Thermal Strength Evaluation of the Super Alloy Structure with Various Thermal Insulation Performances by FEM and Stress-Rupture Experiment

Je Jun Lee; Young Shin Lee; Jae Hoon Kim; Seong Woo Byun; Song Heo Koo; Soon Il Moon

doi:10.4028/www.scientific.net/KEM.353-358.1064

Paper Titles

Numerical Studies of End Effect on Crack Propagation Behavior of Brittle Specimen Containing Pre-Existing Crack under Uniaxial Compression
p.1049

On the Relations between the Threshold Values of the Fatigue Crack Growth and the Cyclic Deformation Behavior of Materials
p.1053

Determination of Growing Direction of Fatigue Crack
p.1057

Investigating Morphology Evolution of Damage by a Cellular Automaton Modelling
p.1060

Thermal Strength Evaluation of the Super Alloy Structure with Various Thermal Insulation Performances by FEM and Stress-Rupture Experiment
p.1064

Monte Carlo Simulation of Stress Corrosion Cracking in Structural Metal Materials Taking Account of Surface Crack Effects
p.1068

Dynamic Analysis and Three-Dimensional Finite Element Simulation of Cracked Gear
p.1072

On the Stress Intensity Factor of Cracks in Residual Stress Field
p.1078

Finite Element Analysis of Blower Impeller Using Cyclic Symmetry
p.1082

HomeKey Engineering MaterialsKey Engineering Materials Vols. 353-358Thermal Strength Evaluation of the Super Alloy...

Thermal Strength Evaluation of the Super Alloy Structure with Various Thermal Insulation Performances by FEM and Stress-Rupture Experiment

Abstract:

The combustor chamber, diffuser and nozzle are the main components of the ramjet engine. In this study, the thermal strength of the combustion chamber of the ramjet engine was evaluated. The combustion chamber consists of an Inconel alloy 718 liner and a 17-4Ph stainless steel housing. The liner is rapidly heated to a high temperature. The heated liner is cooled with a film cooling method that forms a cold boundary layer to separate the hot gas from the surface of the liner. The thermo-structural analysis is evaluated the thermal strength of super alloy structure with various thermal insulation performances by finite element method with code MSC/Nastran. The result of the analysis is compared with accelerated stress rupture test. The experiment is performed to get safety design and estimate actually life-time for combustor chamber under high temperature. In general, the work in this paper is helpful to further improve the understanding and evaluation of thermal strength of the super alloy structure with various thermal insulation performances.

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Periodical:

Key Engineering Materials (Volumes 353-358)

Pages:

1064-1067

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.353-358.1064

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Online since:

September 2007

Authors:

Je Jun Lee, Young Shin Lee, Jae Hoon Kim, Seong Woo Byun, Song Heo Koo, Soon Il Moon

Keywords:

17-4 PH Stainless Steel, Combustion Chamber, Finite Element Model (FEM), Inconel Alloy 718, Ramjet Engine, Stress Rupture Experiment, Thermal Strength Evaluation

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References

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