压力容器Issue(8)：34-41,8.DOI:10.3969/j.issn.1001-4837.2014.08.006
RPV PTS分析中二次应力塑性修正因子ρ的精确值
Accurate Value of Secondary Stress Plasticity Correction Parameter ρfor a RPV under the Transitent of PTS Condition
摘要
Abstract
Based on the ChapterⅢ.3.3.1 of the revision 4 of R6 code,an accurate method for calculat-ing the value of the secondary stress plasticity correction parameter ρwas induced.This paper presented the finite element accuracy solutions of theρfactors and the conservation of parameterρin the ChapterⅠof the R6 code(basic procedures)under the pressurized thermal shock(PTS)condition of a reactor pres-sure vessel(RPV),and the conservation of the safety margin(SM)of the structure was also evaluated.It has been found that the conservation of its correction parameters ρis above 20%,and the conservation of the fracture toughness SM is more than 4%.The conservation of the fracture toughness SM increases with increasing the temperature of the crack tip.As a result,it′s necessary to get more accurate plasticity cor-rection ρfor the accurate assessment of the failure assessment diagram(FAD)method.关键词
反应堆压力容器/失效评定图/承压热冲击/塑性修正因子ρ/R6规范Key words
reactor pressure vessel(RPV)/failure assessment diagram(FAD)/pressurized thermal shock (PTS)/plasticity correction parameterρ/R6 code分类
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陈明亚,吕峰,王荣山,黄平,刘向兵..RPV PTS分析中二次应力塑性修正因子ρ的精确值[J].压力容器,2014,(8):34-41,8.基金项目
国家863课题（2012AA050901）；国家自然科学基金项目 （）
