玻璃纤维模拟壳体内压承载寿命定量评估方法研究

玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (4): 64-67.

玻璃纤维模拟壳体内压承载寿命定量评估方法研究

李静,张漩,陈国军^*

中国航天科工集团第六研究院41所,呼和浩特010010

收稿日期:2015-12-11 出版日期:2016-04-28 发布日期:2016-04-28
通讯作者: 陈国军(1988-),男,硕士,工程师,主要从事固体火箭发动机壳体方面的研究,importantplh@163.com。
作者简介:李静(1970-),女,高级工程师,主要从事固体火箭发动机壳体方面的研究。
基金资助:
装备共用技术(513280102)

QUANTITATIVE ASSESSMENT METHOD STUDY IN THE PRESSURE BEARINGLIFE OF FIBERGLASS SIMULATION CASE

LI Jing, ZHANG Xuan, CHEN Guo-jun^*

The 41st Institute of NO.6 Academy China Aerospace Science & Industry Corp, Hohhot 010010, China

Received:2015-12-11 Online:2016-04-28 Published:2016-04-28

摘要/Abstract

摘要： 在定湿度条件下对模拟壳体进行湿热加速老化试验及水压爆破试验,对各老化温度下的爆破压强-老化时间进行回归分析,得到各温度的老化方程及性能变化系数;对性能变化系数与老化温度进行回归分析,外推得到常温下的壳体性能变化系数,进而得到常温下的内压承载老化方程。通过相关指数判定,各回归曲线的关系显著。通过模拟壳体湿热加速老化试验后及自然存放模拟壳体的爆破压强数据对老化方程进行修正。研究表明,玻璃纤维模拟壳体爆破压强与时间成对数关系,全尺寸玻璃纤维壳体初始爆破压强为9.97MPa,预估存放20年后爆破压强下降9.5%。

关键词: 纤维壳体, 寿命评估, 方法研究

Abstract: Fiberglass simulation cases have undergone heat accelerated aging test and hydraulic blasting tests in different temperature conditions. By blasting pressure-aging time regression analysis in different aging temperature, aging equation and performance coefficient of variation were obtained. Based on the aging equation and performance coefficient of variation regression analysis, case performance coefficient of variation in normal temperature was extrapolated, and then the internal pressure bearing age equation in normal temperature was obtained. The relationship between the regression curve judged by the relevant index was obvious. Based on the blasting pressure data of simulation cases after accelerated aging test in heat-humid environment and natural storage case, aging equation was fixed. Studies have shown that fiberglass case burst pressure and reservoir simulation time performed logarithmic relationship, full-size fiberglass shell burst pressure was 9.97 MPa in the initial state, and it was predited that the full-size fiberglass shell burst pressure decreases 9.5% 20 years later.

Key words: fiberglass case, life assessment, method study

中图分类号:

TB332

李静,张漩,陈国军. 玻璃纤维模拟壳体内压承载寿命定量评估方法研究[J]. 玻璃钢/复合材料, 2016, 0(4): 64-67.

LI Jing, ZHANG Xuan, CHEN Guo-jun. QUANTITATIVE ASSESSMENT METHOD STUDY IN THE PRESSURE BEARINGLIFE OF FIBERGLASS SIMULATION CASE[J]. Fiber Reinforced Plastics/Composites, 2016, 0(4): 64-67.

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