Journal of Projectiles, Rockets, Missiles and Guidance >
The Research on Mechanical Model of EPDM Insulation Charring-layer
Received date: 2011-08-11
Online published: 2025-05-29
The coupling effect of physics, chemistry and mechanics is through charring layer in the process of ablation of the insulation material. Description of the structure and mechanical properties of charring layer are the critical factor to numerical computation for foretelling the ablation of insulation material. The characteristics of charring layer structure of EPDM insulation under sorts of ablating conditions were analyzed, and based on characteristic of porous medium of charring layer, the mechanical model with porosity as parameter was modeled by using theory of solid porous medium. According to the intensity determination of charring layer, the coefficient of intensity model was determined, then, the failure criterion of charring layer was set up, which can provide mechanical parameters of charring layer for numerical computation to foretell the ablation of insulation material.
XU Yihua , HU Chunbo , ZENG Zhuoxiong , YANG Yuxin . The Research on Mechanical Model of EPDM Insulation Charring-layer[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2012 , 32(3) : 237 -242 . DOI: 10.15892/j.cnki.djzdxb.2012.03.028
| [1] | 赵晓莉, 岳红, 张兴航, 等. 三元乙丙橡胶绝热层耐烧蚀性能的研究评述[J]. 材料科学与工程学报, 2005, 23(2): 310-312. |
| [2] | 付东升, 奚建明, 李媛. EPDM 绝热材料耐烧蚀性能影响因素研究进展[J]. 化学推进剂与高分子材料, 2007, 5(5): 12-15. |
| [3] | Ballinger I A, Sims D. Development of an enhanced EPDM elastomeric material for use in hydrazine propulsion systems, AIAA 99-2830 R. 1999. |
| [4] | Yezzi C A, Moore B B. Characterization of Kevlar/EPDM Rubbers for use as rocket motor case insulators, AIAA-86-1489 [R]. 1986. |
| [5] | 陈剑, 李江, 李强, 等. EPDM 绝热材料炭化层结构特征及其对烧蚀的影响[J]. 固体火箭技术, 2011, 34(1): 122-125. |
| [6] | 王书贤,何国强,李江,等. 单纯热化学烧蚀环境下EPDM绝热材料炭化层结构特征分析[J]. 固体火箭技术, 2010, 33(2): 214-217. |
| [7] | 王书贤,何国强,刘佩进,等. 气相燃气速度对EPDM绝热材料烧蚀的影响[J]. 推进技术,2010,31 (2): 235-239. |
| [8] | Wang Shu-xian,He Guo-qiang,Li Jiang,et al. Experimental investigation on ablation characteristic of EPDM insulator in different gas environments[J]. Journal of China Ordnance,2010,6( 2) : 109-113. |
| [9] | XU Yihua,HU Chunbo,ZHANG Shengmin,et al. Experimental research on the dynamic erosion of EPDM insulation impacted by particle-laden flow[J]. Journal of China Ordnance, 2010,6 (4): 225-233. |
| [10] | 陈剑,杨飒,李江,等. 基于烧蚀发动机的EPDM 烧蚀性能试验研究[J]. 固体火箭技术,2010,33 (5): 586-593. |
| [11] | 王娟,李江,刘洋,等. 模拟过载条件下EPDM 绝热层烧蚀实验[J]. 推进技术,2010, 31(4): 618-622. |
| [12] | 徐义华,胡春波,李江,等. 纤维和SiO2 填料对EPDM绝热材料烧蚀性能影响的实验研究[J]. 西北工业大 学学报, 2010, 28(4): 491-496. |
| [13] | 李强,冯茵,李江,等. 以基于孔隙结构特征的EPDM绝热材料热化学烧蚀模型[J]. 固体火箭技术,2010, 33(6): 580-683. |
| [14] | 江东亮,李龙土,欧阳世翕,等. 中国材料工程大典(第8卷无机非金属材料工程) [M]. 北京: 化学工业出 版社, 2005,Vol. 9. |
| [15] | Lorna J Gibson,Michael F Ashby. 多孔固体结构与性能 [M]. 刘培生,译. 2版. 北京: 清华大学出版社,2003. |
| [16] | 徐义华,胡春波,李江. 粒子侵蚀下三元乙丙绝热材料炭化层破坏特性实验研究[J]. 工程力学,2011,28(5): 251-256. |
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