摘要
基于焊接制造过程的影响 ,焊缝的断裂韧度具有本质的变异性。通过对 X6 5管线钢管环焊缝断裂韧度测定试验 ,建立确定了断裂韧度统计分布模型 ,经多种数理统计检验 ,对断裂韧度指标 δC,即裂纹尖端张开位移 COD值的统计分布函数进行了统计拟合检验。统计结果表明 ,威布尔分布函数是描述断裂韧度指标
Affected by the process of welding,there is the statistic variance inherently for the fracture toughness of weld metal.The fracture toughness test of X65 pipeline welds was made.The statistical distribution model was set up to fit the distribution function of fracture toughness (C.By the several statistic tests,the results show that the optimum fitting distribution of (C is Weibull distribution.
出处
《焊管》
2003年第1期11-14,61,共4页
Welded Pipe and Tube
