复合固体推进剂细观结构建模及脱黏过程数值模拟

封涛; 郑健; 许进升; 韩龙; 康娜

doi:10.13224/j.cnki.jasp.2018.01.027

复合固体推进剂细观结构建模及脱黏过程数值模拟

doi: 10.13224/j.cnki.jasp.2018.01.027

封涛¹,
郑健¹,
许进升¹,
韩龙¹,
康娜²

1.
南京理工大学机械工程学院,南京 210094
2.
中国兵器工业集团北方华安工业集团有限公司,黑龙江齐齐哈尔 161046

基金项目: 国家自然科学基金（51606098）；江苏省自然科学基金（BK20140772）；中央高校基本科研业务费专项资金（30915011301,30915118805）

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出版历程
- 收稿日期: 2016-11-17
- 刊出日期: 2018-01-28

Mesoscopic structure modeling and numerical simulation of debonding process of composite solid propellants

摘要

摘要: 为研究复合固体推进剂损伤演化规律,基于分子动力学颗粒填充算法构建了HTPB(hydroxylterminated polybutadiene)推进剂细观结构模型,通过在AP(ammonium perchlorate)颗粒/HTPB基体界面处引入黏接接触替代传统的黏接单元,并基于HookeJeeves的参数优化算法反演得到颗粒/基体界面处内聚力模型参数,利用双线性和自定义指数型损伤内聚力模型模拟了AP颗粒和HTPB基体黏接界面处损伤的萌生、发展、聚合直至宏观裂纹破坏的过程。通过数值仿真与实验结果对比发现,指数型损伤内聚力模型比双线性模型能更准确描述推进剂单轴拉伸过程中颗粒与HTPB基体界面间脱黏过程。最后对比了多阶段加载实验结果与仿真结果曲线,发现两者变化趋势基本一致,最大偏差仅为10%,验证了所建细观模型的可靠性及反演所得界面参数的准确性。
- 复合固体推进剂 /
- 细观建模 /
- 脱黏 /
- 有限元数值仿真 /
- 内聚力模型 /
- 参数反演识别
Abstract: To study the damage evolution law of composite solid propellants, the mesoscopic structure model for HTPB(hydroxylterminated polybutadiene) propellants was established based on the molecular dynamics particle filled algorithm. The adhesive contact method was employed for the adhesion interface between AP(ammonium perchlorate) particle and HTPB matrix, instead of the traditional cohesive element method, and the HookeJeeves optimization algorithm was used to identify the parameters of cohesive zone model of the particles/matrix interface. Then both bilinear cohesive zone model and the selfdefined exponential cohesive zone model were employed to simulate the damage evolution process for the interface of AP particle and HTPB matrix, including the initiation, development, gathering and macroscopic crack. The numerical simulation curves and experimental curves were compared, showing that the exponential cohesive zone model can better describe the debonding process between the AP particles and HTPB matrix under the uniaxial tension loading. Finally, the multistage loading experiment was compared with the simulation curve. It was found that the change trend was consistent and the tolerance was less than 10%, demonstrating the high reliability of mesoscopic model and the interface parameters accuracy.
- composite solid propellant /
- mesoscopic modeling /
- debonding /
- finite element numerical simulation /
- cohesive zone model /
- parametric inversing identification

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参考文献(20)

[1]	RAE P J,GOLDREIN H T,PALMER S J P,et al.Quasistatic studies of the deformation and failure of HMX based polymer bonded explosives［J］.Proceedings of the Royal Society A:Mathamatic,Physical and Engineering Sciences,2002,458(2019):743-762.
[2]	曾甲牙.固体填充剂对推进剂力学性能的影响［J］.固体火箭技术,2002,25(1):46-50.ZENG Jiaya.Effect of solid filler on mechanical properties of propellants［J］.Journal of Solid Rocket Technology,2002,25(1):46-50.(in Chinese)
[3]	袁嵩,汤卫红,李高春.复合推进剂的细观失效机理分析［J］.固体火箭技术,2006,29(1):48-51.YUAN Song,TANG Weihong,LI Gaochun.Analysis on micromechanical failure mechanisms of composite propellant［J］.Journal of Solid Rocket Technology,2006,29(1):48-51.(in Chinese)
[4]	MATOU K,INGLIS H M,GU X,et al.Multiscale modeling of solid propellants:from particle packing to failure［J］.Composites Science and Technology,2007,67(7/8):1694-1708.
[5]	TAN H,HUANG Y,LIU C,et al.The uniaxial tension of particulate composite materials with nonlinear interface debonding［J］.International Journal of Solids and Structures,2007,44(6):1809-1822.
[6]	李高春,邢耀国,戢治洪,等.复合固体推进剂细观界面脱粘有限元分析［J］.复合材料学报,2011,28(3):229-235.LI Gaochun,XING Yaoguo,JI Zhihong,et al.Finite element analysis of microscale intertacial debonding in composite solid propellants［J］.Acta Material Compositae Sinica,2011,28(3):229-235.(in Chinese)
[7]	张建伟,职世君,孙冰.基于细观颗粒夹杂模型的复合固体推进剂松弛模量预测［J］.航空动力学报,2013,28(10):2370-2375.ZHANG Jianwei,ZHI Shijun,SUN Bing.Estimation of relaxation modulus of composite solid propellant based on particle packing model［J］.Journal of Aerospace Power,2013,28(10):2370-2375.(in Chinese)
[8]	职世君,孙冰,张建伟.基于表面粘结损伤的复合固体推进剂细观损伤数值模拟［J］.推进技术,2013,34(2):273-279.ZHI Shijun,SUN Bing,ZHANG Jianwei.Numerical simulation of solid propellant mesoscopic damage using surfacebased cohesive approach［J］.Journal of Propulsion Technology,2013,34(2):273-279.(in Chinese)
[9]	韦震.推进剂细观粘接界面力学模型及参数获取方法研究［D］.南京:南京理工大学,2014.WEI Zhen.Research on the model and parameters acquisition of the meso interface properties of composite propellant［D］.Nanjing:Nanjing University of Science and Technology,2014.(in Chinese)
[10]	FISH J.Multiscale modeling and simulation of composite materials and structures［J］.Multiscale Methods in Computational Mechanics,2008,55:215-231.
[11]	LUBACHEVSKY B D,STILLINGER F H.Geometric properties of random disk packings［J］.Journal of Statistical Physics,1990,60(5):561-583.
[12]	KNOTT G M,JACKSON T L,BUCKMASTER J.Random packing of heterogeneous propellants［J］.AIAA Journal,2001,39(4):678-686.
[13]	KOCHEVETS S.Random sphere packing model of heterogeneous propellants［D］.UrbanChampaign,US:University of Illinois at UrbanaChampaign,2002.
[14]	ZHI S J,SUN B,ZHANG J W.Multiscale modeling of heterogeneous propellants from particle packing to grain failure using a surfacebased cohesive approach［J］.Acta Mechanica Sinica,2012,28(3):746-759.
[15]	BARENBLATT G I.The mathematical theory of equilibrium cracks in brittle fracture［J］.Advances in Applied Mechanics,1962,7:55-129.
[16]	HAN B,JU Y,ZHOU C.Simulation of crack propagation in HTPB propellant using cohesive zone model［J］.Engineering Failure Analysis,2012,26(12):304-317.
[17]	常武军.复合固体推进剂细观损伤及其数值仿真研究［D］.南京:南京理工大学,2013.CHANG Wujun.Research on microstructural damage and its numerical simulation method for composite solid propellant［D］.Nanjing:Nanjing University of Science and Technology,2013.(in Chinese)
[18]	许进升,鞠玉涛,郑健,等.复合固体推进剂松弛模量的获取方法［J］.火炸药学报,2011,34(5):58-62.XU Jinsheng,JU Yutao,ZHENG Jian,et al.Acquisition of the relaxation modulus of composite solid propellant［J］.Chinese Journal of Explosives and Propellants,2011,34(5):58-62.(in Chinese)
[19]	JUNG G D,YOUN S K.A nonlinear viscoelastic constitutive model of solid propellant［J］.International Journal of Solids and Structures,1999,36(25):3755-3777.
[20]	周清春,鞠玉涛,周长省.基于HookeJeeves算法的挠性粘接件的高效内聚反演分析［J］.工程力学,2015,32(4):1-7.ZHOU Qingchun,JU Yutao,ZHOU Changsheng.An effective inverse analysis of cohesive parameters of flexible adhesive joints based on the HookeJeeves algorithm［J］.Engineering Mechanics,2015,32(4):1-7.(in Chinese)