CAJ | 학술논문

采用红外热像仪对PBX块状试样在单轴压缩载荷下的疲劳过程进行了试验研究.结果表明,PBX药柱在压缩疲劳过程中会出现明显的温度升高现象,红外热像技术可实时监测药柱表面温度场的变化;PBX的疲劳温升与疲劳加载的频率、应力及试样状态有很大关联性,最大温升值随着疲劳加载的频率和加载应力幅值的增大而(提高.)
채용홍외열상의대PBX괴상시양재단축압축재하하적피로과정진행료시험연구.결과표명,PBX약주재압축피로과정중회출현명현적온도승고현상,홍외열상기술가실시감측약주표면온도장적변화;PBX적피로온승여피로가재적빈솔、응력급시양상태유흔대관련성,최대온승치수착피로가재적빈솔화가재응력폭치적증대이(제고.)
The infrared thermal images study for the compressive failure process of PBX was carried out. The results show that temperature rises obviously during the fatigue experiment, and the infrared thermal image can observe the changes in external temperature field of PBX. The fatigue temperature rise of PBX sample was influenced by frequencies, stress amplitudes and sample forms. The maximum temperature rise in fatigue was elevated with adding of load frequencies and stress range.