有色金属防爆膜的爆破压力及安全寿命的计算
Evaluation of bursting pressure and safety life of non-ferrous metal rupture discs
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摘要: 本文运用损伤力学及可靠性方法,分析疲劳循环中防爆膜爆破压力的变化规律,给出安全寿命的计算方法及算图。通过疲劳断口的电镜扫描试验,证明防爆膜的疲劳破坏是由存在于金属内部的微裂纹和杂质所引起。Abstract: On the basis of the damage mechanics and probability, the variation of the bursting pressure of rupture discs in fatigue process was studied, the method and monograph for evaluating safety life of rupture discs were proposed. The photographs of the sweep electron microscope show that fatigue damage are caused mainly by microcracks and impurities of metal.