Results 41 to 50 of about 7,801 (296)

Properties of GH4169 Superalloy Characterized by Nonlinear Ultrasonic Waves

Advances in Materials Science and Engineering, 2015
The nonlinear wave motion equation is solved by the perturbation method. The nonlinear ultrasonic coefficients β and δ are related to the fundamental and harmonic amplitudes.
Hongjuan Yan, Chunguang Xu, Dingguo Xiao, Haichao Cai   +3 more
doaj   +1 more source

Effect of Ultrasonic Shot Peening on the Microstructure and Fatigue Properties of FGH99 Alloy [PDF]

Cailiao Baohu
In order to improve the high-temperature performance of turbine discs， an ultrasonic shot peening test was conducted on FGH99 alloy for turbine discs.The microstructure and fatigue properties of FGH99 alloy after ultrasonic shot peening treatment were ...
SONG Yinggang, LUO Xuekun, WANG Xin, FENG Yefei, TIAN Gaofeng
doaj   +1 more source

Very high-cycle fatigue properties of 90° unidirectional CFRP laminates and evaluation of fatigue limits by free volume measurement using positron microscopy

Mechanical Engineering Journal, 2023
The objective of this study was to experimentally evaluate the fatigue limit of 90° unidirectional carbon fiber reinforced plastic (CFRP) laminates.
Masafumi TAZUKE, Tsuyoshi MIYAKOSHI, Atsushi HOSOI, Koji MICHISHIO, Nagayasu OSHIMA, Hiroyuki KAWADA   +5 more
doaj   +1 more source

In situ synchrotron ultrasonic fatigue testing device for 3D characterisation of internal crack initiation and growth [PDF]

, 2019
International audienceThis work presents a new ultrasonic fatigue testing device for studying the initiation and propagation mechanisms of internal microstructurally short fatigue cracks using in situ synchrotron tomography. Its principle is described as
Ranc, N., Nadot, Y., RANC, Nicolas, Andrew King, PALIN-LUC, T., BONNIN, Anne, Bonnin, A., Yves Nadot, MESSAGER, Alexandre, Thierry Palin‐Luc, GAILLARD, Yves, BUFFIÉRE, Jean Yves, Palin-Luc, Thierry, KING, Andrew, Saintier, Nicolas, Buffiere, J.-Y., Messager, A., Mohamed El May, King, A., Nicolas Saintier, PALIN LUC, Thierry, Gaillard, Y., Arnaud Junet, Jean‐Yves Buffiere, BUFFIERE, Jean-Yves, EL MAY, Mohamed, Nicolas Ranc, Yves Gaillard, El May, M., JUNET, Arnaud, NADOT, Yves, Anne Bonnin, Junet, A., SAINTIER, N., Alexandre Messager   +34 more
core   +1 more source

Monitoring trabecular bone microdamage using a dynamic acousto-elastic testing method [PDF]

, 2010
Dynamic acousto-elastic testing (DAET) is based on the coupling of a lowfrequency (LF) acoustic wave and high-frequency ultrasound (US) pulses (probing wave). It was developed to measure US viscoelastic and dissipative non-linearity in trabecular bone.
DEFONTAINE, Marielle, S Callé, S Guerard, MORESCHI, Hélène, GUÉRARD, Sandra, G Renaud, M Defontaine, CALLE, Samuel, MITTON, David, D Mitton, RENAUD, Guillaume, H Moreschi   +11 more
core   +1 more source

A new method for ultrasonic fatigue testing of equibiaxial and pure shear cruciform specimens [PDF]

, 2021
Mechanical and material testing and analysis are of indisputable importance. As the variety of materials and/or the complexity of products grows, so does the need for new material characterisation methods.
Freitas, M., Costa, P., Reis, L., Montalvão, Diogo   +3 more
core   +1 more source

Prediction of Fatigue Damage Evolution in 3D-Printed CFRP Based on Ultrasonic Testing and LSTM

Applied Sciences
To address the prediction of fatigue damage for 3D-printed Carbon Fiber Reinforced Polymer (CFRP), this study used 3D-printing technology to fabricate CFRP specimens. Through multi-stage fatigue testing, samples with varying porosity levels were obtained.
Erzhuo Li, Sha Xu, Hongqing Wan, Hao Chen, Yali Yang, Yongfang Li   +5 more
doaj   +1 more source

Ultrasonic fatigue testing system combined with online nondestructive testing for carbon fiber reinforced composites

, 2022
S.855-861The fatigue properties of carbon fiber reinforced polymers (CFRP), especially in the Very High Cycle Fatigue (VHCF) regime, are rarely investigated so far.
Helfen, Thomas Benedikt, Rabe, Ute, Backe, Daniel, Balle, Frank, Eifler, Dietmar, Boller, Christian, Sklarczyk, Christoph, Hirsekorn, Sigrun   +7 more
core  

Microstructure and defect sensitivities in the very high-cycle fatigue response of Laser Powder Bed Fused Ti–6Al–4V [PDF]

, 2023
This work aims to analyze the sensitivity of the very high-cycle fatigue behavior of LPBF-Ti-6Al-4V to microstructure and porosity variations. To do so ultrasonic fatigue testing is performed on five grades of LPBF-Ti-6Al-4V.
BONNAND, Vincent, RANC, Nicolas, FAVIER, Véronique, HAUTEVILLE, Robin, Vincent Bonnand, KOUTIRI, Imade, Patrick Aimedieu, Fabien Lefebvre, AIMEDIEU, Patrick, LEFEBVRE, Fabien, Nicolas Ranc, Grégoire Brot, Corinne Dupuy, Robin Hauteville, DUPUY, Corinne, Imade Koutiri, BROT, Grégoire, Véronique Favier   +17 more
core   +1 more source

Clinical Practice Guideline for Evaluation and Management of Peripheral Nervous System Manifestations in Sjögren's Disease

Arthritis Care &Research, EarlyView.
Objective Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies.
Anahita Deboo, Robert Fox, Katherine M. Hammitt, Julie Frantsve‐Hawley, Matthew C. Baker, Stamatina Danielides, Eduardo De Sousa, Brent P. Goodman, Jennifer K. King, Steven Mandel, Ghaith Noaiseh, Pantelis P. Pavlakis, George Sarka, R. Hal Scofield, Arun Varadhachary, Daniel J. Wallace, Matt Makara, Nancy Carteron, Steven Carsons, in collaboration with the Consensus Expert Panel (CEP) members, G. Alden Adkins, Brittany Adler, Hossein Ansari, Senada Arabelovic, Alan Baer, Denis Balaban, Shamik Bhattacharyya, Evelyn Bromet, Krishna Chaganti, Kamal Chemali, Melissa Cortez, Schartess Culpepper, Paul Dellaripa, Dana Direnzo, Daniel El Bogdadi, Robert Fearon, Mehrnez Fischbach, Judi Furlong, Christopher Gibbons, Rachael Gordon, Thomas Grader Beck, Syed Haider, Larry Hollenbeck, Chadwick R. Johr, Stuart S. Kassan, Brian King, Octavia Kincaid, Eugene Kissin, Vasileios Kyttaris, Lindsay Lally, Brandon M. Law, Janet Lewis, Scott M. Lieberman, Amanda Lusa, Joseph Lutt, Rashmi Maganti, Arthur M. Mandelin, Sara McCoy, Kerry Neall, Timothy Niewold, Anne Louise Oaklander, Ruben A. Peredo‐Wende, Lynn Petruzzi, Mark A. Porter, Guada Respicio Duque, Tania Reyna, Nathaniel M. Robbins, Elliot D. Rosenstein, Laura Rosow, Breanna Ruthrauff, Amit Sachdev, Nora Sandorfi, Sarah Schafer, Elena Schiopu, Chokkalingam Siva, Daniel Small, Sara M. Stern, Lauren Stiles, Susan Stoddard, Jinny Tavee, Donald Thomas, Edward L. Treadwell, Nagagopal Venna, Steven Vernino, Frederick B. Vivino, Brittany Weber, Sepideh Yadollahi, Huiying Yu, Scott Zashin   +88 more
wiley   +1 more source