基于超声导波的螺栓轴向应力测量方法
杨宇1(
),杨昌群2,赵勃3,4()
),杨昌群2,赵勃3,4()
Measurement method of bolt axial stress based on ultrasonic guided waves
Yu YANG1(),Changqun YANG2,Bo ZHAO3,4()
),Changqun YANG2,Bo ZHAO3,4()
图18. M36×385螺栓轴向应力与超声导波回波信号声时差的拟合曲线
Fig.18. Fitting curve between axial stress of M36×385 bolt and acoustic time difference of ultrasonic guided wave echo signal
