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© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Rocket engine thrust chambers withstand very high temperatures and thermal gradients during service that induce multiple damaging phenomena such as plasticity, low-cycle-fatigue (LCF) and creep. Numerical models can be used during the design of these mechanical components in order to simulate the main mechanical damaging processes, accounting for complex material behavior as due to non-linear hardening phenomena and viscoplasticity. This work represents an improvement upon previous research by the authors, with particular reference to the addition of the Wang–Brown fatigue criterion, to consider the effects of multiaxiality and non-proportionality of loads, and the Voce model to account for non-linear isotropic hardening. A precipitation hardened copper alloy has been considered as the material of the thrust chamber internal structure. The most critical areas resulted to be on the internal surface of the chamber and in particular in correspondence of the throat region, consistently with experimental tests available in the literature conducted on similar geometries. Results demonstrated that low cycle fatigue and thermal ratcheting (plastic instability) are the dominant damaging phenomena for the considered test case.

Details

Title
Numerical Investigation on the Service Life of a Liquid Rocket Engine Thrust Chamber
Author
Ferraiuolo, Michele 1   VIAFID ORCID Logo  ; Giannella, Venanzio 2   VIAFID ORCID Logo  ; Armentani, Enrico 3   VIAFID ORCID Logo  ; Citarella, Roberto 2   VIAFID ORCID Logo 

 Italian Aerospace Research Center (CIRA), Thermostructures and Thermal Control Technologies and Design Lab., Via Maiorise snc, 81043 Capua, CE, Italy 
 Department of Industrial Engineering, University of Salerno, 84084 Fisciano, SA, Italy 
 Department of Chemical, Materials and Production Engineering, University of Naples Federico II, 80125 Naples, NA, Italy 
First page
470
Publication year
2023
Publication date
2023
Publisher
MDPI AG
e-ISSN
20754701
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2791679340
Copyright
© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.