Mechanical Behavior of Guitar Neck under Simple Bending Stress Analyzed with Finite Elements Method

This paper presents the results of the FEM analysis of the mechanical behavior of guitar subjected to simple bending. Deformation of guitar neck by string tension constitutes a quality defect of finished product - guitars, which affect the acoustic of instrument. The neck bending modified length guitar strings which leads to obtaining false sounds. Therefore, the aim of the research was to establish the stresses and strains state of the guitar neck in terms of varying the position and force size and contour conditions. It was found that both deflection and stress are maximum values when force is applied on joint area between neck and guitar body. Stiffening of the guitar neck by increasing section or by using stiffer material can conduct to lower displacements, irrespective deformations of guitar neck.