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Keywords: fatigue
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Proceedings Papers

Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T06A017, June 7–11, 2021
Paper No: GT2021-59668
... software was used to fill in engine operating data at stations where recordings have not been taken. Engine life consumption was based on creep and low cycle fatigue failure mechanisms of the first gas generator turbine stage. Creep life fractions were calculated based on the Larson-Miller parameter curves...
Proceedings Papers

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT26A004, June 7–11, 2021
Paper No: GT2021-58787
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58787 ENERGY DISSIPATION METRICS FOR FATIGUE DAMAGE DETECTION IN THE SHORT CRACK REGIME FOR ALUMINUM ALLOYS Susheel Dharmadhikari1, Amrita Basak1,2 1Department...
Proceedings Papers

Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T02A009, June 7–11, 2021
Paper No: GT2021-60277
...]. The interlaminar fatigue, static fatigue, and cyclic fatigue were employed to properties are dependent on the properties of the matrix-rich or assess their individual respective lives. The MI SiC/SiC CMC fiber-matrix interface regions. These regions typically contain exhibited low susceptibility to fatigue ( slow...
Proceedings Papers

Proc. ASME. GT2020, Volume 3: Ceramics; Coal, Biomass, Hydrogen, and Alternative Fuels, V003T02A007, September 21–25, 2020
Paper No: GT2020-15604
...Abstract Abstract Uniaxial tension-tension fatigue performance of a SiC/SiC composite with an ytterbium-disilicate environmental barrier coating (EBC) was investigated at 1200°C in laboratory air and in steam. The composite is reinforced with Hi-Nicalon™ SiC fibers and has a melt-infiltrated...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A006, September 21–25, 2020
Paper No: GT2020-14830
...Abstract Abstract Rapid prototyping and design advancements in aviation gas turbine engine components are being made possible through the laser-fusion powder-bed additive manufacturing processes. However, with improvements in design, a comprehensive understanding of the fatigue performance...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A002, September 21–25, 2020
Paper No: GT2020-14122
...Abstract Abstract The fatigue life behavior and internal surface conditions of inherently damped Additive Manufactured (AM) specimens subjected to vibration bending are under investigation. This study supports research that demonstrated 95% vibration suppression due to damping capability of AM...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A002, September 21–25, 2020
Paper No: GT2020-14302
... and the turbine blades. Although appropriate considerations on material limits and structural performance of the turbine wheel are monitored in the design and aero-mechanical optimization phases, in these stages, fatigue phenomena might be ignored. Fatigue occurrence in VGT wheels can be categorized into low...
Proceedings Papers

Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T23A001, September 21–25, 2020
Paper No: GT2020-14007
... failures of damping mechanisms are discussed here. Failures of shroud bands, blade tenons, tie-bolts and damping wires are the particular examples presented. SCC (stress corrosion cracking), fatigue and overload were found to be the main modes of failures in these examples. The purpose of discussing...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A003, September 21–25, 2020
Paper No: GT2020-14207
... thermal states and at unusual cross-sections of the shaft, are shown and discussed. shaft cracks fault diagnosis rotating machine vibrations fatigue crack breathing mechanism ON THE EFFECTS OF A SHAFT CRACK PROPAGATION ON THE DYNAMIC BEHAVIOR OF A STEAM TURBINE Steven Chatterton, Paolo...
Proceedings Papers

Proc. ASME. GT2012, Volume 7: Structures and Dynamics, Parts A and B, 131-141, June 11–15, 2012
Paper No: GT2012-68502
... FATIGUE AND CRACK GROWTH IN 7050-T7451 ALUMINUM ALLOY UNDER CONSTANT- AND VARIABLE-AMPLITUDE LOADING James C. Newman, Jr. and Justin W. Shaw Mississippi State University Mississippi State, MS, USA 39762 j.c.newman.jr@ae.msstate.edu Balkrishna S. Annigeri and Brett M. Ziegler Pratt & Whitney East...
Proceedings Papers

Proc. ASME. GT2012, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation, 467-473, June 11–15, 2012
Paper No: GT2012-68902
... Tension-compression fatigue behavior of a non-oxide ceramic composite with a multilayered matrix was investigated at 1200°C in laboratory air. The composite was produced via chemical vapor infiltration (CVI). The composite had an oxidation inhibited matrix, which consisted of alternating layers...
Proceedings Papers

Proc. ASME. GT2005, Volume 2: Turbo Expo 2005, 857-863, June 6–9, 2005
Paper No: GT2005-68787
... selection, metallurgical and mechanical tests, a full-scale production test and an engine test in the 15MW gas turbine, will be described here. Single crystal Blade Creep Fatigue Engine test Proceedings of GT2005 ASME Turbo Expo 2005: Power for Land, Sea and Air June 6-9, 2005, Reno-Tahoe...
Proceedings Papers

Proc. ASME. GT2006, Volume 3: Heat Transfer, Parts A and B, 1473-1482, May 8–11, 2006
Paper No: GT2006-90676
... 11 09 2008 The life monitoring concept needs on-line calculation to evaluate stresses and temperatures on aircraft engine components, in order to asses fatigue damage accumulation and residual life. Due to the amount of computational time required it is not possible for a full finite...