Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems: Recent submissions
Now showing items 101-120 of 219
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Ultrasonic Rayleigh Wave Interrogation of Directed Energy Deposition Ti–6Al–4V Having a Rough Surface
(The American Society of Mechanical Engineers (ASME), 2022)In-situ monitoring techniques for additive manufacturing are in high demand to help produce reliable parts. The structural integrity of these parts depends on both the presence of flaws and their microstructure. Ultrasonic ... -
Uncertainty Measurement of the Prediction of the Remaining Useful Life of Rolling Bearings
(The American Society of Mechanical Engineers (ASME), 2022)In the study of the remaining useful life (RUL) prediction of neural networks based on deep learning, most of the RUL prediction models use point estimation models. However, due to the influence of the measurement noise ... -
Including Mean Stress in the Effective Equivalent Stress of the ASME BPVC Elastic–Plastic Fatigue Method
(The American Society of Mechanical Engineers (ASME), 2022)This work provides a novel method for including mean stress in the American Society of Mechanical Engineers (ASME) Boiler Pressure Vessel Code (BPVC) elastic–plastic fatigue procedure. Typically, the mean stress is accounted ... -
Process Monitoring and Estimation of Material Properties of Additively Manufactured Components Using Model-Based Inversion of Process Compensated Resonance Testing Data
(The American Society of Mechanical Engineers (ASME), 2022)Certification of additively manufactured (AM) parts and qualification of AM processes, suppliers, and machines for aerospace applications involve significant mechanical testing, cost, and time. The AM community requires ... -
Mutual Interaction of Guided Waves Having Mixed Polarity for Early Detection of Material Degradation
(The American Society of Mechanical Engineers (ASME), 2022)Guided wave mixing leverages mutual wave interactions to provide sensitive diagnostics of material degradation in plates and pipes and an early warning upon which maintenance decisions can be based. In some cases, the ... -
Localization of a Breathing Delamination Using Nonlinear Lamb Wave Mixing
(The American Society of Mechanical Engineers (ASME), 2022)A guided wave-based method for localization of breathing delamination is presented in this investigation. The proposed technique utilizes one-way mixing of a dual-frequency fundamental antisymmetric Lamb modes with judiciously ... -
Fault Diagnosis of Bearings Using Recurrences and Artificial Intelligence Techniques
(The American Society of Mechanical Engineers (ASME), 2022)Rolling element bearings are one of the most common mechanical components used in a wide variety of rotating systems. The performance of these systems is closely associated with the health of bearings. In this study, a ... -
Nondestructive Evaluation of Stress Corrosion Cracking in a Welded Steel Plate Using Guided Ultrasonic Waves
(The American Society of Mechanical Engineers (ASME), 2022)Stress corrosion cracking (SCC) had occurred in early-generation high-level nuclear waste tanks constructed by welding carbon steel. This paper describes an ultrasonic inspection system and its fundamental ability to detect ... -
Vibration Monitoring of Nuclear Power Plant Containment Buildings During the Integrated Leakage Rate Test for Structural Condition Assessment
(The American Society of Mechanical Engineers (ASME), 2022)This study investigates the use of the operational vibrations produced during the Integrated Leak Rate Test of nuclear power plant containment buildings for further informing on its mechanical condition. The experiment is ... -
Amplification of Lamb-Wave Detection via Fiber Bragg Gratings Using Ultrasonic Horns
(The American Society of Mechanical Engineers (ASME), 2022)Fiber Bragg grating (FBG) sensors are often applied as Lamb wave detectors for structural health monitoring (SHM) systems. Analyzing the measured signal for the identification of structural damage requires a high signal-to-noise ... -
Constructing Robust and Reliable Health Indices and Improving the Accuracy of Remaining Useful Life Prediction
(The American Society of Mechanical Engineers (ASME), 2022)A system health index is a measurement of the health condition of complex systems. However, most of the health indices are developed based on strong assumptions. Consequently, existing health indices are not capable of ... -
Nonlinear Acoustic Technique for Monitoring Porosity in Additively Manufactured Parts
(The American Society of Mechanical Engineers (ASME), 2022)Ultrasonic wave based techniques are widely used for damage detection and for quantitative and qualitative characterization of materials. In this study, ultrasonic waves are used for probing the response of additively ... -
Numerical Investigations Into Nonlinear Vibro-Ultrasonics and Surface Vibration Comparison Method for Detection of Defects in a Composite Laminate
(The American Society of Mechanical Engineers (ASME), 2021)This paper begins with a numerical study based on earlier experiments of nonlinear vibro-ultrasonic behavior of a composite laminate with a delamination defect upon sinusoidal linear sweep signal excitation. A methodology ... -
Alkali Activated Fly Ash-Based Concrete: Evaluation of Curing Process Using Non-Linear Ultrasonic Approach
(The American Society of Mechanical Engineers (ASME), 2021)This paper investigates the applicability of the nondestructive testing and evaluation (NDT& -
Highly Sensitive Nonlinear Identification to Track Early Fatigue Signs in Flexible Structures
(The American Society of Mechanical Engineers (ASME), 2021)This study describes a physics-based and data-driven nonlinear system identification (NSI) approach for detecting early fatigue damage due to vibratory loads. The approach also allows for tracking the evolution of damage ... -
Gaussian Process NARX Model for Damage Detection in Composite Aircraft Structures
(The American Society of Mechanical Engineers (ASME), 2021)This article demonstrates the Gaussian process regression model’s applicability combined with a nonlinear autoregressive exogenous (NARX) framework using experimental data measured with PZTs’ patches bonded in a composite ... -
A Development Strategy for Structural Health Monitoring Applications1
(The American Society of Mechanical Engineers (ASME), 2021)Permanently installed structural health monitoring (SHM) systems are now a viable alternative to traditional periodic inspection (nondestructive testing (NDT)). However, their industrial use is limited, and this article ... -
Machine Learning and Anomaly Detection Algorithms for Damage Characterization From Compliance Data in Three-Point Bending Fatigue
(The American Society of Mechanical Engineers (ASME), 2021)Three-point bending fatigue compliance datasets of multi-layer fiberglass-weave/epoxy test specimens, including 5 and 10 mil interlayers, were analyzed using artificial intelligence (AI) methods along with statistical ... -
Feasibility of Molten Salt Reactor Heat Exchanger Online Monitoring
(The American Society of Mechanical Engineers (ASME), 2021)Online structural health corrosion monitoring in advanced molten salt reactor heat exchangers is desirable for detecting tube degradation prior to leaks that would either cause mixing of heat exchanger fluids or release ... -
Surface Temperature Mapping of a Metal Plate Using Ultrasound-Guided Wave Technique
(The American Society of Mechanical Engineers (ASME), 2021)Surface temperature mapping is crucial for the monitoring and control of an object of interest, such as furnace, reactor pipes carrying hot fluids, or a component under a temperature-dependent process. While the use of ...