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具有中心穿透裂纹缺陷的矩形板极限拉伸强度分析
引用本文:王芳,黄小平,崔维成.具有中心穿透裂纹缺陷的矩形板极限拉伸强度分析[J].中国造船,2006,47(1):12-18.
作者姓名:王芳  黄小平  崔维成
作者单位:1. 上海交通大学船舶海洋与建筑工程学院,上海,200030
2. 中国船舶科学研究中心,江苏,无锡,214082
摘    要:本文利用弹塑性有限元分析结果对现有的裂纹板的拉伸极限强度简化公式进行了修正,得到了与实验结果比较吻合的修正公式,并且以受单向拉伸、具有中心穿透裂纹的正方形板为例,借助弹塑性断裂力学的理论推导了断裂控制基础上该材料的极限拉伸强度计算公式,从而从理论上解释了修正公式的合理性。

关 键 词:矩形板  中心穿透裂纹  极限拉伸强度  简化计算方法  弹塑性有限元分析
文章编号:1000-4882(2006)01-0012-07
收稿时间:06 14 2004 12:00AM
修稿时间:07 15 2005 12:00AM

Ultimate Tensile Strength Analysis of Rectangular Plate with Center Through-thickness Crack
WANG Fang,HUANG Xiao-ping,CUI Wei-cheng.Ultimate Tensile Strength Analysis of Rectangular Plate with Center Through-thickness Crack[J].Shipbuilding of China,2006,47(1):12-18.
Authors:WANG Fang  HUANG Xiao-ping  CUI Wei-cheng
Institution:1. School of Naval Architecture, Ocean and Civil Engineering, anghai Jiaotong University, Shanghai 200030, China ;2.China Ship Scientific Research Center, Wuxi 214082, China
Abstract:Up to now there still exist many problems in the ultimate tensile strength analysis of rectangular plates with cracks. Paik put forward a simplified model to predict the ultimate tensile loads of rectangular plates. The model has some degree of deviation compared with test results. A relatively precise but time-consuming method is the simplified FE analysis model by Hu. This paper aims at obtaining a corrected formula on the basis of FE analysis, which has a better agreement with test results. And the correlation between strength dominant faulure mode and fracture dominant failure mode has also been illustrated.
Keywords:rectangular plate  cener through crack  ultimate tensile strength  simplified analytical method  elastic-plastic finite element analysis
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