Abstract Rail monitoring is an important activity which aims to preserve the safety and availability of railways. According statistics, primary cause railway accidents due transverse defects that occur in rail head. These special develop generally a plane orthogonal running direction. The detection these priority increase transportation. control techniques mostly rely on infrared thermography, ...

This paper presents a data fusion method between the results of ultrasound using phased array at 5MHz frequency and those obtained through eddy current examination at 1-10MH frequency. The obtained results are compared with destructive tests, a very good correlation being obtained. The effects of delamination over the properties of CFRP are studied using dynamic mechanical analyzer, emphasizing...

Weld overlay of piping was first used as a method to repair components of simple configurations which were known to contain cracking. An adequate ultrasonic examination of these geometries can be achieved by using a few conventional search units. Currently the application of pre-emptive weld overlays as a mitigation technique and/or to improve the examination surface condition for more complex ...

Comprehensive and accurate inspections of welded components have become of increasing importance as NASA develops new hardware such as Ares rocket segments for future exploration missions. Simulation and modeling will play an increasing role in the future for nondestructive evaluation in order to better understand the physics of the inspection process, to prove or disprove the feasibility for a...