Coupled anisotropic plasticity-ductile damage: Modeling, experimental verification, and application to sheet metal forming simulation
| Autor: | Mondher Wali, Olfa Ghorbel, Sana Koubaa, Jamel Mars, Fakhreddine Dammak |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Sheet metal forming simulation business.industry Mechanical Engineering Subroutine Isotropy 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology Condensed Matter Physics 020303 mechanical engineering & transports Quadratic equation 0203 mechanical engineering Mechanics of Materials visual_art visual_art.visual_art_medium Hardening (metallurgy) General Materials Science Deep drawing 0210 nano-technology Sheet metal Anisotropy business Civil and Structural Engineering |
| Zdroj: | International Journal of Mechanical Sciences. 150:548-560 |
| ISSN: | 0020-7403 |
| DOI: | 10.1016/j.ijmecsci.2018.10.044 |
| Popis: | In this paper, an improved anisotropic elasto-plastic model strongly coupled with isotropic ductile damage is investigated. The quadratic Hill’48 yield criterion and non-linear isotropic/kinematic hardening are considered in the associated flow rule model. The numerical formulation of the proposed model is implemented in ABAQUS finite element code via the user material subroutines UMAT and VUMAT. The mechanical behavior of DD13 sheet metal is investigated. Its significant deep drawing capability makes this material attractive, particularly for the automotive industry. An experimental database of the DD13 mechanical properties is achieved through a serie of uniaxial tensile tests, so that the anisotropic coefficients, hardening and damage parameters are obtained. For validation purpose, the numerical results are compared to Erichsen cupping test. The combined experimental/numerical study proves the ability of the proposed model in the description of the DD13 damaged-anisotropic behavior with good accuracy. |
| Databáze: | OpenAIRE |
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