000014330 001__ 14330
000014330 005__ 20161115100148.0
000014330 04107 $$aeng
000014330 046__ $$k2016-08-21
000014330 100__ $$aSong, Weidong
000014330 24500 $$aA crystal plasticity modeling for plane strain deformation of pure magnesium

000014330 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014330 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014330 506__ $$arestricted
000014330 520__ $$2eng$$aA rate-dependent elastic-viscoplastic constitutive model is proposed to simulate the plane strain deformation of pure magnesium crystal. The basal, prismatic and pyramidal slip systems in the parent grain, compressive twinning (CT) and tensile twinning (TT) are incorporated in the model. The constitutive descriptions of CT and TT are distinguished to better characterize their effects on the overall hardening of magnesium single crystals. The plane strain numerical schemes of seven different orientations for loading and fixed boundary are considered and their various mechanisms and characteristics of plastic deformation are discussed. These computational predictions are carefully compared with their corresponding macroscopic experimental observations and other numerical results. These results prove that it is necessary to distinguish different twinning systems and their associated hardening laws for the plastic deformation of magnesium and its alloy.

000014330 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014330 653__ $$a

000014330 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014330 720__ $$aSong, Weidong
000014330 8560_ $$ffischerc@itam.cas.cz
000014330 8564_ $$s136108$$uhttps://invenio.itam.cas.cz/record/14330/files/PO.SM13-1.15.190.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2758, code PO.SM13-1.15.190
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000014330 962__ $$r13812
000014330 980__ $$aPAPER