| 定应力和拉伸速率对复合固体推进剂反复拉伸试验的影响 |
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| 引用本文： | 曲凯,张旭东,李高春. 定应力和拉伸速率对复合固体推进剂反复拉伸试验的影响[J]. 火炸药学报, 2011, 34(3): 79-82 |
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| 作者姓名： | 曲凯 张旭东 李高春 |
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| 作者单位： | 海军航空工程学院飞行器工程系,山东烟台,264001 |
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| 基金项目： | 海军航空工程学院青年基金(4142D22) |
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| 摘 要： | 为了获得交变应力作用下推进剂的疲劳性能参数,利用材料试验机对推进剂试件进行了反复拉伸试验,考察了定应力和拉伸速率对推进剂疲劳破坏的影响.结果表明,当拉伸速率一定时,推进剂试件所受的定应力越大,其循环破坏次数越少,而且应力水平和循环破坏次数的自然对数符合指数函数关系；当应力不变时,拉伸速率越快推进剂试件越容易发生破坏.试...
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| 关 键 词： | 材料科学 复合固体推进剂 定应力 拉伸速率 循环加载 应力—应变 |
Effect of Fixed Stress and Tensile Rate on Composite Solid Propellant Cyclic Loading Experiment |
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| QU Kai,ZHANG Xu-dong,LI Gao-chun. Effect of Fixed Stress and Tensile Rate on Composite Solid Propellant Cyclic Loading Experiment[J]. Chinese Journal of Explosives & Propellants, 2011, 34(3): 79-82 |
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| Authors: | QU Kai ZHANG Xu-dong LI Gao-chun |
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| Affiliation: | QU Kai,ZHANG Xu-dong,LI Gao-chun(Department of Aircraft Engineering,Naval Aeronautical andAstronautical University,Yantai Shandong 264001,China) |
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| Abstract: | In order to obtain fatigue properties of propellant,composite solid propellant cyclic loading experiment was carried out by material testing machine.The influence of the fixed stress and tensile rate on fatigue properties of propellant was mainly studied.Results show that the bigger the fixed stress,the cyclic number was fewer with the same tensile rate.The stress and natural logarithm of the cyclic number accorded with exponent equation.With the same stress,the faster the tensile rate,the easier for the pr... |
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| Keywords: | material science composite solid propellant fixed stress tensile rate cyclic loading stress-strain |
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