Author:
Stanciu M D,Bârsănescu P,Goanță V,Savin A
Abstract
Abstract
During the playing, the wood from guitar structure is subjected to stresses due to the strings tension. The paper aims to determine the stresses and strain states of wood from guitar structure in different stage of strings tension. So, a classical guitar made from Romanian factory was investigated. For experiment, the method of electrical resistance tensometry was used. On the top of guitar, near of bridge and sound hole were applied two stacked rosette type C2A-06-062WW-350 and two on the neck of guitar. The strings were tensioned to the specific value of producing the musical note. The signals of sensors were captured by Vishay P3 Input Strain Indicator / Recorder. Applying the elasticity theory of orthotropic materials as wood, the main strains and stresses were determined. The results emphasized that tensile and compression stresses are produced in guitar body and the higher values of strains are recorded in the bridge area and in the guitar neck, the 8th fret.
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