.... Government. ASME disclaims all interest in the U.S. Government's contributions. 06 08 2023 23 08 2023 11 03 2024 stress analysis fracture high temperature materials composites environmental oxidation The bond strength of an EBC to a substrate such as SiC/SiC...

.... Editor: Jerzy T. Sawicki. This material is declared a work of the U.S. Government and is not subject to copyright protection in the United States. Approved for public release; distribution is unlimited. 26 06 2018 03 07 2018 Composites Engines fracture Gas turbine technology...

...; published online June 15, 2018. Editor: David Wisler. 23 10 2017 11 01 2018 Experimental Flow Fracture Better engine performance and lower engine emissions are constantly pursued by automobile manufacturers around the world. The stringent regulations mandated by government...

...Abbas Rohani Bastami; Pedram Safarpour; Arash Mikaeily; Mohammad Mohammadi Fracture of blades is usually catastrophic and creates serious damages in the turbomachines. Blades are subjected to high centrifugal force, oscillating stresses, and high temperature which makes their life limited...

... Vacuum (P O 2  = 10 −14 Pa) C Vacuum (P O 2  = 10 −16 Pa) Fracture Gas turbine technology Temperature Turbines In recent years, in line with increasing awareness of the need to save energy, there has been a growing need for industrial gas turbines which offer greater...

..., and Fig. 9( b ) shows the specimen loaded at 400 N. The stress intensity factors presented in this paper are all maximum values (i.e., not stress intensity ranges, Δ K I ). The K I values are compared to the fracture toughness. Values of the fracture toughness have been reported in the literature...

... OURNAL OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript received June 20, 2016; final manuscript received February 1, 2017; published online March 28, 2017. Editor: David Wisler. 20 06 2016 01 02 2017 Fracture Temperature Thermal barrier coatings (TBCs...

... September 13, 2016. Editor: David Wisler. 19 06 2016 03 07 2016 Fatigue Finite element fracture Gas turbine technology Fracture prediction As gas turbine continuously elevates the gas inlet temperature to improve their efficiency, thermal barrier coatings (TBCs) obviously...

... online August 12, 2015. Editor: David Wisler. 15 07 2015 20 07 2015 Aerospace applications Experimental Fatigue Fracture Estimation of high temperature turbine component inspection/replacement intervals is a challenging but important task to perform, as high costs...

...Erik Storgärds; Kjell Simonsson; Sören Sjöström; David Gustafsson; Tomas Månsson Testing and simulation of aero-engine spectra with dwell times are reported in this paper. The modeling concept used is built on linear elastic fracture mechanics (LEFM) and provides a history-dependent evolution...

... Internal combustion engines Nonintrusive diagnostics Swirling Visualization Fracture Novel powertrain technologies have allowed automobiles to improve engine power and performance. For example, vehicles with spark-ignition direct-injection (SIDI) engines show remarkable advantages in lower fuel...

...E. Poursaeidi; M. R. Mohammadi Arhani; S. Hosseini; M. Darayi; M. Arablu This paper is aimed to show the effects of partial stall on the fracture of the first stage rotating blades of the gas turbine compressors of an onshore gas refinery. The first part of the paper deals with the results...

... temperature. For each condition, the rub primary dynamic modes have been evaluated, and the corresponding blade tip loads have been calculated. The preliminary results suggest that a CMC blade has similar abilities to a metal blade during a rub event. Composites Engines Experimental Fracture Gas...

... in these materials systems. Fatigue Fracture Advanced ceramics and glass–ceramics have been used for materials for structural or functional components in advanced heat engines, heat recovery systems, radomes, fuel cells, force protections, and others. Despite their excellent properties in some areas...

... in SN282 than in AS800 silicon nitride. The critical impact velocity where targets fractured catastrophically decreased with decreasing target size and was lower in SN282 than in AS800. Overall, FOD by steel projectiles was significantly less than that by silicon-nitride ceramic counterparts, due to much...

... oxidation behavior of these materials, particularly in the presence of water vapor. 28 06 2010 19 07 2010 15 04 2011 15 04 2011 austenitic stainless steel casting creep fracture gas turbines high-temperature effects oxidation thermal stress cracking Oak Ridge...

... of Materials (ASTM) Test Standard E1921–08 to determine the fracture toughness of the RPV steel in different thickness locations. In a first step, the trepans taken from the RPV Greifswald unit 1 containing the X-butt multilayer submerged welding seam and from base metal ring 0.3.1 both located in the beltline...

.... The use of the reloading, reirradiation, and reconstitution of the tested Charpy/fracture toughness specimens is also specified in the new revision. This paper reports the application and practice of the JEAC4201-2007 in terms of the prediction of embrittlement and the use of tested surveillance specimens...

... a minimum of 80% and sometimes equivalent to that of the base metal properties. 10 04 2008 04 05 2008 11 05 2010 11 05 2010 aerospace components aerospace engines brazing cracks ductility filler metals fracture gas turbines hardness hardness testing maintenance...

... compressible flow density finite volume methods fracture machine bearings machine control rotors stratified flow turbomachinery vibration control viscosity 28 03 2008 06 05 2008 29 09 2009 β local air volume fraction β 0 reference air volume...