Numerical Time-Domain Modeling of Lamb Wave Propagation Using Elastodynamic Finite Integration Technique
This paper presents a numerical model of lamb wave propagation in a homogenous steel plate using elastodynamic finite integration technique (EFIT) as well as its validation with analytical results. Lamb wave method is a long range inspection technique which is considered to have unique future in the...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/434187 |
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| _version_ | 1832561846883713024 |
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| author | Hussein Rappel Aghil Yousefi-Koma Jalil Jamali Ako Bahari |
| author_facet | Hussein Rappel Aghil Yousefi-Koma Jalil Jamali Ako Bahari |
| author_sort | Hussein Rappel |
| collection | DOAJ |
| description | This paper presents a numerical model of lamb wave propagation in a homogenous steel plate using elastodynamic finite
integration technique (EFIT) as well as its validation with analytical results. Lamb wave method is a long range inspection technique which is considered to have unique future in the field of structural health monitoring. One of the main problems facing the lamb wave method is how to choose the most appropriate frequency to generate the waves for adequate transmission capable of properly propagating in the material, interfering with defects/damages, and being received in good conditions. Modern simulation tools based on numerical methods such as finite integration technique (FIT), finite element method (FEM), and boundary element method (BEM) may be used for modeling. In this paper, two sets of simulation are performed. In the first set, group velocities of lamb wave in a steel plate are obtained numerically. Results are then compared with analytical results to validate the simulation. In the second set, EFIT is employed to study fundamental symmetric mode interaction with a surface braking defect. |
| format | Article |
| id | doaj-art-64eb8e00f03142e28d23c868123f8c9a |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-64eb8e00f03142e28d23c868123f8c9a2025-02-03T01:24:02ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/434187434187Numerical Time-Domain Modeling of Lamb Wave Propagation Using Elastodynamic Finite Integration TechniqueHussein Rappel0Aghil Yousefi-Koma1Jalil Jamali2Ako Bahari3Center of Advanced Systems and Technologies (CAST), School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 14399 57131, IranCenter of Advanced Systems and Technologies (CAST), School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 14399 57131, IranDepartment of Mechanical Engineering, Islamic Azad University, Shushtar Branch, Shushtar, IranSchool of Railway Engineering, Iran University of Science and Technology, Tehran 16846 13114, IranThis paper presents a numerical model of lamb wave propagation in a homogenous steel plate using elastodynamic finite integration technique (EFIT) as well as its validation with analytical results. Lamb wave method is a long range inspection technique which is considered to have unique future in the field of structural health monitoring. One of the main problems facing the lamb wave method is how to choose the most appropriate frequency to generate the waves for adequate transmission capable of properly propagating in the material, interfering with defects/damages, and being received in good conditions. Modern simulation tools based on numerical methods such as finite integration technique (FIT), finite element method (FEM), and boundary element method (BEM) may be used for modeling. In this paper, two sets of simulation are performed. In the first set, group velocities of lamb wave in a steel plate are obtained numerically. Results are then compared with analytical results to validate the simulation. In the second set, EFIT is employed to study fundamental symmetric mode interaction with a surface braking defect.http://dx.doi.org/10.1155/2014/434187 |
| spellingShingle | Hussein Rappel Aghil Yousefi-Koma Jalil Jamali Ako Bahari Numerical Time-Domain Modeling of Lamb Wave Propagation Using Elastodynamic Finite Integration Technique Shock and Vibration |
| title | Numerical Time-Domain Modeling of Lamb Wave Propagation Using Elastodynamic Finite Integration Technique |
| title_full | Numerical Time-Domain Modeling of Lamb Wave Propagation Using Elastodynamic Finite Integration Technique |
| title_fullStr | Numerical Time-Domain Modeling of Lamb Wave Propagation Using Elastodynamic Finite Integration Technique |
| title_full_unstemmed | Numerical Time-Domain Modeling of Lamb Wave Propagation Using Elastodynamic Finite Integration Technique |
| title_short | Numerical Time-Domain Modeling of Lamb Wave Propagation Using Elastodynamic Finite Integration Technique |
| title_sort | numerical time domain modeling of lamb wave propagation using elastodynamic finite integration technique |
| url | http://dx.doi.org/10.1155/2014/434187 |
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