On the elasto-viscoplastic behavior of the Ti5553 alloy
dc.contributor.author
hal.structure.identifier | BEN BETTAIEB, Mohamed
|
dc.contributor.author
hal.structure.identifier | VAN HOOF, Thibaut
|
dc.contributor.author
hal.structure.identifier | PARDOEN, Thomas
|
dc.contributor.author
hal.structure.identifier | DUFOUR, Philippe
|
dc.contributor.author
hal.structure.identifier | LENAIN, Astrid
|
dc.contributor.author
hal.structure.identifier | JACQUES, Pascal J.
|
dc.contributor.author
hal.structure.identifier | HABRAKEN, Anne-Marie
|
dc.date.accessioned | 2016 |
dc.date.available | 2016 |
dc.date.issued | 2014 |
dc.date.submitted | 2016 |
dc.identifier.issn | 0921-5093 |
dc.identifier.uri | http://hdl.handle.net/10985/11196 |
dc.description.abstract | The elastoviscoplastic behavior of the Ti5553 alloy is characterized and compared to the classical Ti–6Al–4V alloy. The true stress–strain curves are determined based on tensile tests performed under different strain rates at room temperature and at 1501C, from which the elastic constants and the parameters of a Norton–Hoff viscoplastic model are identified. The strength of the Ti5553 alloy is 20–40% higher than the strength of the Ti–6Al–4V alloy. The Ti5553 alloy constitutes thus a promising candidate for advanced structural applications. In view of modeling structural applications of forming operations, the elastic and plastic initial anisotropy of the two alloys is investigated by combining compression on cylinders with elliptical sections, uniaxial tensile tests in different material directions, plane strain and shear tests. The initial anisotropy of the different alloys is very weak which justifies the modeling of the mechanical behavior with an isotropic yield surface. The identified elastoviscoplastic model is validated by comparing experimental results with FE predictions both on cylindrical notched specimens subjected to tensile tests and onflat specimens subjected to plane strain conditions. |
dc.language.iso | en |
dc.publisher | Elsevier |
dc.rights | Post-print |
dc.subject | Ti5553 alloy |
dc.subject | Ti–6Al–4V alloy |
dc.subject | Norton–Hoff model |
dc.subject | Viscoplasticity |
dc.subject | Anisotropy |
dc.subject | FE simulations |
dc.title | On the elasto-viscoplastic behavior of the Ti5553 alloy |
dc.identifier.doi | 10.1016/j.msea.2014.08.055 |
dc.typdoc | Article dans une revue avec comité de lecture |
dc.localisation | Centre de Metz |
dc.subject.hal | Sciences de l'ingénieur: Matériaux |
dc.subject.hal | Sciences de l'ingénieur: Mécanique |
ensam.audience | Internationale |
ensam.page | 97-109 |
ensam.journal | Materials Science and Engineering: A |
ensam.volume | 617 |
ensam.peerReviewing | Oui |
hal.identifier | hal-01369706 |
hal.version | 1 |
hal.status | accept |