压力容器2024，Vol.41Issue(11)：12-18,7.DOI:10.3969/j.issn.1001-4837.2024.11.002
国产超高压爆破片静载及疲劳寿命试验研究
Experimental study on static load and fatigue life of domestic ultra-high pressure rupture discs
摘要
Abstract
The long-term operation reliability and replacement intervals of ultra-high ressure rupture discs are critical issues that are faced by many companies.Static and fatigue life tests are conducted on domestically developed ultra-high pressure rupture discs.The results show that both static and fatigue life of rupture discs decrease as the operating ratio increases.At an operating ratio of 0.98,the static life time is reduced to 65 minutes,and the number of fatigue cycles is limited to 62.Through microscopic analysis of the fracture surfaces,ductile fracture characteristics are revealed in static tests at high operating ratios,while extensive fatigue cracks are observed in fatigue tests.Considering factors that contribute to life reduction,the test data are fitted,and predictive curves for static and fatigue life suitable for engineering applications are proposed.It is discovered that changes in the operating ratio(above 0.86)have a minor impact on life;however,even slight fluctuations at lower operating ratios significantly affect the life.The evaluation method of dynamic life of ultra-high pressure rupture discs can provide reference for the analysis of replacement cycle and life of rupture discs.关键词
超高压爆破片/静载寿命/疲劳寿命/寿命折损Key words
ultra-high pressure rupture discs/static load life/fatigue life/life degradation分类
机械制造引用本文复制引用
刘镇溪,周少坤,徐辉,王海涛,喻健良,闫兴清,李岳,唐文华..国产超高压爆破片静载及疲劳寿命试验研究[J].压力容器,2024,41(11):12-18,7.基金项目
国家市场监管总局技术创新中心基金项目(2021XKTD008) （2021XKTD008）
