Interaction of the shear horizontal bend guided mode (SHB) with transverse cracks

Prabhakaran Manogharan; Xudong Yu; Zheng Fan; Prabhu Rajagopal

doi:10.1016/j.phpro.2015.08.069

Interaction of the shear horizontal bend guided mode (SHB) with transverse cracks

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

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

Abstract

Recent research by the authors has revealed the presence of shear horizontal-type of feature-guided (SH_B) waves in plates with 90° transverse bends. The SH_B mode is non-dispersive and has low attenuation over a range of higher frequencies (500 kHz - 1 MHz). This mode is attractive for Non-destructive Evaluation (NDE) of bends in practical structures such as aerospace spar joints. Here the interaction of the SH_B mode with transverse small-width notches (cracks) running across bends in plates is studied using 3D finite element simulations and validated by experiments. For through-thickness cracks, the influence of transverse crack length on SH_B mode reflection is studied. For part-depth but long cracks (transverse length greater than operating wavelength), influence of crack depth on mode reflection is studied. The results demonstrate the potential of the SH_B mode for NDE of bent plate structures.

Original language	English
Pages (from-to)	656-659
Number of pages	4
Journal	Physics Procedia
Volume	70
DOIs	https://doi.org/10.1016/j.phpro.2015.08.069
State	Published - 2015
Externally published	Yes
Event	ICU International Congress on Ultrasonics, ICU 2015 - Metz, France Duration: 11 May 2015 → 14 May 2015

Keywords

Bend Guided Mode
SHB
Transverse Crack

Access to Document

10.1016/j.phpro.2015.08.069

Cite this

@article{6333948ece69407a992f9f67991bb8d0,

title = "Interaction of the shear horizontal bend guided mode (SHB) with transverse cracks",

abstract = "Recent research by the authors has revealed the presence of shear horizontal-type of feature-guided (SHB) waves in plates with 90° transverse bends. The SHB mode is non-dispersive and has low attenuation over a range of higher frequencies (500 kHz - 1 MHz). This mode is attractive for Non-destructive Evaluation (NDE) of bends in practical structures such as aerospace spar joints. Here the interaction of the SHB mode with transverse small-width notches (cracks) running across bends in plates is studied using 3D finite element simulations and validated by experiments. For through-thickness cracks, the influence of transverse crack length on SHB mode reflection is studied. For part-depth but long cracks (transverse length greater than operating wavelength), influence of crack depth on mode reflection is studied. The results demonstrate the potential of the SHB mode for NDE of bent plate structures.",

keywords = "Bend Guided Mode, SHB, Transverse Crack",

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

note = "Publisher Copyright: {\textcopyright} 2015 The Authors.; ICU International Congress on Ultrasonics, ICU 2015 ; Conference date: 11-05-2015 Through 14-05-2015",

year = "2015",

doi = "10.1016/j.phpro.2015.08.069",

language = "英语",

volume = "70",

pages = "656--659",

journal = "Physics Procedia",

issn = "1875-3884",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Interaction of the shear horizontal bend guided mode (SHB) with transverse cracks

AU - Manogharan, Prabhakaran

AU - Yu, Xudong

AU - Fan, Zheng

AU - Rajagopal, Prabhu

PY - 2015

Y1 - 2015

N2 - Recent research by the authors has revealed the presence of shear horizontal-type of feature-guided (SHB) waves in plates with 90° transverse bends. The SHB mode is non-dispersive and has low attenuation over a range of higher frequencies (500 kHz - 1 MHz). This mode is attractive for Non-destructive Evaluation (NDE) of bends in practical structures such as aerospace spar joints. Here the interaction of the SHB mode with transverse small-width notches (cracks) running across bends in plates is studied using 3D finite element simulations and validated by experiments. For through-thickness cracks, the influence of transverse crack length on SHB mode reflection is studied. For part-depth but long cracks (transverse length greater than operating wavelength), influence of crack depth on mode reflection is studied. The results demonstrate the potential of the SHB mode for NDE of bent plate structures.

AB - Recent research by the authors has revealed the presence of shear horizontal-type of feature-guided (SHB) waves in plates with 90° transverse bends. The SHB mode is non-dispersive and has low attenuation over a range of higher frequencies (500 kHz - 1 MHz). This mode is attractive for Non-destructive Evaluation (NDE) of bends in practical structures such as aerospace spar joints. Here the interaction of the SHB mode with transverse small-width notches (cracks) running across bends in plates is studied using 3D finite element simulations and validated by experiments. For through-thickness cracks, the influence of transverse crack length on SHB mode reflection is studied. For part-depth but long cracks (transverse length greater than operating wavelength), influence of crack depth on mode reflection is studied. The results demonstrate the potential of the SHB mode for NDE of bent plate structures.

KW - Bend Guided Mode

KW - SHB

KW - Transverse Crack

UR - https://www.scopus.com/pages/publications/84948704834

U2 - 10.1016/j.phpro.2015.08.069

DO - 10.1016/j.phpro.2015.08.069

M3 - 会议文章

AN - SCOPUS:84948704834

SN - 1875-3884

VL - 70

SP - 656

EP - 659

JO - Physics Procedia

JF - Physics Procedia

T2 - ICU International Congress on Ultrasonics, ICU 2015

Y2 - 11 May 2015 through 14 May 2015

ER -

Interaction of the shear horizontal bend guided mode (SHB) with transverse cracks

Abstract

Keywords

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