Diagnosis of the fabrication process of a sandwich structure with fiber network core by vibration testing

Abstract

The aim of this paper is the fabrication and vibration testing of a sandwich structure including a new core material known as fibre network sandwich material. As fabrication norms for such a material do not exist as such, so the primary goal is to reproduce successfully fibre network sandwich specimens. Enhanced vibration testing diagnoses the quality of the fabrication process. These sandwich materials possess high damping values, making them suitable for vibro-acoustic applications where structural strength is of secondary importance e.g., internal panelling of a helicopter.