Effective Mechanical Property Estimation of Composite Solid Propellants Based on VCFEM
A solid rocket motor is one of the critical components of solid missiles, and its life and reliability mostly depend on the mechanical behavior of a composite solid propellant (CSP). Effective mechanical properties are critical material constants to analyze the structural integrity of propellant gra...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/2050876 |
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| author | Liu-Lei Shen Zhi-Bin Shen Yan Xie Hai-Yang Li |
| author_facet | Liu-Lei Shen Zhi-Bin Shen Yan Xie Hai-Yang Li |
| author_sort | Liu-Lei Shen |
| collection | DOAJ |
| description | A solid rocket motor is one of the critical components of solid missiles, and its life and reliability mostly depend on the mechanical behavior of a composite solid propellant (CSP). Effective mechanical properties are critical material constants to analyze the structural integrity of propellant grain. They are estimated by a numerical method that combines the Voronoi cell finite element method (VCFEM) and the homogenization method in the present paper. The correctness of this combined method has been validated by comparing with a standard finite element method and conventional theoretical models. The effective modulus and the effective Poisson’s ratio of a CSP varying with volume fraction and component material properties are estimated. The result indicates that the variations of the volume fraction of inclusions and the properties of the matrix have obvious influences on the effective mechanical properties of a CSP. The microscopic numerical analysis method proposed in this paper can also be used to provide references for the design and the analysis of other large volume fraction composite materials. |
| format | Article |
| id | doaj-art-6a9cd814bb2a471ea5d666c49694336c |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-6a9cd814bb2a471ea5d666c49694336c2025-08-20T03:33:41ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742018-01-01201810.1155/2018/20508762050876Effective Mechanical Property Estimation of Composite Solid Propellants Based on VCFEMLiu-Lei Shen0Zhi-Bin Shen1Yan Xie2Hai-Yang Li3College of Aeronautics and Astronautics, National University of Defense Technology, Changsha, Hunan, ChinaCollege of Aeronautics and Astronautics, National University of Defense Technology, Changsha, Hunan, ChinaCollege of Aeronautics and Astronautics, National University of Defense Technology, Changsha, Hunan, ChinaCollege of Aeronautics and Astronautics, National University of Defense Technology, Changsha, Hunan, ChinaA solid rocket motor is one of the critical components of solid missiles, and its life and reliability mostly depend on the mechanical behavior of a composite solid propellant (CSP). Effective mechanical properties are critical material constants to analyze the structural integrity of propellant grain. They are estimated by a numerical method that combines the Voronoi cell finite element method (VCFEM) and the homogenization method in the present paper. The correctness of this combined method has been validated by comparing with a standard finite element method and conventional theoretical models. The effective modulus and the effective Poisson’s ratio of a CSP varying with volume fraction and component material properties are estimated. The result indicates that the variations of the volume fraction of inclusions and the properties of the matrix have obvious influences on the effective mechanical properties of a CSP. The microscopic numerical analysis method proposed in this paper can also be used to provide references for the design and the analysis of other large volume fraction composite materials.http://dx.doi.org/10.1155/2018/2050876 |
| spellingShingle | Liu-Lei Shen Zhi-Bin Shen Yan Xie Hai-Yang Li Effective Mechanical Property Estimation of Composite Solid Propellants Based on VCFEM International Journal of Aerospace Engineering |
| title | Effective Mechanical Property Estimation of Composite Solid Propellants Based on VCFEM |
| title_full | Effective Mechanical Property Estimation of Composite Solid Propellants Based on VCFEM |
| title_fullStr | Effective Mechanical Property Estimation of Composite Solid Propellants Based on VCFEM |
| title_full_unstemmed | Effective Mechanical Property Estimation of Composite Solid Propellants Based on VCFEM |
| title_short | Effective Mechanical Property Estimation of Composite Solid Propellants Based on VCFEM |
| title_sort | effective mechanical property estimation of composite solid propellants based on vcfem |
| url | http://dx.doi.org/10.1155/2018/2050876 |
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