Crystal Plasticity Modeling of the Dynamic Behavior of Magnesium Alloy, WE43-T5, Plate

Bhattacharyya, Jishnu J.; Agnew, Sean R.; Wu, Peidong; Wittington, Wilburn; Kadiri, Haitham El

doi:10.1007/978-3-319-48185-2_31

Cited by 1 publication

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the case of in plane compression (RD and TD), the experimentally obtained rate sensitivities are similar to that of in-plane tension (Bhattacharyya et al, 2015). At first, it may seem contradictory, since twinning is treated as rate independent in the model.…”

Section: Rate Sensitivity Of Individual Deformation Modesmentioning

confidence: 56%

“…The modeling strategy is similar to that used in earlier studies (Jain and Agnew, 2007;Bhattacharyya et al, 2015). The initial texture of the material is such that, during in-plane (RD and TD) tension, most of the strain is accommodated by the basal and prismatic slip modes.…”

Section: Modeling the Quasistatic Responsementioning

confidence: 99%

“…The experimentally observed strain rate sensitivities, m, were published previously (Bhattacharyya et al, 2015). There are some inherent problems with using this approach for the tensile loading condition, because the high and low strain rate data were obtained from two different plates, which had distinct textures (Fig.…”

Section: Rate Sensitivity Of Individual Deformation Modesmentioning

confidence: 99%

See 2 more Smart Citations

Demonstration of alloying, thermal activation, and latent hardening effects on quasi-static and dynamic polycrystal plasticity of Mg alloy, WE43-T5, plate

Bhattacharyya

Wang

et al. 2016

International Journal of Plasticity

112

View full text Add to dashboard Cite

The mechanical response of rare earth containing Mg alloy, WE43, plates is found to be more isotropic, as compared to conventional alloys like AZ31, despite a moderately strong texture. In order to understand the grain-level deformation mechanisms which are responsible, the elastoplastic self-consistent (EPSC) polycrystal plasticity code, including the recently developed twinning-detwinning (TDT) model, is used to describe the homogeneous plastic flow of WE43-T5, plate at quasistatic and dynamic strain rates. Latent hardening of the slip modes is based on a recent discrete dislocation dynamics study in order to reduce the number of empirical fitting parameters without sacrificing model fidelity. The approach accounts for the presence of the initial texture and its evolution during deformation. The observed flow stress, strain, and strain hardening anisotropies and asymmetries are well-described. A single set of parameters was used to fit the entire set of results, at a given strain rate, thus enabling determination of strain rate sensitivities of individual deformation modes. Basal slip and extension twinning are rateinsensitive, within the strain rate regime examined, whereas the prismatic and slip exhibit strain rate sensitivities of 0.008 and 0.005, respectively. Various strengthening mechanisms such as precipitation, grain refinement and solid solution hardening effects on each individual deformation modes are assessed. The softer modes, basal slip and extension twinning, are greatly strengthened in this alloy, as compared to the harder modes such as prismatic and slip, which renders this material more isotropic, even at the grain-level, as compared to conventional Mg alloys.

show abstract

Section: Rate Sensitivity Of Individual Deformation Modesmentioning

confidence: 56%

Section: Modeling the Quasistatic Responsementioning

confidence: 99%

Section: Rate Sensitivity Of Individual Deformation Modesmentioning

confidence: 99%

See 1 more Smart Citation