... of the mechanical properties. Also, defects such as porosity or cracks could be caused by non-optimized printing parameters. In order avoid wasting of sample while inferring mechanical properties of the printed material, it beneficial to utilize the nondestructive evaluation (NDE) methods. Implementation of NDE...

.... NDE in-line monitoring additive manufacturing ultrasonic testing wire-arc additive manufacturing (WAAM) hot-wire GTAW ULTRASONIC NONDESTRUCTIVE TESTING FOR IN-LINE MONITORING OF WIRE-ARC ADDITIVE MANUFACTURING (WAAM) MD Shahjahan Hossain1, Hossein Taheri Department of Manufacturing Engineering...

...-printed part in situ using air-coupled ultrasonic transducers and similar ultrasonic NDE technologies. 3D printing FDM NDE ultrasonic SIMULATIONS OF ONLINE NON-DESTRUCTIVE ACOUSTIC DIAGNOSIS OF 3D-PRINTED PARTS USING AIR-COUPLED ULTRASONIC TRANSDUCERS Sean Rooney Stevens Institute...

... be transferred from one constituent to the other through some interface. If there is little or no bond at the interface then there is little or no transfer of stress and therefore poor composite action. In this study, we intend to develop a NDE tool for evaluating such interfacial bond conditions. Attention...

... 31 03 2008 The problem of ultrasonic nondestructive evaluation (NDE) of inhomogeneous prestress field is studied theoretically for an elastic material and plane strain. The nonlinear effects of ultrasonic wave propagation and interaction are shown to be additional sources...

... to detect various types of damages present in complex geometry structures typical of space applications. Keywords: NDE, ultrasonic, Lamb waves, crack, corrosion, disbond, PWAS INTRODUCTION Structural health monitoring (SHM) is an emerging research area with multiple applications. SHM assesses the state...

... 31 01 2008 The stress state testing and evaluation is the major concern in early damage testing. The metal magnetic memory (MMM) testing, based on ferromagnetic theory, is a new NDE technology that can find the most serious stress concentration zones, microscopic defect, etc. However...