| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1639022 | Transactions of Nonferrous Metals Society of China | 2011 | 7 Pages |
Abstract
A numerical analysis of mechanical behavior of aluminum alloy sheet under cyclic plastic deformation was investigated. Forming limit at fracture was derived from Cockcroft-Latham ductile damage criterion. The strain path of bending center of incremental roller hemming could be accepted as a kind of plane strain bending deformation process. Incremental rope roller hemming could be used to alleviate ductile fracture behavior by changing the stress state of the hemming-effected area. SEM observation on the fracture surface indicates that cyclic plastic deformation affects ductile fracture mechanism.
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Physical Sciences and Engineering
Materials Science
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