Details
| Original language | English |
|---|---|
| Title of host publication | Advances in Materials, Mechanics and Manufacturing |
| Subtitle of host publication | Proceedings of the 2nd International Conference on Advanced Materials, Mechanics and Manufacturing, A3M 2018 |
| Editors | Fakher Chaari, Maher Barkallah, Bassem Zouari, Mohamed Haddar, Mohamed Taoufik Khabou, Anas Bouguecha, Mounir Kchaou |
| Publisher | Springer Nature |
| Pages | 142-149 |
| Number of pages | 8 |
| Edition | 1. |
| ISBN (electronic) | 978-3-030-24247-3 |
| ISBN (print) | 978-3-030-24246-6 |
| Publication status | Published - 18 Sept 2019 |
| Event | 2nd International Conference on Advanced Materials, Mechanics and Manufacturing, A3M 2018 - Hammamet, Tunisia Duration: 17 Dec 2018 → 19 Dec 2018 |
Publication series
| Name | Lecture Notes in Mechanical Engineering (LNME) |
|---|---|
| ISSN (Print) | 2195-4356 |
| ISSN (electronic) | 2195-4364 |
Abstract
Bar shearing is an important operation that supplies semi-finished billets to many metalworking processes such as stamping, extrusion and precision forging. Temperature rise and stress state variation during shearing have a great influence on material behavior and rupture mechanics. Consequently, accurate simulation of shearing requires a precise material modeling. The studied material is the AW-6082 aluminium alloy. This paper concerns principally the improving of shearing simulation by means of adequate modeling of ductile failure. The major contribution of this study is to present a relatively uncomplicated method to calibrate a decoupled damage model. To this purpose, the Hooputra ductile damage (HDD) model is selected since it reflects the influence of different stress states and temperature variations on the mechanical failure of the material. The triaxiality is considered as indicator of the stress state. The identification of the parameters of the damage model is based on a hybrid experimental-numerical analysis of three characterization tests, namely tension tests on smooth bars, tension tests on notched bars and shear tests. The obtained calibrated damage model is employed to simulate shearing. The fracture is simulated using the “element deletion” technique. Computed shearing results are eventually evaluated by comparing simulated force-displacement curve to experimental one.
Keywords
- Bar shearing, Decoupled damage model, FEM, Stress triaxiality
ASJC Scopus subject areas
- Engineering(all)
- Automotive Engineering
- Engineering(all)
- Aerospace Engineering
- Engineering(all)
- Mechanical Engineering
- Chemical Engineering(all)
- Fluid Flow and Transfer Processes
Cite this
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- BibTeX
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Advances in Materials, Mechanics and Manufacturing: Proceedings of the 2nd International Conference on Advanced Materials, Mechanics and Manufacturing, A3M 2018. ed. / Fakher Chaari; Maher Barkallah; Bassem Zouari; Mohamed Haddar; Mohamed Taoufik Khabou; Anas Bouguecha; Mounir Kchaou. 1. ed. Springer Nature, 2019. p. 142-149 (Lecture Notes in Mechanical Engineering (LNME)).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Evaluation of AW-6082 Aluminium Bar Shearing Simulation
AU - Moakhar, Sonda
AU - Hentati, Hamdi
AU - Barkallah, Maher
AU - Louati, Jamel
AU - Bonk, Christian
AU - Behrens, Bernd-Arno
AU - Haddar, Mohamed
PY - 2019/9/18
Y1 - 2019/9/18
N2 - Bar shearing is an important operation that supplies semi-finished billets to many metalworking processes such as stamping, extrusion and precision forging. Temperature rise and stress state variation during shearing have a great influence on material behavior and rupture mechanics. Consequently, accurate simulation of shearing requires a precise material modeling. The studied material is the AW-6082 aluminium alloy. This paper concerns principally the improving of shearing simulation by means of adequate modeling of ductile failure. The major contribution of this study is to present a relatively uncomplicated method to calibrate a decoupled damage model. To this purpose, the Hooputra ductile damage (HDD) model is selected since it reflects the influence of different stress states and temperature variations on the mechanical failure of the material. The triaxiality is considered as indicator of the stress state. The identification of the parameters of the damage model is based on a hybrid experimental-numerical analysis of three characterization tests, namely tension tests on smooth bars, tension tests on notched bars and shear tests. The obtained calibrated damage model is employed to simulate shearing. The fracture is simulated using the “element deletion” technique. Computed shearing results are eventually evaluated by comparing simulated force-displacement curve to experimental one.
AB - Bar shearing is an important operation that supplies semi-finished billets to many metalworking processes such as stamping, extrusion and precision forging. Temperature rise and stress state variation during shearing have a great influence on material behavior and rupture mechanics. Consequently, accurate simulation of shearing requires a precise material modeling. The studied material is the AW-6082 aluminium alloy. This paper concerns principally the improving of shearing simulation by means of adequate modeling of ductile failure. The major contribution of this study is to present a relatively uncomplicated method to calibrate a decoupled damage model. To this purpose, the Hooputra ductile damage (HDD) model is selected since it reflects the influence of different stress states and temperature variations on the mechanical failure of the material. The triaxiality is considered as indicator of the stress state. The identification of the parameters of the damage model is based on a hybrid experimental-numerical analysis of three characterization tests, namely tension tests on smooth bars, tension tests on notched bars and shear tests. The obtained calibrated damage model is employed to simulate shearing. The fracture is simulated using the “element deletion” technique. Computed shearing results are eventually evaluated by comparing simulated force-displacement curve to experimental one.
KW - Bar shearing
KW - Decoupled damage model
KW - FEM
KW - Stress triaxiality
UR - http://www.scopus.com/inward/record.url?scp=85083017481&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-24247-3_16
DO - 10.1007/978-3-030-24247-3_16
M3 - Conference contribution
AN - SCOPUS:85083017481
SN - 978-3-030-24246-6
T3 - Lecture Notes in Mechanical Engineering (LNME)
SP - 142
EP - 149
BT - Advances in Materials, Mechanics and Manufacturing
A2 - Chaari, Fakher
A2 - Barkallah, Maher
A2 - Zouari, Bassem
A2 - Haddar, Mohamed
A2 - Khabou, Mohamed Taoufik
A2 - Bouguecha, Anas
A2 - Kchaou, Mounir
PB - Springer Nature
T2 - 2nd International Conference on Advanced Materials, Mechanics and Manufacturing, A3M 2018
Y2 - 17 December 2018 through 19 December 2018
ER -