Constitutive Model and Deformation Characteristics of a Throat Insert Made of the C/C Composite

Axial braided C/C composite materials are widely applied in the throat insert of solid rocket motors. It is the key for the development and design of solid rocket motors to characterize accurately the macromechanical properties of the materials. The Jones-Nelson model is employed to characterize the...

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Main Authors: Weiping Tian, Chunguang Wang
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:International Journal of Aerospace Engineering
Online Access:http://dx.doi.org/10.1155/2021/9510768
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author Weiping Tian
Chunguang Wang
author_facet Weiping Tian
Chunguang Wang
author_sort Weiping Tian
collection DOAJ
description Axial braided C/C composite materials are widely applied in the throat insert of solid rocket motors. It is the key for the development and design of solid rocket motors to characterize accurately the macromechanical properties of the materials. The Jones-Nelson model is employed to characterize the constitutive relation of the axial braided C/C composite material in this paper. The Jones-Nelson model is expanded and modified to characterize the C/C composite under complex load conditions. The typical external load tests were carried out to verify the accuracy. On this basis, the deformation features of the axial braided C/C composite throat insert are investigated during the working process of motors, and the strain of the throat insert during the working process is obtained by FEM. The strain and temperature in the outer surface of the throat insert are measured in the ground test of motors and are compared with the numerical results by FEM to verify the accuracy of the model. The results show that the result calculated based on the modified Jones-Nelson model by FEM is in a good agreement with the test result. It shows that the modified Jones-Nelson model can better describe the constitutive relation of C/C composite materials, and it can be promoted to the engineering application of the throat insert of solid rocket motors.
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spelling doaj-art-4274293d27784b6daace8cc3afc8e8872025-02-03T07:24:12ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742021-01-01202110.1155/2021/95107689510768Constitutive Model and Deformation Characteristics of a Throat Insert Made of the C/C CompositeWeiping Tian0Chunguang Wang1The Fourth Academy of China Aerospace Science and Technology Corporation, Xi’an 710025, ChinaState Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaAxial braided C/C composite materials are widely applied in the throat insert of solid rocket motors. It is the key for the development and design of solid rocket motors to characterize accurately the macromechanical properties of the materials. The Jones-Nelson model is employed to characterize the constitutive relation of the axial braided C/C composite material in this paper. The Jones-Nelson model is expanded and modified to characterize the C/C composite under complex load conditions. The typical external load tests were carried out to verify the accuracy. On this basis, the deformation features of the axial braided C/C composite throat insert are investigated during the working process of motors, and the strain of the throat insert during the working process is obtained by FEM. The strain and temperature in the outer surface of the throat insert are measured in the ground test of motors and are compared with the numerical results by FEM to verify the accuracy of the model. The results show that the result calculated based on the modified Jones-Nelson model by FEM is in a good agreement with the test result. It shows that the modified Jones-Nelson model can better describe the constitutive relation of C/C composite materials, and it can be promoted to the engineering application of the throat insert of solid rocket motors.http://dx.doi.org/10.1155/2021/9510768
spellingShingle Weiping Tian
Chunguang Wang
Constitutive Model and Deformation Characteristics of a Throat Insert Made of the C/C Composite
International Journal of Aerospace Engineering
title Constitutive Model and Deformation Characteristics of a Throat Insert Made of the C/C Composite
title_full Constitutive Model and Deformation Characteristics of a Throat Insert Made of the C/C Composite
title_fullStr Constitutive Model and Deformation Characteristics of a Throat Insert Made of the C/C Composite
title_full_unstemmed Constitutive Model and Deformation Characteristics of a Throat Insert Made of the C/C Composite
title_short Constitutive Model and Deformation Characteristics of a Throat Insert Made of the C/C Composite
title_sort constitutive model and deformation characteristics of a throat insert made of the c c composite
url http://dx.doi.org/10.1155/2021/9510768
work_keys_str_mv AT weipingtian constitutivemodelanddeformationcharacteristicsofathroatinsertmadeofthecccomposite
AT chunguangwang constitutivemodelanddeformationcharacteristicsofathroatinsertmadeofthecccomposite