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Fatigue Characteristic of Linear Friction Welded Ti-6Al-4V Joints Read chapter Read first chapter

2020 | OriginalPaper | Chapter

Studies on the Fatigue Damage Behavior of Active Jet Engine Chevron

Authors : Bingfei Liu, Shangyang Jin, Shaozhe Dong, Zhenyu Feng

Published in: ICAF 2019 – Structural Integrity in the Age of Additive Manufacturing

Publisher: Springer International Publishing

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Abstract

The combination of theoretical research and finite element simulation is used in this work to study the fatigue damage behavior of active jet engine chevron. The main research contents are as follows:
Firstly, the thermo-mechanical constitutive model is developed to describe the behavior of shape memory alloys considering the damage. Based on the continuum damage mechanics theory, assumed that when the damage happens, the mass density, the elastic compliance tensor, the thermal expansion coefficient tensor, the specific heat, the specific entropy and the maximum phase change strain are all caused damage. The model is started from the second law of thermodynamics, a detailed procedure for the estimation of the stress-strain relationship is presented while the plastic strain caused by phase change is ignored. Secondly, numerical results of the stress-strain relationship for the shape memory alloys under different damage extent are discussed.
Finally, a finite element model of the jet engine chevron is established, the fatigue damage behaviors of active jet engine chevron are studied under the cycle loadings, and the tip deflection of the jet engine chevron when the fatigue damage happened is discussed.

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Metadata
Title
Studies on the Fatigue Damage Behavior of Active Jet Engine Chevron
Authors
Bingfei Liu
Shangyang Jin
Shaozhe Dong
Zhenyu Feng
Copyright Year
2020
Book
ICAF 2019 – Structural Integrity in the Age of Additive Manufacturing

Print ISBN: 978-3-030-21502-6

Electronic ISBN: 978-3-030-21503-3

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-3-030-21503-3_11

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