The inadepuats braking conditions are the main cause to produce heat-effected metal layer and fatigue crackings.
制动工况不当是产生热影响层和疲劳裂纹的主要原因。
2
Crackings occurred three times in elbow bend since one domestic long distance gas transportation pipeline came to used in 1993.
国内某长距离煤气输送管道于1993年投入运行以来,先后三次在管道弯头部位出现裂纹,导致煤气泄漏。
3
Based on the cracking mechanism and FEM, the crackings on the grade crushed stone pavement and the semirigid base asphalt pavement are compared and analyzed.