Effects of Frequency, Temperature and Test Duration in the Viscoelasticity of Brazilian Hardwoods Used in Handmade Musical Instruments

This study aims to make a comprehensive analysis on the viscoelastic behavior of typical tropical hardwoods and its influences in making musical instruments. For that a Dynamic-Mechanical Analysis was done and the mechanical parameters dependence on test control parameters like temperature, frequenc...

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Main Authors: Júlio Ortiz Amando de Barros, Rodolfo Politano
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2019-10-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700250&tlng=en
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author Júlio Ortiz Amando de Barros
Rodolfo Politano
author_facet Júlio Ortiz Amando de Barros
Rodolfo Politano
author_sort Júlio Ortiz Amando de Barros
collection DOAJ
description This study aims to make a comprehensive analysis on the viscoelastic behavior of typical tropical hardwoods and its influences in making musical instruments. For that a Dynamic-Mechanical Analysis was done and the mechanical parameters dependence on test control parameters like temperature, frequency and test duration time were measured. For Dalbergia Nigra the final value of Module of Elasticity (MOE) was 17551.0MPa and 0.022020 for tangent delta (tg(δ)), but a great variation in those parameters was observed during the tests, for all species the MOE increases and tg(δ) decreases, even with constant temperatures, which may be caused by water loss. Besides that, a discussion was made relating the obtained data and historical knowledge about the usages of the studied woods for musical instruments manufacture, and density was shown as the main variable for that purpose.
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spelling doaj.art-5a63ba41a41a4aefbdb487468035482e2022-12-21T19:34:52ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392019-10-0122suppl 110.1590/1980-5373-mr-2019-0190Effects of Frequency, Temperature and Test Duration in the Viscoelasticity of Brazilian Hardwoods Used in Handmade Musical InstrumentsJúlio Ortiz Amando de Barroshttps://orcid.org/0000-0001-6991-2794Rodolfo PolitanoThis study aims to make a comprehensive analysis on the viscoelastic behavior of typical tropical hardwoods and its influences in making musical instruments. For that a Dynamic-Mechanical Analysis was done and the mechanical parameters dependence on test control parameters like temperature, frequency and test duration time were measured. For Dalbergia Nigra the final value of Module of Elasticity (MOE) was 17551.0MPa and 0.022020 for tangent delta (tg(δ)), but a great variation in those parameters was observed during the tests, for all species the MOE increases and tg(δ) decreases, even with constant temperatures, which may be caused by water loss. Besides that, a discussion was made relating the obtained data and historical knowledge about the usages of the studied woods for musical instruments manufacture, and density was shown as the main variable for that purpose.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700250&tlng=enBrazilian HardwoodsDynamic-Mechanical Analysis of WoodViscoelasticity of Wood
spellingShingle Júlio Ortiz Amando de Barros
Rodolfo Politano
Effects of Frequency, Temperature and Test Duration in the Viscoelasticity of Brazilian Hardwoods Used in Handmade Musical Instruments
Materials Research
Brazilian Hardwoods
Dynamic-Mechanical Analysis of Wood
Viscoelasticity of Wood
title Effects of Frequency, Temperature and Test Duration in the Viscoelasticity of Brazilian Hardwoods Used in Handmade Musical Instruments
title_full Effects of Frequency, Temperature and Test Duration in the Viscoelasticity of Brazilian Hardwoods Used in Handmade Musical Instruments
title_fullStr Effects of Frequency, Temperature and Test Duration in the Viscoelasticity of Brazilian Hardwoods Used in Handmade Musical Instruments
title_full_unstemmed Effects of Frequency, Temperature and Test Duration in the Viscoelasticity of Brazilian Hardwoods Used in Handmade Musical Instruments
title_short Effects of Frequency, Temperature and Test Duration in the Viscoelasticity of Brazilian Hardwoods Used in Handmade Musical Instruments
title_sort effects of frequency temperature and test duration in the viscoelasticity of brazilian hardwoods used in handmade musical instruments
topic Brazilian Hardwoods
Dynamic-Mechanical Analysis of Wood
Viscoelasticity of Wood
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700250&tlng=en
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