Non-destructive testing (NDT) refers to all the test methods, which permit testing or inspection of object without impairing its future usefulness. The aim of NDT is the detection of damages or unwanted irregularities like flaws, inclusions, material loss/degradation and local imperfections in material properties. Active infrared thermography is a nondestructive evaluation technique in which ma...

Application of Ground Penetrating Radar (GPR) in tree trunk internal defects test is technically a Non-destructive Detection (NDT), especially suitable for the measurement of old and rare trees. The living trees complex internal structure makes the wooden medium highly anisotropic and heterogeneous. GPR uses the principle of the scattering of the electromagnetic wave which propagates through th...

Abstract Due to the lack of Boiling Water Reactor (BWR) fuel examination data after dry storage, Taiwan Power Company and Institute Nuclear Energy Research jointly launched “Taiwan Fuel Storage Demonstration Project” collect characteristics under simulated storage. To meet project requirements, BWR rods in different designs will be selected then store storage containers environments for 10 year...

The formulation of an innovative concrete that meets the requirements a self-compacting (SCC), with acceptable performance in terms rheology fresh state; good fluidity, ease placing, without segregation as well mechanical strength and durability at hardened state has become great research interest for last decades. Numerous studies have shown favorable effects limestone fillers on SCC propertie...

The prerequisite for more competent and cost effective transport has led to the evolution of innovative testing and evaluation procedures. Non-destructive testing and evaluation (NDT & E) techniques for assessing the integrity of composite structures are essential to both reduce manufacturing costs and out of service time of transport means due to maintenance. Smart methods for assessing the in...

Critical parts in aircraft manufacturing such as stringers are very commonly used in modern aircraft structures to resist the compressive loads caused by the aerodynamic effects. They are generally made-up of thin aluminium (Al) metal sheets and are one of the key components in the aircraft wings. Any defects in the stringer leads to weakening of the stiffness of the whole wing structure and co...

Flexible ultrasonic transducers (FUTs) consisting of a 75 μm thick metal membrane, a piezoelectric composite with a thickness larger than 85 μm and a top electrode were developed for structural health monitoring (SHM) and non-destructive testing (NDT) applications. The piezoelectric films were made by a sol-gel spray technique. Its ultrasonic performance in terms of signal strength is at least ...

Abstract With the emergence of various novel fuel elements, traditional X-ray test technologies refer to national standards that have gradually been unable meet non-destructive testing (NDT) requirements for these elements. As a new NDT technology, industrial computed tomography (CT) has great potential nuclear In this paper, through personalized transformation self-developed equipment, we carr...

Maintenance manuals include general methods and procedures for industrial maintenance and they contain information about principles of maintenance methods. Particularly, Non-Destructive Testing (NDT) methods are important for the detection of aeronautical defects and they can be used for various kinds of material and in different environments. Conventional non-destructive evaluation inspections...

A great deal of interest has been shown in the literature in the development of new Non-Destructive Techniques (NDT). In particular, there is increasing interest in detecting, evaluating and locating cracks as well as the source of the impact causing these cracks. Fuzzy logic was shown to be useful in crack detection, and severity of crack in materials. In this paper Fuzzy logic has been used i...