... catastrophic consequences. It is crucial to ensure that a tunnel-ventilation fan can operate in stall at reduced speed without risk of mechanical failure (see Appendix). aerodynamics failure (mechanical) fans flow visualisation risk analysis waveform analysis 16 05 2010 31 05 2010...

... fatigue high temperature life prediction blades casting failure (mechanical) fatigue cracks fatigue testing gas turbines nickel alloys polymer blends stress analysis stress-strain relations 26 10 2009 22 11 2009 16 08 2010 16 08 2010 2010 American Society...

... to compute the vibration response. The presented methodology is applied to the calculation of the forced response of a nonlinear coupled turbine blading in the frequency domain. 14 04 2009 08 09 2009 26 05 2010 26 05 2010 blades failure (mechanical) fatigue frequency-domain...

... crack initiation and ultimately, to failures. failure (mechanical) fatigue finite element analysis gas turbines mechanical contact 14 04 2009 07 05 2009 30 03 2010 30 03 2010 2010 American Society of Mechanical Engineers ...

.... The analysis of melted edge shows presence of all the elements representing various coating layers as well as the impurities; however, Zr and Y were not detected in the melted areas. aerospace engines blades failure (mechanical) gas turbines scanning electron microscopy X-ray chemical analysis...

... of the turbine section. 14 12 2007 11 11 2008 09 04 2009 blades discs (structures) failure (mechanical) failure analysis fatigue cracks finite element analysis gas turbine power stations mechanical testing nozzles stress analysis surface cracks turbogenerators vibrations...

... ballistic impact bending ceramics composite materials failure (mechanical) impact (mechanical) 2009 American Society of Mechanical Engineers ...

..., the validation of the concept by the results of component tests is shown. gas turbines remaining life assessment fatigue cracks stress-strain relations steel rotors nickel alloys superalloys blades failure (mechanical) 27 04 2007 07 05 2007 09 01 2008...

... of the initiation phase on the lifetime distribution. 05 07 2006 05 08 2006 microcracks fracture mechanics finite element analysis failure (mechanical) Lifetime prediction of components subjected to fatigue loading is based on suitable models for crack initiation and crack growth...

... to include the results of the validation studies for the physical models so that the proper probabilistic models for experimental and modeling errors are defined. 16 09 2005 11 10 2005 Bayes methods large-scale systems reliability failure (mechanical) turbines fatigue aerospace...

... intensity solution for mixed-mode, to predict extension. Comparisons with benchmark solutions and field data verified the computational methodology and defined the limits of its applicability. fracture mechanics cracks fatigue life testing failure (mechanical) stress analysis structural...

... reinforced composites fasteners silicon compounds gas turbines aircraft testing combustion failure (mechanical) melt infiltration aerospace propulsion ceramics A major focus of NASA’s enabling propulsion materials (EPM) program was development of advanced ceramic matrix composites (CMC’s...

..., Honeywell, General Electric, Pratt & Whitney, Rolls Royce, plc., and Williams International. Current approaches are not necessarily applied uniformly among all engine manufacturers. gas turbines engines fatigue testing failure (mechanical) 01 Oct 2000 01 Feb 2001 15 08...

... is a primary factor in the failure mechanism. Both mechanical damage and environmental aging of the polymer resin are indicated. While the polymer bushing is staked in place to prevent rotation, deformation of the bushing and the combined wear of the bushing and the IGV button allow the bushing to move...

... September 2001 24 09 2002 thermal barrier coatings delamination cracks ceramics failure (mechanical) Thermal barrier ceramic coating (TBC) is used to protect an alloy operating at high temperature, for example, at 1500°C and so that high thermal efficiency for an advanced gas...

... failure (mechanical) 08 May 2000 01 November 1999 01 February 2000 19 06 2002 Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER . Paper...

... Editor: D. R. Ballal. 08 May 2000 01 November 1999 01 February 2000 19 06 2002 fibre reinforced composites ceramics gas turbines failure (mechanical) cracks silicon compounds carbon compounds The successful application of fiber-reinforced ceramic matrix...

... received by IGTI, Nov. 1999; final revision received by ASME Head quarters, Feb. 2000. Associate Editor: D. Wisler. 01 Nov 1999 01 Feb 2000 19 06 2002 gas turbines life testing materials testing stress effects high-temperature effects failure (mechanical) mechanical...

.... 1999; final revision received by ASME Headquarters Feb. 2000. Associate Editor: D. Wisler. 08 May 2000 01 11 1999 01 02 2000 26 03 2002 mechanical contact fatigue cracks stress analysis failure (mechanical) gas turbines...

...; Paper 00-GT-389. Manuscript received by IGTI Nov. 1999; final revision received by ASME Headquarters Feb. 2000. Associate Editor: D. Wisler. 08 May 2000 01 11 1999 01 02 2000 26 03 2002 rotors seals (stoppers) failure (mechanical...