Marine, aerospace, ground and civil structures can receive unexpected loading thatmay compromise integrity during their life span. Therefore, improvement in detectingdamage can save revenue and lives depending upon the application. The prognosticcapability is usually a function of the examiner’s experience, background and datacollection during the evaluation. Nondestructive eval...

Abstract The railroad rail support trains and contributes to their operation. Internal surface defects occur on the due various combinations of causes including fatigue loading cyclic tension compression among others from deterioration along with temperature differences seasonal changes. Surface such as head check, shelling, squats start out in become internal poor maintenance, ultimately resul...

One of the barriers to adoption metal additively manufacturing by some industries is absence reliable part qualification procedures especially for components with complex geometries. Nondestructive evaluation (NDE) methods such as x-ray computed tomography (CT) and conventional ultrasonic testing (UT) have limitations in their abilities. X-ray CT costly, hazardous, offers limited resolution lar...

Maintaining the structural reliability of highway bridges under a budget constraint necessitates development accurate prediction models bridge deck deterioration to maximize service life while minimizing life-cycle costs. Traditionally, condition is assessed using ordinal discrete indices, referred as ratings (CRs), assigned based on an assessment visible signs deterioration. Nondestructive eva...

Machine learning for nondestructive evaluation (NDE) has the potential to bring significant improvements in defect characterization accuracy due its effectiveness pattern recognition problems. However, application of modern machine methods NDE been obstructed by scarcity real data train on. This article demonstrates how an efficient, hybrid finite element (FE) and ray-based simulation can be us...

Ultrasonic phased array inspection technology is widely used in nondestructive evaluation (NDE) applications and it has been proved to be an effective method for flaw detections in industry. In our study, this nondestructive evaluation method is proposed to detect the corrosion defects on engine cylinders. In order to demonstrate its feasibility, it is necessary to study the characteristics of ...

The sensitivity of the magnetic sensor is important for many electromagnetic Non Destructive Evaluation (NDE) applications. Nevertheless, for successful defect detection, properties such as high linearity, large dynamic range and good spatial resolution are required. One solution comes in good using improved solidstate magnetic sensors based on Giant MagnetoResistance (GMR). In this way, we hav...

Ultrasonic wavefield imaging (UWI) provides insightful spatial information about ultrasonic wave propagation in planar (2-D) space for nondestructive evaluation and structural health monitoring (NDE-SHM) applications. In all materials, the wavefronts of incident reflected waves propagate with unique patterns that may be represented by parametrized polar curves 2-D geometric space. this paper, a...

Various nondestructive evaluation (NDE) techniques have been studied to locate steel rebars or dowels, and to detect invisible damage such as voids and cracks inside concrete and debonding between rebars and concrete caused by corrosions and earthquakes. In this study, 3-dimensional (3D) microwave imaging technology was developed to detect such damage and to locate steel rebars or dowels. Exten...

Structural defects such as cracks have recently been identifiable through a new nondestructive evaluation (NDE) technique know as sonic IR or thennosonics. However, these defects are depicted through thennal imagining system as localized "hoI spots" indicating a general location of a defect without an accurate portrayal of the dimensions or shape of the defect. This paper demonstrates a new tec...