HTPB推进剂/衬层粘接试件变形破坏过程试验与数值模拟

doi:10.3969/j.issn.1000-1093.2014.10.015

兵工学报 ›› 2014, Vol. 35 ›› Issue (10): 1619-1624.doi: 10.3969/j.issn.1000-1093.2014.10.015

HTPB推进剂/衬层粘接试件变形破坏过程试验与数值模拟

姜爱民，李高春，黄卫东，邱欣

（海军航空工程学院飞行器工程系，山东烟台 264001）

收稿日期:2013-10-28 修回日期:2013-10-28 上线日期:2014-11-28
通讯作者: 姜爱民 E-mail:jiangaimin98@126.com
作者简介:姜爱民(1970—)，女，副教授，博士研究生

Experimental and Numerical Simulation on Deformation and Debonding Processes of HTPB Propellant/Liner Adhesive Specimen

JIANG Ai-min， LI Gao-chun， HUANG Wei-dong， QIU Xin

(Department of Aircraft Engineering, Naval Aeronautical and Astronautical University, Yantai 264001, Shandong, China)

Received:2013-10-28 Revised:2013-10-28 Online:2014-11-28
Contact: JIANG Ai-min E-mail:jiangaimin98@126.com

摘要/Abstract

摘要： 为得到粘接界面的力学行为和破坏模式，对HTPB推进剂/衬层粘接试件进行了单向拉伸宏观观察试验，获得不同拉伸阶段的变形图片，记录了界面破坏的全过程；使用界面元模型表征推进剂/衬层界面，数值模拟了粘接界面试件在单向拉伸作用下的脱粘过程。结果表明：界面拉伸变形破坏过程表现为裂纹的起裂、扩展和失效；粘接试件的拉伸应力-应变曲线表现出明显的非线性特征；数值计算结果与试验得到的应力-应变曲线及试件宏观变形失效形态一致。为得到粘接界面的力学行为和破坏模式，对HTPB推进剂/衬层粘接试件进行了单向拉伸宏观观察试验，获得不同拉伸阶段的变形图片，记录了界面破坏的全过程；使用界面元模型表征推进剂/衬层界面，数值模拟了粘接界面试件在单向拉伸作用下的脱粘过程。结果表明：界面拉伸变形破坏过程表现为裂纹的起裂、扩展和失效；粘接试件的拉伸应力-应变曲线表现出明显的非线性特征；数值计算结果与试验得到的应力-应变曲线及试件宏观变形失效形态一致。

关键词: 兵器科学与技术, 粘接试件, 脱粘, 界面元

Abstract: In order to obtain the mechanical behavior and failure mode of interface, the uniaxial tension experiments are conducted on HTPB propellant/liner adhesive specimen. The deformation images of various stages are achieved, and the debonding process is observed macroscopically. A cohesive element model is adopted to simulate propellant/liner interface. The results show that the failure mode experiences damage initiation, damage evolution and debonding, and the stress-strain response of adhesive specimen has a distinct nonlinear characteristic. The simulated results of stress-strain response and deformation are consistent with the data obtained from experiment.

Key words: ordnance science and technology, adhesive specimen, debonding, cohesive element

中图分类号:

V512

姜爱民，李高春，黄卫东，邱欣. HTPB推进剂/衬层粘接试件变形破坏过程试验与数值模拟[J]. 兵工学报, 2014, 35(10): 1619-1624.

JIANG Ai-min， LI Gao-chun， HUANG Wei-dong， QIU Xin. Experimental and Numerical Simulation on Deformation and Debonding Processes of HTPB Propellant/Liner Adhesive Specimen[J]. Acta Armamentarii, 2014, 35(10): 1619-1624.

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HTPB推进剂/衬层粘接试件变形破坏过程试验与数值模拟

Experimental and Numerical Simulation on Deformation and Debonding Processes of HTPB Propellant/Liner Adhesive Specimen

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