|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation
||Applications of an Efficient Elasto-visco-plastic Self-consistent Polycrystal Model Interfaced with a Finite Element Framework
||Youngung Jeong, Carlos N. Tome, Bohye Jeon, Mooyeong Joo
|On-Site Speaker (Planned)
||Carlos N. Tome
We present a computationally efficient elasto-visco-plastic self-consistent polycrystal model (EVPSC), based on homogeneous equivalent medium method. The model inherits the predictive capabilities of the well-known visco-plastic self-consistent polycrystal model VPSC and has been recently interfaced with a commercial finite element software (Abaqus) as user material subroutine (EVPSC-FE). The performance and capabilities of EVPSC-FE are demonstrated by comparing with the stand-alone version. For doing so, we applied the model to an FCC 316L stainless steel, a BCC low-carbon steel, and HCP zirconium, respectively. In order to quantify the computational efficiency, the uniaxial tension simulations were repeatedly conducted for simple solid structures consisting of 8, 27, 64, and 512 elements, allowing the use of multiple CPU core units. A four-point beam bending simulation followed by holding and unloading was conducted to demonstrate the unique modelling capabilities of the model. The hereditary effect on spring-forward and backward deformation is discussed.