Time-Temperature Equivalent Research of Nonlinear Viscoelastic Properties of HTPB Propellant

被引：0
作者：
Cao Y.-J. [1 ]
Huang W.-D. [1 ]
Li J.-F. [1 ]
机构：
[1] Department of Aircraft Engineering, Naval Aeronautical Engineering Institute, Yantai
来源：
Tuijin Jishu/Journal of Propulsion Technology | 2018年 / 39卷 / 07期
关键词：
Creep; HTPB propellant; Nonlinear; Time-temperature equivalent effect; Viscoelastic property;
D O I：
10.13675/j.cnki.tjjs.2018.07.024
中图分类号：
学科分类号：
摘要：
In order to study the time-temperature equivalent effect of HTPB propellant among the viscoelastic process, the time-temperature equivalent mathematical expressions based on single- integral nonlinear constitutive equation of Schapery was deduced, and the creep compliance master curve fitting method was given. The creep experiments under different stress(0.1MPa, 0.2MPa, 0.3MPa) and temperature(20℃, 40℃, 60℃, 80℃) levels were conducted to obtain the creep compliance-time logarithmic curve and the creep compliance master curve when the reference temperature was 20℃. The repeated loading creep experiments were conducted to analyze the load change on the influence of creep process. The results show that there is a good consistency on the master curves under the different temperature levels. The main curve time scales in the 0.1MPa, 0.2MPa and 0.3MPa stress conditions extends from the test time 103s to 104.27s, 104.17s and 103.91s. High-speed stress release and loading process will not affect the whole creep process, there is a good continuity in the time-temperature equivalent effect. © 2018, Editorial Department of Journal of Propulsion Technology. All right reserved.
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页码：1643 / 1649
页数：6
相关论文
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