Reproducibility of pop-ins in laboratory testing of welded joints
The pop-in phenomenon, quite common in fracture mechanics tests of welded joints, corresponds to a brittle crack initiation grown from a local brittle zone (LBZ) that is arrested in reaching the higher toughness material that surrounds this LBZ. A methodology to obtain a high percentage of pop-in oc...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2000-10-01
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| Series: | Materials Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392000000400008 |
| _version_ | 1819115072206667776 |
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| author | C. Berejnoi J.E. Perez Ipiña C.L. Llorente |
| author_facet | C. Berejnoi J.E. Perez Ipiña C.L. Llorente |
| author_sort | C. Berejnoi |
| collection | DOAJ |
| description | The pop-in phenomenon, quite common in fracture mechanics tests of welded joints, corresponds to a brittle crack initiation grown from a local brittle zone (LBZ) that is arrested in reaching the higher toughness material that surrounds this LBZ. A methodology to obtain a high percentage of pop-in occurrence in laboratory testing is necessary to study the pop-in significance. Such a method is introduced in this work and includes the consumable combination and welding procedures for the SMAW welding process to generate artificial LBZ. In order to find out the influence of the loading state upon the pop-in phenomenon, laboratory CTOD tests were performed using two specimen configurations: some single edge-notched specimens were loaded on a three-point bending (SE(B)) fixture while others were tested in tensile load (SE(T)). A higher frequency of pop-in occurrence was observed in the SE(B) geometry. |
| first_indexed | 2024-12-22T04:55:22Z |
| format | Article |
| id | doaj.art-b41098f15060437c820cc3cc23920d7a |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-22T04:55:22Z |
| publishDate | 2000-10-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-b41098f15060437c820cc3cc23920d7a2022-12-21T18:38:24ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392000-10-013413914610.1590/S1516-14392000000400008Reproducibility of pop-ins in laboratory testing of welded jointsC. BerejnoiJ.E. Perez IpiñaC.L. LlorenteThe pop-in phenomenon, quite common in fracture mechanics tests of welded joints, corresponds to a brittle crack initiation grown from a local brittle zone (LBZ) that is arrested in reaching the higher toughness material that surrounds this LBZ. A methodology to obtain a high percentage of pop-in occurrence in laboratory testing is necessary to study the pop-in significance. Such a method is introduced in this work and includes the consumable combination and welding procedures for the SMAW welding process to generate artificial LBZ. In order to find out the influence of the loading state upon the pop-in phenomenon, laboratory CTOD tests were performed using two specimen configurations: some single edge-notched specimens were loaded on a three-point bending (SE(B)) fixture while others were tested in tensile load (SE(T)). A higher frequency of pop-in occurrence was observed in the SE(B) geometry.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392000000400008pop-inlocal brittle zonefracture toughness |
| spellingShingle | C. Berejnoi J.E. Perez Ipiña C.L. Llorente Reproducibility of pop-ins in laboratory testing of welded joints Materials Research pop-in local brittle zone fracture toughness |
| title | Reproducibility of pop-ins in laboratory testing of welded joints |
| title_full | Reproducibility of pop-ins in laboratory testing of welded joints |
| title_fullStr | Reproducibility of pop-ins in laboratory testing of welded joints |
| title_full_unstemmed | Reproducibility of pop-ins in laboratory testing of welded joints |
| title_short | Reproducibility of pop-ins in laboratory testing of welded joints |
| title_sort | reproducibility of pop ins in laboratory testing of welded joints |
| topic | pop-in local brittle zone fracture toughness |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392000000400008 |
| work_keys_str_mv | AT cberejnoi reproducibilityofpopinsinlaboratorytestingofweldedjoints AT jeperezipina reproducibilityofpopinsinlaboratorytestingofweldedjoints AT clllorente reproducibilityofpopinsinlaboratorytestingofweldedjoints |