Results 71 to 80 of about 5,430 (219)

Turbulent heat transfer in spacer-filled channels: Experimental and computational study and selection of turbulence models [PDF]

, 2019
Heat transfer in spacer-filled channels of the kind used in Membrane Distillation was studied in the Reynolds number range 100–2000, encompassing both steady laminar and early-turbulent flow conditions.
Ciofalo M., Di Liberto M., La Cerva M., Tamburini A.   +3 more
core   +1 more source

A Peridynamic Framework for Modeling Progressive Failure in Porous Sandstone Indentation

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT A state‐based peridynamic model is proposed to simulate the failure mechanisms in porous rocks, using Bentheim sandstone as a specific example. Experimental observations reveal a transition from brittle to ductile failure under increasing triaxial compression. This behavior is attributed to pore compaction. The peridynamic model is enhanced to
Sahir N. Butt, Jörg Renner, Günther Meschke   +2 more
wiley   +1 more source

Lock-in Thermography for Surface Treatment Characterization in Gears

Engineering Proceedings
Mechanical gears are essential in power transmission systems across various industrial applications. Their performance is critically influenced by residual stresses from manufacturing processes like induction hardening, case hardening, and shot peening ...
Francesca Maria Curà, Luca Corsaro, Ludovica Tromba   +2 more
doaj   +1 more source

Detection of Through-Deck Type Fatigue Cracks in Steel Bridges by Self-Reference Lock-in Thermography

EPJ Web of Conferences, 2010
A new remote nondestructive inspection technique, based on thermoelastic temperature measurement by infrared thermography, is developed for detection and evaluation of fatigue cracks propagating from welded joints in steel bridges.
Tamakoshi T., Kubo S., Izumi Y., Sakagami T.   +3 more
doaj   +1 more source

Matched-Filter Thermography

Applied Sciences, 2018
Conventional infrared thermography techniques, including pulsed and lock-in thermography, have shown great potential for non-destructive evaluation of broad spectrum of materials, spanning from metals to polymers to biological tissues.
Nima Tabatabaei
doaj   +1 more source

Electromagnetic Thermography Nondestructive Evaluation: Physics-based Modeling and Pattern Mining [PDF]

, 2016
Electromagnetic mechanism of Joule heating and thermal conduction on conductive material characterization broadens their scope for implementation in real thermography based Nondestructive testing and evaluation (NDT&E) systems by imparting sensitivity ...
Gao, Bin, Tian, Gui Yun, Woo, Wai Lok
core   +2 more sources

A Comparative Study of Directed Energy Deposition‐Arc and Casting: Enhancing Mechanical and Thermal Properties of Hot‐Work Tool Steels

steel research international, EarlyView.
The study investigates the influence of DED‐Arc/M versus casting on the microstructure and material properties of X40CrMoV5‐1 (AISI H13) hot‐work tool steel. DED‐Arc/M yields finer microstructures, superior mechanical strength, and ductility, but slightly reduced thermal conductivity.
Ulf Ziesing, Aaron Berger, Hendric Schaefer, Sebastian Weber, Jonathan Lentz   +4 more
wiley   +1 more source

PyThermLIA: A Python library to implement digital lock-in processing

SoftwareX
PyThermLIA is a free and open-source Python library that implements a Digital Lock-in Amplifier for processing videos recorded by generic digital cameras.
E. Vargas, A. Bedoya, A. Borges, A. Calderon, O. Delgado, E. Marin   +5 more
doaj   +1 more source

Arianna's Palette: A Diagnostic Study of the Painting Walls of the Domus of Arianna in Pompeii

Archaeometry, EarlyView.
ABSTRACT The House of Arianna, also known as the House of Colored Capitals, represents, with its 1700 m2 of floor space, one of the most majestic examples of a residence within the Pompeii archaeological site. The research developed within the project “Cultural Heritage Active Innovation for Sustainable Society—CHANGES” reports the outcomes of the ...
Maria Verde, Alberto De Bonis, Claudia Di Benedetto, Diego Di Martire, Ersilia Fiore, Francesco Izzo, Renata Picone, Leopoldo Repola, Lia Romano, Vincenzo Morra   +9 more
wiley   +1 more source

In-Plane Heatwave Thermography as Digital Inspection Technique for Fasteners in Aircraft Fuselage Panels

Applied Sciences, 2020
The inspection of fasteners in aluminium joints in the aviation industry is a time consuming and costly but mandatory task. Until today, the manual procedure with the bare eye does not allow the temporal tracking of a damaging behavior or the objective ...
Michael Stamm, Peter Krüger, Helge Pfeiffer, Bernd Köhler, Johan Reynaert, Martine Wevers   +5 more
doaj   +1 more source