{"product_id":"l51786-development-of-optimized-nondestructive-inspection-methods-for-hot-tap-branch-connection-welds-1","title":"L51786 Development of Optimized Nondestructive Inspection Methods for Hot Tap Branch Connection Welds","description":"\u003cp\u003eIn the first two phases of this project, the accuracy and reliability of both conventional and more advanced nondestructive inspection techniques were evaluated by way of a round-robin program of blind inspections The results indicate that there is much variability in the accuracy and reliability of discontinuity detection and sizing depending on details of the NDT procedures adopted, which includes specification of equipment, techniques, calibration methods, and reporting requirements. In Phase III, optimized procedures for sleeve fillet welds and a limited number of branch groove welds were developed in the laboratory using fabricated assemblies containing Intentionally placed discontinuities. In response to a recommendation in Phase Ill, the current phase developed optimized procedures for a wide range of branch groove welds. The results of this phase indicate that the reliability and accuracy of nondestructive inspection techniques is not as high as obtained for sleeve fillet welds in the previous phase of the program In particular, the detection of sub-surface discontinuities by ultrasonic inspection is made more difficult by the added complexity of the branch weld geometries. As with sleeve fillet welds however, the probability of detecting weld toe cracks of a significant size can be quite good.\u003c\/p\u003e","brand":"PRCI Store","offers":[{"title":"Default Title","offer_id":44367612575822,"sku":"15720","price":195.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/prci-store.myshopify.com\/products\/l51786-development-of-optimized-nondestructive-inspection-methods-for-hot-tap-branch-connection-welds-1","provider":"PRCI Store","version":"1.0","type":"link"}