopus citations

Abstract

The authors have recently reported on the attractive properties of shear-horizontal type feature guided (SH_B) waves for the inspection of 90° plate bends. Further to this, here the interaction of the SH_B mode with transverse and longitudinal defects in the bend region is studied using 3D finite element simulations validated by experiments. Trends are discussed in light of the underlying wave mechanics principles. The results show that the SH_B mode yields improved through-thickness defect resolution capabilities as compared to regular plate guided SH waves in view of mode confinement and higher frequencies used.

Original language	English
Pages (from-to)	39-47
Number of pages	9
Journal	NDT and E International
Volume	75
DOIs	https://doi.org/10.1016/j.ndteint.2015.06.004
State	Published - 20 Jul 2015
Externally published	Yes

Keywords

Bend-guided SH waves
Feature-guided modes
Wave scattering

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10.1016/j.ndteint.2015.06.004

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title = "Interaction of shear horizontal bend (SHB) guided mode with defects",

abstract = "The authors have recently reported on the attractive properties of shear-horizontal type feature guided (SHB) waves for the inspection of 90° plate bends. Further to this, here the interaction of the SHB mode with transverse and longitudinal defects in the bend region is studied using 3D finite element simulations validated by experiments. Trends are discussed in light of the underlying wave mechanics principles. The results show that the SHB mode yields improved through-thickness defect resolution capabilities as compared to regular plate guided SH waves in view of mode confinement and higher frequencies used.",

keywords = "Bend-guided SH waves, Feature-guided modes, Wave scattering",

author = "Prabhakaran Manogharan and Xudong Yu and Zheng Fan and Prabhu Rajagopal",

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doi = "10.1016/j.ndteint.2015.06.004",

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T1 - Interaction of shear horizontal bend (SHB) guided mode with defects

AU - Manogharan, Prabhakaran

AU - Yu, Xudong

AU - Fan, Zheng

AU - Rajagopal, Prabhu

PY - 2015/7/20

Y1 - 2015/7/20

N2 - The authors have recently reported on the attractive properties of shear-horizontal type feature guided (SHB) waves for the inspection of 90° plate bends. Further to this, here the interaction of the SHB mode with transverse and longitudinal defects in the bend region is studied using 3D finite element simulations validated by experiments. Trends are discussed in light of the underlying wave mechanics principles. The results show that the SHB mode yields improved through-thickness defect resolution capabilities as compared to regular plate guided SH waves in view of mode confinement and higher frequencies used.

AB - The authors have recently reported on the attractive properties of shear-horizontal type feature guided (SHB) waves for the inspection of 90° plate bends. Further to this, here the interaction of the SHB mode with transverse and longitudinal defects in the bend region is studied using 3D finite element simulations validated by experiments. Trends are discussed in light of the underlying wave mechanics principles. The results show that the SHB mode yields improved through-thickness defect resolution capabilities as compared to regular plate guided SH waves in view of mode confinement and higher frequencies used.

KW - Bend-guided SH waves

KW - Feature-guided modes

KW - Wave scattering

UR - https://www.scopus.com/pages/publications/84937210946

U2 - 10.1016/j.ndteint.2015.06.004

DO - 10.1016/j.ndteint.2015.06.004

M3 - 文章

AN - SCOPUS:84937210946

SN - 0963-8695

VL - 75

SP - 39

EP - 47

JO - NDT and E International

JF - NDT and E International

ER -

Interaction of shear horizontal bend (SH_B) guided mode with defects

Abstract

Keywords

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