EVALUATION OF STRAIN AND STRESSES STATES OF REINFORCED GUITAR NECK WITH FINITE ELEMENTS METHOD

Abstract

Many guitarists have found that guitar neck deforms due to tensions of the strings during the singing and the relaxation due to internal stress accumulated in the neck structure. This bending of the neck is a defect that affects the sound quality of the guitar. As a result, there are numerous methods of reinforcement of the neck with the metal rods which can be pre-tensioned or can be adjusted. The paper evaluated variants guitar neck reinforcement (rods of circular section, rectangular section, T section). The five alternatives were modeled and were determined the strain and stresses states of the guitar structure for different reinforcement bars applied in different areas of the neck of the guitar. It was found that both shape, material and position of bars from the fingerboard different and leads to smaller displacement of neck. The results may be useful to manufacturers of musical instruments.