Mechanism of crack branching in the fatigue crack growth path of 2324-T39 Aluminium alloy
The crack growth behavior in 2324-T39 aluminium alloy was experimentally investigated. Two types of crack branching were observed. The mechanism of an uncommon crack branching which results from the link up of secondary crack with the main crack was focused on. The crack paths were observed with opt...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2015-12-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/1630 |
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| author | Lu Songsong Bao Rui Zhang Ting Fei Binjun |
| author_facet | Lu Songsong Bao Rui Zhang Ting Fei Binjun |
| author_sort | Lu Songsong |
| collection | DOAJ |
| description | The crack growth behavior in 2324-T39 aluminium alloy was experimentally investigated. Two types of crack branching were observed. The mechanism of an uncommon crack branching which results from the link up of secondary crack with the main crack was focused on. The crack paths were observed with optical microscope and in-situ SEM. Finite element crack tip simulation was performed to investigate the relationship between plastic zone size and the location of the secondary crack. Tests and analysis results indicate that the secondary crack initiates near the plastic zone boundary and from the subsurface. The mechanism of this kind crack branching relates to the interaction of grain size and plastic zone size. |
| format | Article |
| id | doaj-art-565d337dae8a4e099dfa11296968d58d |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2015-12-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-565d337dae8a4e099dfa11296968d58d2025-01-03T00:40:23ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932015-12-011035Mechanism of crack branching in the fatigue crack growth path of 2324-T39 Aluminium alloyLu SongsongBao RuiZhang TingFei BinjunThe crack growth behavior in 2324-T39 aluminium alloy was experimentally investigated. Two types of crack branching were observed. The mechanism of an uncommon crack branching which results from the link up of secondary crack with the main crack was focused on. The crack paths were observed with optical microscope and in-situ SEM. Finite element crack tip simulation was performed to investigate the relationship between plastic zone size and the location of the secondary crack. Tests and analysis results indicate that the secondary crack initiates near the plastic zone boundary and from the subsurface. The mechanism of this kind crack branching relates to the interaction of grain size and plastic zone size.https://www.fracturae.com/index.php/fis/article/view/1630Fatigue crack growthCrack path branchingMechanism analysis2324-T39 aluminium alloy |
| spellingShingle | Lu Songsong Bao Rui Zhang Ting Fei Binjun Mechanism of crack branching in the fatigue crack growth path of 2324-T39 Aluminium alloy Fracture and Structural Integrity Fatigue crack growth Crack path branching Mechanism analysis 2324-T39 aluminium alloy |
| title | Mechanism of crack branching in the fatigue crack growth path of 2324-T39 Aluminium alloy |
| title_full | Mechanism of crack branching in the fatigue crack growth path of 2324-T39 Aluminium alloy |
| title_fullStr | Mechanism of crack branching in the fatigue crack growth path of 2324-T39 Aluminium alloy |
| title_full_unstemmed | Mechanism of crack branching in the fatigue crack growth path of 2324-T39 Aluminium alloy |
| title_short | Mechanism of crack branching in the fatigue crack growth path of 2324-T39 Aluminium alloy |
| title_sort | mechanism of crack branching in the fatigue crack growth path of 2324 t39 aluminium alloy |
| topic | Fatigue crack growth Crack path branching Mechanism analysis 2324-T39 aluminium alloy |
| url | https://www.fracturae.com/index.php/fis/article/view/1630 |
| work_keys_str_mv | AT lusongsong mechanismofcrackbranchinginthefatiguecrackgrowthpathof2324t39aluminiumalloy AT baorui mechanismofcrackbranchinginthefatiguecrackgrowthpathof2324t39aluminiumalloy AT zhangting mechanismofcrackbranchinginthefatiguecrackgrowthpathof2324t39aluminiumalloy AT feibinjun mechanismofcrackbranchinginthefatiguecrackgrowthpathof2324t39aluminiumalloy |