Skip to Main content Skip to Navigation
Poster communications

Substitution of spruce tonewood with composite materials tailored using numerical models: an application to archtop guitar *

Abstract : Stringed instrument making traditionally requires selected wooden materials, called tonewood. Numerous species are used, especially spruce and maple for domestic species and rosewood, ebony, mahogany and per-nambuco for tropical ones. Nowadays, the shortage of sufficiently large trees as well as the impact of climate change has led to current and future supply issues. Multilateral treaties to protect endangered wood species are now including several of the above mentioned species, and may include more in the future. In parallel, during the last decade, composite materials made with natural fibres have increasingly been studied and used. The bio-based composites associate fibres from annually renewable sources and bulk wood cores with epoxy resin to create materials that exhibit adjustable mechanical properties. The long-term objective of this work is to demonstrate that such materials can be tailored to mimic the vibro-acoustical behaviour of tonewoods and seen as a sustainable solution. In this study, numerical models of stringed instruments are used to optimize the architecture of bio-based composites to copy the dynamic behaviour of a spruce archtop guitar soundboard. The dynamic response of the manufactured composite parts are measured and compared to the model predictions in order to validate the model-based recipes of composites.
Document type :
Poster communications
Complete list of metadatas

https://hal.sorbonne-universite.fr/hal-02361970
Contributor : Claudia Fritz <>
Submitted on : Friday, December 6, 2019 - 5:57:08 PM
Last modification on : Wednesday, January 8, 2020 - 1:49:50 AM

Identifiers

  • HAL Id : hal-02361970, version 1

Citation

Romain Viala, Claudia Fritz, Vincent Placet, Emmanuel Foltete, Scott Cogan. Substitution of spruce tonewood with composite materials tailored using numerical models: an application to archtop guitar *. ISMA, Sep 2019, Detmold, Germany. ⟨hal-02361970⟩

Share

Metrics

Record views

28