Accelerated Aging Testing Method Research on Composite Propellant under Cyclic Temperature Load
Accelerated aging test under cyclic temperature load was designed to ensure that accelerated aging could preferably simulate natural storage of HTPB composite propellant. The aging test was designed in the temperature range from -10℃ to 60℃ at three different rate-temperature. Mechanical properties of HTPB propellant were measured and analyzed. The test process was analyzed by numerical simulation. The correlation between accelerated aging and natural storage was analyzed in terms of elongation. The results indicate that the tensile strength increased and the elongation decreased after accelerated aging, showing the same trend of natural storage; the mechanical properties of HTPB propellant is strongly influenced by the rate-temperature; adhesive interphase is prone to failure because of the alternating stress, temperature cycling accelerated aging test is consistent well with natural storage. The results can be very helpful for solid rocket motor life prediction.
DING Biao LIU Zhuqing QIU Xin LI Gaochun
Department of Airborne Vehicle Engineering, Naval Aeronautical and Astronautical University,Yantai 264001, Shandong, China
国际会议
2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)
南京
英文
268-273
2011-09-20（万方平台首次上网日期，不代表论文的发表时间）