Assessment of eSHM system combining different NDT methods

A new concept of structural health monitoring, the effective Structural Health Monitoring (eSHM) system, has the potential to improve life safety and decrease the direct operational cost. The basic physical principle of the eSHM system is checking the absolute fluid pressure changes in a 3D-curved network of capillaries that are integrated with 3D printing. A pressure change in the capillary indicates the presence of a crack. The main objective of this study is to evaluate the eSHM system and the crack location by means of various Non-Destructive Testing techniques (NDT). In this approach, liquid penetrant inspection, eddy current, radiography and acoustic emission were used in order to confirm the damage and indicate the damage location on unnotched four-point bending metallic beams with an integrated eSHM system. Prior to this study, those beams have been subjected to four-point-bending fatigue testing and they are damaged as detected by the eSHM system. It will be shown that the eSHM system in a combination with NDT can provide accurate information on the damage condition of 3D printed metals.

ISBN:978-1-138-02884-5

Jaar van publicatie:2016