| RDX/AMMO推进剂的分子动力学 |
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| 引用本文： | 李凤生,李苗苗,沈瑞琪. RDX/AMMO推进剂的分子动力学[J]. 化学物理学报(中文版), 2011, 24(2): 199-205. DOI: 10.1088/1674-0068/24/02/199-205 |
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| 作者姓名： | 李凤生 李苗苗 沈瑞琪 |
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| 摘 要： |
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| 收稿时间： | 2011-01-11 |
Molecular Dynamics Study of RDX/AMMO Propellant |
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| Miao-miao Li,Feng-sheng Li,Rui-qi Shen. Molecular Dynamics Study of RDX/AMMO Propellant[J]. Chinese Journal of Chemical Physics, 2011, 24(2): 199-205. DOI: 10.1088/1674-0068/24/02/199-205 |
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| Authors: | Miao-miao Li Feng-sheng Li Rui-qi Shen |
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| Affiliation: | School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China |
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| Abstract: | Molecular dynamics simulations have been performed to investigate well-known ener-getic material cyclotrimethylene trinitramine (RDX) crystal, 3-azidomethyl-3-methyloxetane (AMMO) and RDX/AMMO propellant. The results show that the binding energies on differ-ent crystalline surface of RDX changes in the order of (010)>(100)>(001). The interactions between RDX and AMMO have been analyzed by means of pair correlation functions. The mechanical properties of RDX/AMMO propellant, i.e. elastic coefficients, modulus, Cauchypressure, and Poisson's ratio, etc., have been obtained. It is found that mechanical properties are effectively improved by adding some amounts of AMMO polymers, and the overall effect of AMMO on three crystalline surfaces of RDX changes in the order of (100)>(010)>(001). The energetic properties of RDX/AMMO propellant have also been calculated and the results show that compared with the pure RDX crystal, the standard theoretical specific impulse of RDX/AMMO propellant decrease, but they are still superior to those of double base propellant. |
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| Keywords: | Cyclotrimethylene trinitramine 3-Azidomethyl-3-methyloxetane Molecular dynamics Mechanical property Binding energy |
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