Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems
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Effect of Various Notch Shapes on Lamb Wave Scattering Behavior in a Bent Plate
(The American Society of Mechanical Engineers (ASME), 2024)The application of guided waves to investigate commonly used plate shapes in the aerospace, mechanical, and civil industries is plates with bend shapes. This article investigates the interaction of fundamental Lamb waves ... -
Similarity Analysis to Enhance Transfer Learning for Damage Detection
(The American Society of Mechanical Engineers (ASME), 2024)One significant challenge in machine learning for Structural Health Monitoring (SHM) is reusing previously trained classifiers. A classifier might be suitable for one situation but not for another. Transfer learning ... -
Stress Evaluation of Ferromagnetic Materials Based on a New Barkhausen Noise Sensor Composed by High Entropy Alloy Magnetic Core
(The American Society of Mechanical Engineers (ASME), 2024)During the service of ferromagnetic structural steel materials, stress should be evaluated accurately. Although the magnetic Barkhausen noise (MBN) testing has the ability to sense stress, it can be easily interfered with ... -
A Monte Carlo Method to Decision-Making in Maintenance Strategies
(The American Society of Mechanical Engineers (ASME), 2024)Health prognosis is an advanced approach for anticipating the future status of systems, structures, and components. While it is accepted as an important step in boosting maintenance performance and resilience of a system, ... -
Finite Element Method Modeling for Extended Depth of Focus Acoustic Transducer
(The American Society of Mechanical Engineers (ASME), 2024)Extended depth of focus (DOF) with high lateral resolution is the primary requirement of the transducer in scanning acoustic microscopy to generate high-resolution images of the three-dimensional sample over a large depth. ... -
Modeling of Fiber Optic Acoustic Coupler for Ultrasonic Sensing
(The American Society of Mechanical Engineers (ASME), 2024)Fiber Bragg grating sensors have been applied in the remote-bonding configuration for structural health monitoring, in which ultrasonic modes are propagated along the optical fiber to the sensor. Recently, coupling of the ... -
Pump and Probe Wave Mixing for Imaging Nonlinear Features Embedded Into a Massive Concrete Block
(The American Society of Mechanical Engineers (ASME), 2024)Nonlinear ultrasonic parameters are known to be highly sensitive to the presence of damage in materials, and numerous methods have already been reported. This study proposes a way to image a nonlinear defect embedded into ... -
Closed Cracks Characterization in a Steel Sample Applying a Pump Probe Waves Ultrasonic Method
(The American Society of Mechanical Engineers (ASME), 2024)Ultrasonic measurements are commonly used for crack sizing in the industrial context, but due to potential partial crack closure, the crack depth can be underestimated. It could be of importance regarding the prediction ... -
A Feature Extraction Method for Prognostic Health Assessment of Gas Compressor Valves
(The American Society of Mechanical Engineers (ASME), 2024)This article presents features derived from the pressure–volume (PV) diagram that is useful in estimating different valve faults in reciprocating compressors with a strong potential of remaining useful life prediction. The ... -
Influence of the System Downtime Cost Rate on the Performance and Robustness of Periodic Inspection and Replacement and Quantitative Inspection and Replacement Maintenance Strategies Using Monte Carlo Method
(The American Society of Mechanical Engineers (ASME), 2024)This essay analyzes the crucial role of maintenance in production and service-oriented enterprises, highlighting the necessity for integrated viewpoints in contemporary corporate management. Focusing on time-based maintenance ... -
Gaidai Risk Evaluation Method for Lifetime Assessment for Offshore Floating Wind Turbine Gearbox
(The American Society of Mechanical Engineers (ASME), 2024)Renewable clean energy in some cases may be viewed as an alternative to limited fossil resources. Offshore floating wind turbines (FWTs) are among the most attractive green alternatives. However, FWTs, in particular their ... -
Focused Electromagnetic Acoustic Transducers for Lamb Wave Inspection
(The American Society of Mechanical Engineers (ASME), 2024)Ultrasonic inspection of conductive samples can be performed using electromagnetic acoustic transducers (EMATs). These allow generation of guided waves, such as Lamb waves, in thin plates. Lamb waves are used for defect ... -
Global Sensitivity Analysis of Ultrasonic Testing Simulations of Slot-Like Defects With Multifidelity Modeling
(The American Society of Mechanical Engineers (ASME), 2024)In this paper, an efficient global sensitivity analysis (GSA) method for simulation-based ultrasonic testing (UT) of slot-like defects using multifidelity modeling with novel termination criterion is proposed. GSA quantifies ... -
Evaluating Model Robustness for Defect Identification and Classification in a Composite Aerostructure Material
(The American Society of Mechanical Engineers (ASME), 2024)Aircraft structures are required to have a high level of quality to satisfy their need for light weight, efficient flight, and withstanding high loads over their lifespan. These aerostructures are typically made from a ... -
Identifying Inner Race Faults in Deep Groove Ball Bearing Using Nonlinear Mode Decomposition and Hilbert Transform
(The American Society of Mechanical Engineers (ASME), 2024)This study focuses on the analysis of vibration-based signatures obtained from deep groove ball bearings with faults on the inner race. Various time−frequency-based methods are commonly used to diagnose faults in bearings. ... -
A Cyberphysical Structural Health Monitoring Framework for Threshold-Free Active Signal Detection and Classification on the Edge
(The American Society of Mechanical Engineers (ASME), 2024)The increased focus on predictive maintenance of safety-critical engineering structures requires an onboard structural health monitoring system, which is reliable and robust to provide accurate predictions of health metrics ... -
The Use of Nonlinear Guided-Wave Features for Detection and Assessment of Intermetallic Compounds Within Dissimilar Joints—An Experimental Investigation
(The American Society of Mechanical Engineers (ASME), 2024)Welding dissimilar materials is widely employed in industrial construction and manufacturing to enhance cost-effectiveness and performance, often utilizing non-fusion methods like solid-state and high-energy beam welding. ... -
Probabilistic Deep Learning Approach for Fatigue Crack Width Estimation and Prognosis in Lap Joint Using Acoustic Waves
(The American Society of Mechanical Engineers (ASME), 2024)Accurate fatigue crack width estimation is crucial for aircraft safety, however, limited research exists on (i) the direct relationship between fatigue crack width and Lamb wave signatures and (ii) probabilistic artificial ... -
Investigation of Surface Roughness–Induced Attenuation of Reflected Waves Using a Quasi-Monte Carlo Method
(The American Society of Mechanical Engineers (ASME), 2025)An understanding of the influence of surface roughness on wave scattering and accurate predictions of wave amplitudes are crucial for quantitative ultrasonic nondestructive testing and evaluation. In this work, the effects ... -
Precursor Damage Quantification in Composite Structures Using Coda Wave Interferometry and Nonlinear Ultrasonics
(The American Society of Mechanical Engineers (ASME), 2024)Methods to quantification of precursor damage in carbon fiber reinforced polymer (CFRP) composite structures are reported herein. These techniques include coda wave interferometry (CWI) and nonlinear ultrasonics (NLU). ...