Experimental and numerical investigations on the dispersion behaviors of wedge waves propagating along wedges with bilinear cross sections

Che Hua Yang; Chun Zen Tsen

doi:10.1016/j.ultras.2006.05.147

Experimental and numerical investigations on the dispersion behaviors of wedge waves propagating along wedges with bilinear cross sections

Che Hua Yang^*, Chun Zen Tsen

^*Corresponding author for this work

Department of Mechanical Engineering

Chang Gung University

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

6 Scopus citations

Abstract

Wedge waves (WW) are guided acoustic waves propagating along the tip of a wedge, with energy tightly confined near the apex. This study is focused on exploring the dispersion behaviors of WW propagating along a bilinear wedge (BW). A BW is wedge with a cross section of two apex angles, compared with a linear wedge (LW) having a single apex angle. In the literature, many studies regarding to the dispersion behaviors of ASF modes are reported for LW, but not for BW. In this study, a combined experimental and numerical stidy is used to investigate the dispersion behavior of WW propagating in BW's. It is found out that WW in a BW is a result of mode coupling between the two WW's corresponding to simple wedges with the two apex angles of the BW.

Original language	English
Pages (from-to)	e1471-e1474
Journal	Ultrasonics
Volume	44
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/j.ultras.2006.05.147
State	Published - 22 12 2006

Keywords

Bilinear wedge
Dispersion
Laser ultrasound technique
Mode coupling

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10.1016/j.ultras.2006.05.147

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title = "Experimental and numerical investigations on the dispersion behaviors of wedge waves propagating along wedges with bilinear cross sections",

abstract = "Wedge waves (WW) are guided acoustic waves propagating along the tip of a wedge, with energy tightly confined near the apex. This study is focused on exploring the dispersion behaviors of WW propagating along a bilinear wedge (BW). A BW is wedge with a cross section of two apex angles, compared with a linear wedge (LW) having a single apex angle. In the literature, many studies regarding to the dispersion behaviors of ASF modes are reported for LW, but not for BW. In this study, a combined experimental and numerical stidy is used to investigate the dispersion behavior of WW propagating in BW's. It is found out that WW in a BW is a result of mode coupling between the two WW's corresponding to simple wedges with the two apex angles of the BW.",

keywords = "Bilinear wedge, Dispersion, Laser ultrasound technique, Mode coupling",

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T1 - Experimental and numerical investigations on the dispersion behaviors of wedge waves propagating along wedges with bilinear cross sections

AU - Yang, Che Hua

AU - Tsen, Chun Zen

PY - 2006/12/22

Y1 - 2006/12/22

N2 - Wedge waves (WW) are guided acoustic waves propagating along the tip of a wedge, with energy tightly confined near the apex. This study is focused on exploring the dispersion behaviors of WW propagating along a bilinear wedge (BW). A BW is wedge with a cross section of two apex angles, compared with a linear wedge (LW) having a single apex angle. In the literature, many studies regarding to the dispersion behaviors of ASF modes are reported for LW, but not for BW. In this study, a combined experimental and numerical stidy is used to investigate the dispersion behavior of WW propagating in BW's. It is found out that WW in a BW is a result of mode coupling between the two WW's corresponding to simple wedges with the two apex angles of the BW.

AB - Wedge waves (WW) are guided acoustic waves propagating along the tip of a wedge, with energy tightly confined near the apex. This study is focused on exploring the dispersion behaviors of WW propagating along a bilinear wedge (BW). A BW is wedge with a cross section of two apex angles, compared with a linear wedge (LW) having a single apex angle. In the literature, many studies regarding to the dispersion behaviors of ASF modes are reported for LW, but not for BW. In this study, a combined experimental and numerical stidy is used to investigate the dispersion behavior of WW propagating in BW's. It is found out that WW in a BW is a result of mode coupling between the two WW's corresponding to simple wedges with the two apex angles of the BW.

KW - Bilinear wedge

KW - Dispersion

KW - Laser ultrasound technique

KW - Mode coupling

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DO - 10.1016/j.ultras.2006.05.147

M3 - 文章

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SN - 0041-624X

VL - 44

SP - e1471-e1474

JO - Ultrasonics

JF - Ultrasonics

IS - SUPPL.

ER -

Experimental and numerical investigations on the dispersion behaviors of wedge waves propagating along wedges with bilinear cross sections

Abstract

Keywords

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