in this paper a new method for nondestructive testing or nondestructive evaluation is proposed for glass-epoxy composite. for this purpose, impact-echo is used to evaluate the properties of composite materials, detecting internal defects and thickness measurement. in the impact-echo method a steel ball impacts on a composite plate and generates stress waves or p-waves which will be transferred ...

A review of the literature on nondestructive methods for objective assessment of maturity in mango was conducted. Most of the research conducted on this topic involved cultivars that are not currently marketed in the USA. A number of promising technologies exist for nondestructive assessment of mango maturity. Future research topics are proposed, with a focus on the mango cultivars that are cur...

Pixel detectors become an integral part of medical imaging, nondestructive testing, space science and particle physics. Sensors that are bump bonded to readout ASICs made from various materials such as GaAs, Si, CdTe, CdZnTe. Current research tends use CdTe/CdZnTe gamma-ray sensors due its high absorption coefficient in the gamma spectrum. With decreasing size pixel pitch, charge diffusion seco...

Introduction The nondestructive, in-situ testing of early-age concrete properties is a crucial point for the progress of many construction projects in the building sector. The application of such techniques can establish e.g. the earliest possible form removal from concrete construction elements, thereby opening highways to traffic or releasing prestress from steel reinforcement with greatest e...

Two nondestructive electromagnetic/magnetic techniques including hysteresis loop and eddy current methodologies have been used to characterize microstructural changes of AISI D2 cold work tool steel as a result of quench and tempering treatments. To measure the fraction retained austenite in quenched microstructure, six specimens were austenitized in the range  of 1000-1130 °C. Samples austenit...