焊接缺陷是工业管道系统中最常见的缺陷，而管道系统中由于焊接缺陷引起的事故屡屡发生，因此管道焊接缺陷评定对于管道的安全运行具有重要意义。
As the most common flaws in industrial piping systems, weld flaws frequently lead to accidents. Therefore, assessment of piping with weld flaws is of great significance.
以A NSYS为分析工具，对铁路架桥机导梁焊接缺陷进行有限元分析，为导梁进行结构安全评定提供依据。
The finite element analysis of the bridge-erecting machine 'beam under welding defect conditions is conducted with ANSYS program, which provides a basis for the structural safety assessment of beam.
实际算例表明，该方法用于含缺陷焊接管道可靠性安全评定简单、有效、准确。
The examples show that this method is simple, efficient and accurate for reliability safety assessment of the welded pipes with cracks.
文对卧式液化储气罐的焊接缺陷用断裂力学的分析方法，评定了其剩余使用寿命，对大修中储气罐焊接缺陷的安全评定提供了依据。
This paper evaluates the surplus service life of the liquefied natural gas tank by analysis of fracture mechanics, and offers the basis for the safety assessment of welding defects of the gas tank.
文对卧式液化储气罐的焊接缺陷用断裂力学的分析方法，评定了其剩余使用寿命，对大修中储气罐焊接缺陷的安全评定提供了依据。
This paper evaluates the surplus service life of the liquefied natural gas tank by analysis of fracture mechanics, and offers the basis for the safety assessment of welding defects of the gas tank.
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