一种评价导管架焊接接头韧性的方法  

A Method for Evaluating the Toughness of Welding Joints in Jacket

作　　者：苗张木[1] 蒋军 王志坚 陈冰泉[1] 李永信[1] 陶德馨[1] 彭永春[3] 

机构地区：[1]武汉理工大学,武汉430063 [2]赤湾胜宝旺工程公司,深圳518068 [3]中国船级社,北京100006

出　　处：《中国海洋平台》2003年第5期34-37,41,共5页China offshore Platform

摘　　要：按照英国BS7448标准,介绍了裂纹尖端张开位移(简称CTOD)试验方法,并用这种试验方法,评价了番禺项目导管架厚板焊接接头的韧性。结果表明:CTOD试验评价焊接接头韧性,效果良好;CTOD试验可作为焊接工艺认可试验;被评价的两项焊接工艺用于导管架建造,焊后允许不进行热处理,缩短了建造工期,降低了成本。According to the British standard BS7448, the testing method for determination of crack Tip Opening Displacement(CTOD)is introduced.The Toughness of welding joints of thick plates in jacket of Panyu Project has been evaluated by using this method.The results show that it is rather good to evaluate the toughness of welding joints with the CTOD test method and this method can be used as the acceptable test of welding craft.After evaluating by using this imethod in jacket fabrication,the jackets need no more heat treatment.So the working efficiency can be increased and productive cost can be reduced by a great amount.

关 键 词：评价 导管架 焊接接头 韧性 裂纹尖端张开位移 导管架 固定式海洋平台 

分 类 号：P752[天文地球—海洋科学]