含缺陷自增强超高压容器疲劳评价研究

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英文篇名：Fatigue Assessment of Autofrettagedultrahigh Pressure Vessel Containing Defects 作者：靖维飞 ; 韩志远 ; 邢健 ; 邵珊珊 ; 谢国山 英文作者：Jing Weifei;Han Zhiyuan;Xing Jian;Shao Shanshan;Xie Guoshan;SinopecBeijingYanshan Company;China Special Equipment Inspection and Research Institute; 关键词：自增强超高压容器 ; 疲劳 ; 寿命评价 英文关键词：Autofrettaged ultrahigh pressure vessels;;Fatigue;;Life assessment 中文刊名：ZGLA 英文刊名：China Special Equipment Safety 机构：中国石化北京燕山分公司;中国特种设备检测研究院; 出版日期：2018-12-30 出版单位：中国特种设备安全 年：2018 期：v.34;No.288 基金：国家重点研发计划课题2016YFC0801905 语种：中文; 页：ZGLA201812003 页数：5 CN：12 ISSN：11-5345/TK 分类号：12-15+22

摘要

自增强超高压容器越来越广泛的被应用于化工行业,这些超高压容器一般处于高幅度的循环内压作用下,因此经常承受疲劳损伤,特别是对于结构不连续位置。本文对含有内外表面体积型沟槽缺陷的超高压容器进行了疲劳分析以评价疲劳寿命。采用弹塑性有限元计算了自增强超高压容器的残余应力分布,并与解析计算方法和实测残余应力结果进行了比较。还通过有限元方法计算了缺陷处的交变应变幅,并采用Basquin-Manson方法对超高压容器的疲劳寿命进行了评价。结果显示,缺陷的存在显著降低了超高压容器疲劳寿命。
        The autofrettaged ultrahigh pressure vessels have been more and more widely used in chemical and petro-chemical industry. These ultrahigh pressure vessels are usuallysubjected to high amplitude cyclic internalpressure, thus may experience fatigue damage especially at the structuraldiscontinuity. This paper performed fatigue analysis to assessment the fatigue life of autofrettaged ultrahigh tube pressure vessels containing inner and outer surface gouge defects. The elastic-plastic finite element(FE) analysis was used to calculate the residual stress distribution for the autofrettaged ultrahigh pressure vessel, and compared with that calculated by the analytic method and actual residual stress measurements. The equivalent elastic and plastic strain amplitudes were also calculated at the crack tip with different crack depths by FE method. Based on the stress analysis, the fatigue life was evaluated by Basquin and Manson method. The results showed that the appearance of the defect significantly decreased the fatigue life of ultrahigh pressure vessel.

引文

[1]邵国华,魏兆灿.超高压容器[M].北京:化学工业出版社,2002.
    [2] ASME boiler and pressure vessel code, section VIII,division 3:alternative rules for construction of high pressure vessels ASME[S]. 2002.
    [3] GB/T 34019—2017,超高压容器[S].
    [4]R.Thumser, J.W. Bergmann, M. Vormwald. Residual stress field and fatigue analysis of autofrettaged parts[J].International Journal of Fatigue 79(2002)113-117
    [5]S.K. Koh. Fatigue analysis of autofrettaged pressure vessels with radial holes[J] International Journal of Fatigue 22(2000)717-726
    [6] S.K. Koh, E.G. Na. Fatigue crack growth life of thick—walled cylinders with anexternal radial crack[J].International Journal of Fatigue 21(1999)135-146
    [7]厚俊,陈新伟,朱磊,外壁带人工缺口的厚壁管内压疲劳试验[J].压力容器,1984,5:10-16
    [8]关家锟,柳曾典,潘家祯,王印培.高压聚乙烯装置超高压管失效分析[J].中国锅炉压力容器安全,1997, 6(13):22-25.
    [9] H.O. Fuchs, R.I. Stephens. Metal fatigue in engineering[M]. New York:Wiley, 1980.
    [10]马小明,马文婷,刘慧华.LDPE超高压管式反应器自增强弹塑性界面半径分析[J].石油化工设备,2009,38(3):57-59