Ultrasonic imaging composite testing of butt weld in nuclear power VVP based on CIVA simulation

In this paper, the simulation process of PAUT and TOFD for butt weld of VVP pipeline system in a nuclear power plant is analyzed and studied, and the composite detection process is verified on the simulation test block. The test results show that the composite process has good detection effect, which provides a new idea for VVP pipeline butt weld inspection.