Results 111 to 120 of about 177,443 (234)

Digital Representation of NDE Systems: Data Networking and Information Modeling

Applied Sciences
To enhance the measuring capabilities of modern Non-Destructive Evaluation (NDE) devices, it has become essential to integrate standardized digitization services and industry-compliant functionalities.
Dharma Panchal, Frank Leinenbach, Cemil Emre Ardic, Marina Klees, Michael Peters, Florian Roemer   +5 more
doaj   +1 more source

NDE detectability of fatigue type cracks in high strength alloys [PDF]

Specimens suitable for investigating the reliability of production nondestructive evaluation (NDE) to detect tightly closed fatigue cracks in high strength alloys representative of those materials used in spacecraft engine/booster construction were ...
Christner, B. K., Rummel, W. D.
core   +1 more source

NDE of PWA 1480 single crystal turbine blade material [PDF]

Cantilever bending fatigue specimens were examined by fluorescent liquid penetrant and radioactive gas penetrant (Krypton) non-destructive evaluation (NDE) methods and tested.
Dreshfield, Robert L., Klima, Stanley J., Orange, Thomas W.   +2 more
core   +1 more source

Multiphysical characterization for predicting compressive strength of Portland cement concrete using synthetic aperture radar, ultrasonic testing, and rebound hammer

Scientific Reports
Portland cement concrete (PCC) is a versatile and widely used construction material renowned for its strength and durability. The mechanical properties of PCC, including compressive strength, flexural strength, and splitting tensile strength, play a ...
Maryam Abazarsa, Tzuyang Yu
doaj   +1 more source

Challenges in performing Integrated, Correlated Visual Evaluation and associated Material Characterization (NDE 4.0) for Failure Analysis of Spacecraft Propulsion System Components

e-Journal of Nondestructive Testing
Design of Spacecraft propellant system components are critical in nature as the material must sustain its integrity in corrosive propellant environment, under fatigue loads for mission of 5-12 years with optimum factor of safety.
Poornima S., Ramprasad B., Ashish Kumar Pande, Ragupathy V D.   +3 more
doaj   +1 more source

Characterization of sintered SiC by using NDE [PDF]

Capabilities of projection microfocus X-radiography and of ultrasonic velocity and attenuation for characterizing silicon carbide specimens were assessed. Silicon carbide batches covered a range of densities and different microstructural characteristics.
Baaklini, George Y.
core   +1 more source

Fair Inference On Outcomes

, 2018
In this paper, we consider the problem of fair statistical inference involving outcome variables. Examples include classification and regression problems, and estimating treatment effects in randomized trials or observational data.
Nabi, Razieh, Shpitser, Ilya
core   +1 more source

Nondestructive evaluation of ceramic and metal matrix composites for NASA's HITEMP and enabling propulsion materials programs [PDF]

In a preliminary study, ultrasonic, x-ray opaque, and fluorescent dye penetrants techniques were used to evaluate and characterize ceramic and metal matrix composites. Techniques are highlighted for identifying porosity, fiber alignment, fiber uniformity,
Generazio, Edward R.
core   +1 more source

Study program for encapsulation materials interface for low-cost solar array [PDF]

The service integrity of the bonded interface in solar cell modules used in solar arrays is addressed. The development of AC impedance as a nondestructive evaluation (NDE) methodology for solar arrays is reported along with development of corrosion ...
Kaelble, D. H., Kendig, M., Leung, C., Mansfeld, F. B.   +3 more
core   +1 more source

Modelling Based Radiography for NDE of Subsea Pipelines [PDF]

, 2015
Bellon, C, Deresch, A, Ewert, U, Haith, MI, Hohendorf, S, Huthwaite, P, Lowe, MJS, Zscherpel, U   +7 more
core   +1 more source