ANALYSIS OF SIDE RATIO EFFECT ON PROPAGATION OF ULTRASONIC GUIDED WAVES IN A BAR WITH RECTANGULAR SECTION

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RAFIEI MORTEZA; NADERAN TAHAN KHOSRO

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Journal: JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR) Year:2016 | Volume:48 | Issue:2 Page(s): 187-196

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Title

ANALYSIS OF SIDE RATIO EFFECT ON PROPAGATION OF ULTRASONIC GUIDED WAVES IN A BAR WITH RECTANGULAR SECTION

Author(s)

RAFIEI MORTEZA | NADERAN TAHAN KHOSRO | Issue Writer Certificate

Keywords

ULTRASONIC GUIDED WAVESQ2

PHASE VELOCITYQ2

GROUP VELOCITYQ2

BARQ2

RECTANGULAR SECTIONQ2

Abstract

In this research side ratio effect of ULTRASONIC GUIDED WAVES in a BAR with rectangular cross section is investigated and wave structure is calculated and plotted. The motion of ULTRASONIC GUIDED WAVES in the mentioned BAR is considered as a three dimensional problem. In the homogenous equation system that is obtained to satisfy stress free surface boundary conditions, the ratios determinant of this system should equal zero. So, the frequency equation is obtained. The real roots of this equation are extracted and frequency spectrum, phase and GROUP VELOCITY diagrams and wave structure for longitudinal, torsional and bending waves are plotted by a written computer program by Matlab. Increasing cross section BAR side ratio shows when the frequency increases the longitudinal and torsional waves PHASE VELOCITY decreases and bending waves PHASE VELOCITY increases. Also, for some modes replacing particles on the BAR surface is considerable and for some others is negligible.

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APA: Copy

RAFIEI, MORTEZA, & NADERAN TAHAN, KHOSRO. (2016). ANALYSIS OF SIDE RATIO EFFECT ON PROPAGATION OF ULTRASONIC GUIDED WAVES IN A BAR WITH RECTANGULAR SECTION. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), 48(2), 187-196. SID. https://sid.ir/paper/165918/en

Vancouver: Copy

RAFIEI MORTEZA, NADERAN TAHAN KHOSRO. ANALYSIS OF SIDE RATIO EFFECT ON PROPAGATION OF ULTRASONIC GUIDED WAVES IN A BAR WITH RECTANGULAR SECTION. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR)[Internet]. 2016;48(2):187-196. Available from: https://sid.ir/paper/165918/en

IEEE: Copy

MORTEZA RAFIEI, and KHOSRO NADERAN TAHAN, “ANALYSIS OF SIDE RATIO EFFECT ON PROPAGATION OF ULTRASONIC GUIDED WAVES IN A BAR WITH RECTANGULAR SECTION,” JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), vol. 48, no. 2, pp. 187–196, 2016, [Online]. Available: https://sid.ir/paper/165918/en

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