The present work uses a full-field crystal plasticity model with a first principles-informed dislocation density (DD) hardening law to identify the key microstructural features correlated …
H Zhang, X Dong - Materials Science and Engineering: A, 2016 - Elsevier
A more comprehensive investigation of size effects is essential for the design and optimization of micro-metal forming processes. In this work, the micro-tension of …
S Dindarlou, GM Castelluccio - International Journal of Plasticity, 2022 - Elsevier
Even though crystal plasticity models have been available for decades, the quantification of material parameters is still a matter of debate. Polycrystalline experimental results can …
JY Zheng, JQ Ran, MW Fu - International Journal of Mechanical Sciences, 2022 - Elsevier
Traditional macro-scaled plasticity theories may not be fully valid and accurate in study of meso-/micro-scaled deformation due to the existence of size effects (SEs). In …
Predictions of the mechanical response of polycrystalline metals and underlying microstructure evolution and deformation mechanisms are critically important for the …
Crystal structure determines the distinct deformation mode of crystalline materials and thus plays a critical role in micro-scale deformation. The micro-deformation mechanism at grain …
H Zhang, X Dong - Computational Materials Science, 2015 - Elsevier
Due to size effects, the conventional material constitutive models are no longer valid in the investigation of micro-forming processes. In this work, a nonlocal physically based crystal …
D Raabe, M Sachtleber, Z Zhao, F Roters, S Zaefferer - Acta materialia, 2001 - Elsevier
A polycrystalline aluminum sample with a quasi-2D single layer of coarse grains is plastically deformed in a channel die plane strain set-up at ambient temperature and low …
An important frontier in both metallurgy and mechanics is the development of a modelling framework that accurately represents length-scale effects and dislocation structure …