基于损伤理论，将用于评价体积型缺陷的APIRP 579公式进行了改进，建立了点腐蚀损伤管道的剩余强度评价公式。
Based on damage theory, residual strength assessment formula has been developed by modifying API RP 579 formula for volumetric flaw evaluation.
经过对32个实际焊接缺陷超声回波信号的分类识别，平面型缺陷的正确分类率为86%，体积型缺陷的正确分类率为78%；
The investigation of 32 natural weld defects show that 86% of the plane defects and 78% of the volume defects can be correctly classified.
而线缺陷型包裹体体积变化较大；
The inclusions trapped in line defect usually have different volumes.
点缺陷型包裹体体积一般较小，不方便分析；
Inclusions trapped in point defect mode are commonly in small size and not easy to be analyzed.
点缺陷型包裹体体积一般较小，不方便分析；
Inclusions trapped in point defect mode are commonly in small size and not easy to be analyzed.
应用推荐