A Novel Methodology to Obtain the Mechanical Properties of Membranes by Means of Dynamic Tests
A new, non-destructive methodology is proposed in this work in order to determine the mechanical properties of membrane using vibro-acoustic tests. This procedure is based on the dynamic analysis of the behavior of the membrane. When the membrane is subjected to a sound excitation it responds by vib...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Membranes |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-0375/12/3/288 |
| _version_ | 1797445211053359104 |
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| author | Antonia Lima-Rodriguez Jose Garcia-Manrique Wei Dong Antonio Gonzalez-Herrera |
| author_facet | Antonia Lima-Rodriguez Jose Garcia-Manrique Wei Dong Antonio Gonzalez-Herrera |
| author_sort | Antonia Lima-Rodriguez |
| collection | DOAJ |
| description | A new, non-destructive methodology is proposed in this work in order to determine the mechanical properties of membrane using vibro-acoustic tests. This procedure is based on the dynamic analysis of the behavior of the membrane. When the membrane is subjected to a sound excitation it responds by vibrating based on its modal characteristics and this modal parameter is directly related to its mechanical properties. The paper is structured in two parts. First, the theoretical bases of the test are presented. The interaction between the sound waves and the membrane (mechano-acoustic coupling) is complex and requires meticulous study. It was broadly studied by means of numerical simulations. A summary of this study is shown. Aspects, such as the position of the sound source, the measuring points, the dimensions of the membrane, the frequency range, and the magnitudes to be measured, among others, were evaluated. The validity of modal analysis curve-fitting techniques to extract the modal parameter from the data measures was also explored. In the second part, an experimental test was performed to evaluate the validity of the method. A membrane of the same material with three different diameters was measured with the aim of estimating the value of the Young’s modulus. The procedure was applied and satisfactory results were obtained. Additionally, the experiment shed light on aspects that must be taken account in future experiments. |
| first_indexed | 2024-03-09T13:22:29Z |
| format | Article |
| id | doaj.art-81efbfa0cc294c46bde95a1d16a1d736 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-09T13:22:29Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-81efbfa0cc294c46bde95a1d16a1d7362023-11-30T21:28:18ZengMDPI AGMembranes2077-03752022-03-0112328810.3390/membranes12030288A Novel Methodology to Obtain the Mechanical Properties of Membranes by Means of Dynamic TestsAntonia Lima-Rodriguez0Jose Garcia-Manrique1Wei Dong2Antonio Gonzalez-Herrera3Department of Civil Engineering, Materials and Manufacturing, School of Engineering, University of Malaga, C/Arquitecto Francisco Peñalosa 6, 29071 Malaga, SpainDepartment of Civil Engineering, Materials and Manufacturing, School of Engineering, University of Malaga, C/Arquitecto Francisco Peñalosa 6, 29071 Malaga, SpainVA Loma Linda Healthcare System and Department of Otolaryngology—Head & Neck Surgery, Loma Linda University Health, 11234 Anderson St., Loma Linda, CA 92354, USADepartment of Civil Engineering, Materials and Manufacturing, School of Engineering, University of Malaga, C/Arquitecto Francisco Peñalosa 6, 29071 Malaga, SpainA new, non-destructive methodology is proposed in this work in order to determine the mechanical properties of membrane using vibro-acoustic tests. This procedure is based on the dynamic analysis of the behavior of the membrane. When the membrane is subjected to a sound excitation it responds by vibrating based on its modal characteristics and this modal parameter is directly related to its mechanical properties. The paper is structured in two parts. First, the theoretical bases of the test are presented. The interaction between the sound waves and the membrane (mechano-acoustic coupling) is complex and requires meticulous study. It was broadly studied by means of numerical simulations. A summary of this study is shown. Aspects, such as the position of the sound source, the measuring points, the dimensions of the membrane, the frequency range, and the magnitudes to be measured, among others, were evaluated. The validity of modal analysis curve-fitting techniques to extract the modal parameter from the data measures was also explored. In the second part, an experimental test was performed to evaluate the validity of the method. A membrane of the same material with three different diameters was measured with the aim of estimating the value of the Young’s modulus. The procedure was applied and satisfactory results were obtained. Additionally, the experiment shed light on aspects that must be taken account in future experiments.https://www.mdpi.com/2077-0375/12/3/288membrane characterizationexperimentfinite element model |
| spellingShingle | Antonia Lima-Rodriguez Jose Garcia-Manrique Wei Dong Antonio Gonzalez-Herrera A Novel Methodology to Obtain the Mechanical Properties of Membranes by Means of Dynamic Tests Membranes membrane characterization experiment finite element model |
| title | A Novel Methodology to Obtain the Mechanical Properties of Membranes by Means of Dynamic Tests |
| title_full | A Novel Methodology to Obtain the Mechanical Properties of Membranes by Means of Dynamic Tests |
| title_fullStr | A Novel Methodology to Obtain the Mechanical Properties of Membranes by Means of Dynamic Tests |
| title_full_unstemmed | A Novel Methodology to Obtain the Mechanical Properties of Membranes by Means of Dynamic Tests |
| title_short | A Novel Methodology to Obtain the Mechanical Properties of Membranes by Means of Dynamic Tests |
| title_sort | novel methodology to obtain the mechanical properties of membranes by means of dynamic tests |
| topic | membrane characterization experiment finite element model |
| url | https://www.mdpi.com/2077-0375/12/3/288 |
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