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李建,周昌玉,彭剑,常乐,贺小华.钛制压力容器的室温蠕变极限载荷研究[J].稀有金属材料与工程(英文),2017,46(10):3011~3016.[Li Jian,Zhou Changyu,Peng Jian,Chang Le,He Xiaohua.Creep limit load analyses for titanium pressure vessels at ambient temperature[J].Rare Metal Materials and Engineering,2017,46(10):3011~3016.]
Creep limit load analyses for titanium pressure vessels at ambient temperature
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Received:July 18, 2015  Revised:August 28, 2015
Key words: commercial pure titanium  ambient temperature creep  pressure vessels  creep limit load
Foundation item:国家自然科学基金资助(项目号51475223, 51075199);江苏省研究生科研创新计划(KYLX15_0801)
Author NameAffiliationE-mail
Li Jian Nanjing Tech University lijian83675215@163.com 
Zhou Changyu Nanjing Tech University changyu_zhou@163.com 
Peng Jian Nanjing Tech University  
Chang Le Nanjing Tech University  
He Xiaohua Nanjing Tech University  
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      Creep limit loads for TA2 made pressure vessels have been carried out by finite element (FE) method based on the isochronous stress-strain curves of commercial pure titanium at ambient temperature. Take the cylindrical pressure vessels as example, results mainly shows that creep limit loads will firstly decrease quickly and then decrease slowly with the time increasing. The influence effect of the ratio K on creep limit load has been conducted in detail, which provides estimating solutions for ambient temperature creep limit load prediction. These solutions can reflect the effect of the time degradation of limit load, and also the allowable strain and K on the limit load. This research will provide some valuable references to the safety assessment of titanium made pressure equipment.