文献类型：专利

英文题名：Advanced method for estimating defects of safety-end weld zone ofpressure vessel adapter of AP1000 nuclear reactor, involves determining defect is safe if coordinates fall in region

作者：LIU Z;TU S;XUAN F;WANG G

机构：[1]UNIV EAST CHINA SCI&TECHNOLOGY

申请号：CN102157211-B

公开日：2013-01-16

语种：英文

收录：DERWENT

摘要：NOVELTY - The method involves determining ultimate load bending moment according to relative depth and defect shape parameter of defected circumferential inner surface defect. Load ratio parameter is calculated, and coordinates are obtained through calculation on a failure assessment diagram. Determination is made whether the defect is safe if the coordinates fall in a region defined by a selected failure assessment curve, a vertical cut-off line and a coordinate axis. USE - Advanced method for estimating defects of a safety-end weld zone of a pressure vessel adapter of an AP1000 nuclear reactor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic illustration of an Advanced assessment method for defects of a safety-end weld zone of a pressure vessel adapter of an AP1000 nuclear reactor Defect length (2c)