Results 61 to 70 of about 1,220,037 (212)

Analysis of Shear Damage Evolution [PDF]

International Journal of Damage Mechanics, 1998
Shear damage development under constant stress is studied on the basis of the analytical solution of kinetic equations of damage accumulation. The existence of two threshold stresses is linked with the presence of three various stress intervals and respective regimes of damage growth.
openaire   +1 more source

Fighter aircraft flight control technology design requirements [PDF]

, 1984
The evolution of fighter aircraft flight control technology is briefly surveyed. Systems engineering, battle damage considerations for adaptive flutter suppression, in-flight simulation, and artificial intelligence are briefly ...
Nelson, W. E., Jr.
core   +1 more source

Laminated Steel Fiber-Reinforced Concrete Hingeless Arch: Research on Damage Evolution Laws

Applied Sciences
In the context of reinforced concrete (RC) arch bridges, while the incorporation of full sections of steel fibers can enhance the bridge’s toughness, cracking resilience, and bearing capacity, achieving an optimal balance between structural performance ...
Zhongchu Tian, Ye Dai, Tao Peng, Zujun Zhang, Yue Cai, Binlin Xu   +5 more
doaj   +1 more source

Time evolution of damage under variable ranges of load transfer

, 2002
We study the time evolution of damage in a fiber bundle model in which the range of interaction of fibers varies through an adjustable stress transfer function recently introduced.
B.D. Coleman, B.D. Coleman, C. Moukarzel, D. Sornette, D.G. Harlow, E. Luijten, F. Kun, Ferenc Kun, G. Dill-Langer, G.G. Batrouni, H.E. Daniels, Hans J. Herrmann, J.B. Gómez, L. deArcangelis, L. Moral, L. Niemeyer, L.A. Turkevich, M. Barthelemy, M. Kloster, M. Vázquez-Prada, Oluwole E. Yewande, P.C. Hemmer, R.C. Hidalgo, R.L. Smith, Raul Cruz Hidalgo, S. Feng, S. Pradhan, S. Roux, S. Zapperi, S.D. Zhang, S.R. Pride, W.A. Curtin, W.I. Newman, W.I. Newman, Y. Cantor, Y. Moreno, Y. Moreno, Y. Termonia, Yamir Moreno   +38 more
core   +1 more source

Experimental Investigation on Time-Frequency Characteristics of Microseismic Signals in the Damage Evolution Process of Coal and Rock

Energies, 2020
The deformation and failure of coal and rock materials is the primary cause of many engineering disasters. How to accurately and effectively monitor and forecast the damage evolution process of coal and rock mass, and form a set of prediction methods and
Wei Yang, Chengwu Li, Rui Xu, Xunchang Li   +3 more
doaj   +1 more source

Coupled visco-mechanical and diffusion void growth modelling during composite curing [PDF]

, 2010
Most critical processing step during long fiber reinforced epoxy matrix composite laminate manufacturing is the polymerization stage. If not optimized, it gives birth to defects in the bulk material, such as voids.
Bernhart, Gérard, Ledru, Yohann, Michel, Laurent, Piquet, Robert, Schmidt, Fabrice   +4 more
core   +3 more sources

Sudden drop of fractal dimension of electromagnetic emissions recorded prior to significant earthquake

, 2013
The variation of fractal dimension and entropy during a damage evolution process, especially approaching critical failure, has been recently investigated.
A Olemskoy, A Ponomarev, A Rabinovitch, A Voss, B Enescu, B-L Hao, BB Mandelbrot, BS Raghavendra, C Kontoes, C Lu, C Papadimitriou, CH Scholz, D Bahat, G. Minadakis, J Schmittbuhl, J Weeks, K Eftaxias, K Eftaxias, K Eftaxias, K Eftaxias, K Karamanos, K Karamanos, K Mogi, K. Eftaxias, L Telesca, L Telesca, M Gokhberg, M Kalimeri, P Kapiris, S Shoupeng, S Uyeda, S. M. Potirakis, T Higuchi, X Zhou, X-L Lei, Y Contoyiannis, Y Tsukakoshi, Y-M Wu, YH Li   +38 more
core   +1 more source

Modified Non-Local Damage Model: Resolving Spurious Damage Evolution

Accurate prediction of damage and fracture evolution is critical for the safety design and preventive maintenance of engineering structures, however existing computational methods face significant limitations. On one hand, discrete damage and phase-field models are often computationally prohibitive for real world applications and they are less ...
Saji, Roshan Philip, Pantidis, Panos, Mobasher, Mostafa E.   +2 more
openaire   +2 more sources

Acutely damaged axons are remyelinated in multiple sclerosis and experimental models of demyelination [PDF]

, 2017
Remyelination is in the center of new therapies for the treatment of multiple sclerosis to resolve and improve disease symptoms and protect axons from further damage.
Bramlett, Brück, Brück, Clark, Cunningham, Foote, Fünfschilling, Gudi, Hiremath, Hiremath, Irvine, Irvine, Kornek, Kuhlmann, Kutzelnigg, Lassmann, Lassmann, Lee, Lindner, Lindner, Lucchinetti, Manrique-Hoyos, Mason, Matsushima, McKenzie, Mildner, Morrison, Murray, Nikic, Otsuka, Patrikios, Pierce, Schuh, Simons, Singh, Skripuletz, Sorbara, Stidworthy, Trapp   +38 more
core   +1 more source

Seismic Performance Testing and Damage Analysis of Reinforced T-Stub Connections

Buildings
To improve the seismic performance of semi-rigid steel frame beam–column joints connected by T-stubs, reinforced T-stubs formed via wedge-shaped and thickening modifications are proposed.
Yifei Chen, Xin Bu, Bing Shen, Xufeng Yin, Xinwu Wang, Qiang Huang, Zhiwei Zhang   +6 more
doaj   +1 more source