| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hloch, Sergej
Czech Academy of Sciences
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023Effect of eggshell powder on the microstructural and thermal behavior of Al7075/waste eggshell surface composites produced by solid-state friction stir processing developed for potential thermal applicationscitations
- 2023An investigation on microstructural features and bonding strength of magnesium-based multifunctional laminated composite developed by friction stir additive manufacturingcitations
- 2022Microwave-Assisted Synthesis, Characterization and Tribological Properties of a g-C3N4/MoS2 Nanocomposite for Low Friction Coatingscitations
- 2019Surface integrity in wire-EDM tangential turning of in situ hybrid metal matrix composite A359/B4C/Al2O3citations
- 2019Joint strength evaluation of friction stir welded Al-Cu dissimilar alloyscitations
- 2016Evaluation of hoop residual stress variations in the thickness of dissimilar welded pipes by using the LCR ultrasonic wavescitations
- 2013Employing the LCR waves to measure longitudinal residual stresses in different depths of a stainless steel welded platecitations
- 2012Comparison of mechanical properties of surface layers with use of nanoindentation and microindentation tests ; Usporedba mehaničkih svojstava površinskih slojeva pomoću testova nano i mikro utiskivanja
- 2006Influence and evaluation of selected factors to accoustic sound pressure at abrasive waterjet cutting technology ; Vplyv a hodnotenie vybraných faktorov na hladinu akustického tlaku v technológii delenia vysokorýchlostným hydroabrazívnym prúdom
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article
Employing the LCR waves to measure longitudinal residual stresses in different depths of a stainless steel welded plate
Abstract
Ultrasonic stress measurement is based on the acoustoelasticity law which presents the relationship between the stress and acoustic wave velocity in engineering materials. The technique uses longitudinal critically refracted (LCR) waves that travel parallel to the material surface. The LCR wave is a bulk longitudinal wave that propagates within an effective depth underneath the surface while the penetration depth of a L CR wave depends on its frequency. It is possible to measure the residual stress in different depths by employing different frequencies of the LCR waves. This paper evaluates welding residual stresses in different depths of a plate made of austenitic stainless steel (304L). The penetration depths are accurately measured for the LCR waves produced by 1 MHz, 2 MHz, 4 MHz, and 5 MHz transducers. Residual stresses through the thickness of the plate are then evaluated by employing four different series of transducers. It has been concluded that the LCR method is nondestructive, easy and fast, portable, readily available, and low cost and bulk measuring technique which can be accurately employed in through-thickness stress measurement of austenitic stainless steels. © 2013 Yashar Javadi and Sergej Hloch.