Matches in SemOpenAlex for { <https://semopenalex.org/work/W104677391> ?p ?o ?g. }
Showing items 1 to 61 of
61
with 100 items per page.
- W104677391 abstract "After the central calorimeter was installed on the center beam a cracked weld was found on the bridge. The weld was a partial penetration between the top rail plate and the T-1 steel nose section. The crack is fully across the width of the rail plate and the rail is depressed in a concave shape. That is, the depression is deeper in the center and feathers out to zero at the end of the rail. Upon close inspection it was obvious that there was no penetration of weld metal into the T-1 material. The assumption is that the T-1 was not properly pre-heated before welding. The reason for the concave depression comes from the fact that the rail plate rests on the flanges of the 'S' beams and that during welding the plate pulled off the beams. This weld failure can not propagate to any other welds and therefore, will not start a chain of failures. Clearly the failure of this weld did not hinder the installation of the central calorimeters. This weld failure occurred on both sides of the bridge. This failure did, however, alert us to check the critical weld on the bridge, S-beam webs to T-1 nose section, to assure us we had a sound weldment. (Note: it must be used again for both EC's). We contacted M.Q.S. Inspection Inc. (Lab contractor for N.D.T.). A technician from M.Q.S. came to DAB and performed an ultrasonic examination of the welds in question. The exam showed that we don't have a full penetration weld of the S Beam web, but that it is between 67-83%. A calculation was performed based on 67% penetration and the CC & EC loads. In both cases the weld stresses were well within acceptable limits (see calculations attached). Based on this result, it is not deemed necessary to modify the current weldment." @default.
- W104677391 created "2016-06-24" @default.
- W104677391 creator A5063283705 @default.
- W104677391 date "1990-10-29" @default.
- W104677391 modified "2023-09-23" @default.
- W104677391 title "D0 Silicon Upgrade: Calorimeter Installation Bridge Non-Destructive Test Result" @default.
- W104677391 doi "https://doi.org/10.2172/1033278" @default.
- W104677391 hasPublicationYear "1990" @default.
- W104677391 type Work @default.
- W104677391 sameAs 104677391 @default.
- W104677391 citedByCount "0" @default.
- W104677391 crossrefType "report" @default.
- W104677391 hasAuthorship W104677391A5063283705 @default.
- W104677391 hasBestOaLocation W1046773913 @default.
- W104677391 hasConcept C110209231 @default.
- W104677391 hasConcept C121332964 @default.
- W104677391 hasConcept C127413603 @default.
- W104677391 hasConcept C139730468 @default.
- W104677391 hasConcept C159985019 @default.
- W104677391 hasConcept C168834538 @default.
- W104677391 hasConcept C192562407 @default.
- W104677391 hasConcept C19474535 @default.
- W104677391 hasConcept C24890656 @default.
- W104677391 hasConcept C2780026712 @default.
- W104677391 hasConcept C66938386 @default.
- W104677391 hasConcept C78519656 @default.
- W104677391 hasConcept C81288441 @default.
- W104677391 hasConcept C86171150 @default.
- W104677391 hasConceptScore W104677391C110209231 @default.
- W104677391 hasConceptScore W104677391C121332964 @default.
- W104677391 hasConceptScore W104677391C127413603 @default.
- W104677391 hasConceptScore W104677391C139730468 @default.
- W104677391 hasConceptScore W104677391C159985019 @default.
- W104677391 hasConceptScore W104677391C168834538 @default.
- W104677391 hasConceptScore W104677391C192562407 @default.
- W104677391 hasConceptScore W104677391C19474535 @default.
- W104677391 hasConceptScore W104677391C24890656 @default.
- W104677391 hasConceptScore W104677391C2780026712 @default.
- W104677391 hasConceptScore W104677391C66938386 @default.
- W104677391 hasConceptScore W104677391C78519656 @default.
- W104677391 hasConceptScore W104677391C81288441 @default.
- W104677391 hasConceptScore W104677391C86171150 @default.
- W104677391 hasLocation W1046773911 @default.
- W104677391 hasLocation W1046773912 @default.
- W104677391 hasLocation W1046773913 @default.
- W104677391 hasOpenAccess W104677391 @default.
- W104677391 hasPrimaryLocation W1046773911 @default.
- W104677391 hasRelatedWork W104677391 @default.
- W104677391 hasRelatedWork W1973076294 @default.
- W104677391 hasRelatedWork W2117664440 @default.
- W104677391 hasRelatedWork W2361883545 @default.
- W104677391 hasRelatedWork W2486248296 @default.
- W104677391 hasRelatedWork W3110891560 @default.
- W104677391 hasRelatedWork W4226146450 @default.
- W104677391 hasRelatedWork W4315480682 @default.
- W104677391 hasRelatedWork W2176213400 @default.
- W104677391 hasRelatedWork W984643704 @default.
- W104677391 isParatext "false" @default.
- W104677391 isRetracted "false" @default.
- W104677391 magId "104677391" @default.
- W104677391 workType "report" @default.