scholarly journals Novel approach of wavelet analysis for nonlinear ultrasonic measurements and fatigue assessment of jet engine components

2018 ◽  
Author(s):  
Gheorghe Bunget ◽  
Brevin Tilmon ◽  
Andrew Yee ◽  
Dylan Stewart ◽  
James Rogers ◽  
...  
Keyword(s):  
Wavelet Analysis ◽  
Jet Engine ◽  
Fatigue Assessment ◽  
Novel Approach ◽  
Ultrasonic Measurements ◽  
Nonlinear Ultrasonic ◽  
Engine Components

FLYLITE ZRE-1

Alloy Digest ◽  
1952 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Compressive Strength ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Base Alloy ◽  
Heat Treating ◽  
Jet Engine ◽  
Temperature Performance ◽  
Engine Components ◽  
Temperature Applications

Abstract Flylite ZRE-1 is a creep resistant magnesium-base alloy primarily designed for jet engine components and other high temperature applications. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as creep. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Mg-2. Producer or source: Howard Foundry Company.

Scatter in nonlinear ultrasonic measurements due to crystallographic orientation change induced anisotropy in harmonics generation

2012 ◽  
Vol 111 (5) ◽  
pp. 054905 ◽  
Author(s):  
Amretendu Mukhopadhyay ◽  
Rajdeep Sarkar ◽  
Sony Punnose ◽  
Jitendra Valluri ◽  
T. K. Nandy ◽  
...  
Keyword(s):  
Crystallographic Orientation ◽  
Induced Anisotropy ◽  
Orientation Change ◽  
Ultrasonic Measurements ◽  
Nonlinear Ultrasonic ◽  
Harmonics Generation

scholarly journals Nonlinear ultrasonic measurements based on cross-correlation filtering techniques

2017 ◽  
Author(s):  
Andrew Yee ◽  
Dylan Stewart ◽  
Gheorghe Bunget ◽  
Patrick Kramer ◽  
Kevin Farinholt ◽  
...  
Keyword(s):  
Cross Correlation ◽  
Ultrasonic Measurements ◽  
Nonlinear Ultrasonic ◽  
Correlation Filtering ◽  
Filtering Techniques

Characterization of the Multiaxial States of Stress in an Uncooled Gas Turbine Blade

1987 ◽  
Author(s):  
A. Fischersworring ◽  
W. Koschel
Keyword(s):  
Turbine Blade ◽  
Elastic Stress ◽  
Primary Concern ◽  
Stress Strain ◽  
Jet Engine ◽  
Design Concepts ◽  
Engine Components ◽  
Damage Tolerant ◽  
Temperature Time

The assessment of fatigue-creep life of hot engine components either using conventional safe life design approach or damage tolerant design concepts require the computation and evaluation of the stress-strain-temperature-time cycles corresponding to the operational sequences. For typical jet engine operations the temperature and elastic stress-strain states for an uncooled turbine blade were calculated using finite elements. A primary concern was the aspect of multiaxiality and associated non-proportionality. The results are discussed in regard to multiaxial equivalent damage concepts.

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