秦玉灵,宫晓春,李晓东,王巨民,渠弘毅.某型硬质泡沫弹架蠕变特性及贮存寿命研究[J].装备环境工程,2022,19(4):22-27. QIN Yu-ling,GONG Xiao-chun,LI Xiao-dong,WANG Ju-min,QU Hong-yi.Creep Properties and Accelerated Storage Test Method of Rigid Foam Cartridge[J].Equipment Environmental Engineering,2022,19(4):22-27.
某型硬质泡沫弹架蠕变特性及贮存寿命研究
Creep Properties and Accelerated Storage Test Method of Rigid Foam Cartridge
投稿时间:2021-12-20  修订日期:2022-02-27
DOI:10.7643/issn.1672-9242.2022.04.004
中文关键词:  硬质泡沫弹架  蠕变特性  本构关系  时温等效  加速贮存中图分类号:TJ089 文献标识码:A 文章编号:1672-9242(2022)04-0022-06
英文关键词:rigid foam cartridge  creep characteristics  constitutive relation  temperature-time equivalent  accelerated storage
基金项目:国防基础科研项目(11172046)
作者单位
秦玉灵 北京航天长征飞行器研究所,北京 100076 
宫晓春 北京强度环境研究所,北京 100076 
李晓东 北京航天长征飞行器研究所,北京 100076 
王巨民 北京航天长征飞行器研究所,北京 100076 
渠弘毅 北京航天长征飞行器研究所,北京 100076 
AuthorInstitution
QIN Yu-ling Beijing Institute of Space Long March Vehicle, Beijing 100076, China 
GONG Xiao-chun Beijing Institute of Structure and Environment Engineering, Beijing 100076, China 
LI Xiao-dong Beijing Institute of Space Long March Vehicle, Beijing 100076, China 
WANG Ju-min Beijing Institute of Space Long March Vehicle, Beijing 100076, China 
QU Hong-yi Beijing Institute of Space Long March Vehicle, Beijing 100076, China 
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中文摘要:
      目的 研究一类硬质泡沫弹架结构的蠕变特性和贮存寿命评估方法。方法 通过测定贮存恒定应力水平下该型硬质泡沫弹架的温度加速蠕变性能数据,建立泡沫弹架材料的蠕变本构关系,研究泡沫弹架材料的蠕变时温等效规律。在此基础上,开展泡沫弹架的高温加速贮存试验与评估方法研究。结果 在高温蠕变试验后,该型硬质泡沫材料的本构关系及压缩特性均未发生明显变化,蠕变特性是影响硬质泡沫材料长贮失效关键敏感因素。结论 根据时温等效原理和WLF方程,设计并开展了硬质泡沫弹架的加速贮存试验,研究成果为系统级弹架结构的贮存寿命评定与延寿研究提供技术支撑。
英文摘要:
      The creep characteristics and the evaluation method of storage life to rigid foams were researched in this paper. The creep constitutive relation of the foam bombardment materials was established based on the creep performance data by measuring the rigid foam bombs at a constant temperature stress level. Then the temperature-time equivalent theory and the high temperature accelerated storage test method of the foam shells were studied. The creep constitutive relation and the compressive parameter of the rigid foam made no evident change after the high temperature creep test. The creep characteristics were the key sensitive factors affecting the long-term storage failure of rigid foams. The accelerated storage method of the rigid foam cartridge based on the temperature-time equivalent theory and the WLF equation was worked out to support the storage life assessment and life extension research of the entire cartridge structure.
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