Molecular dynamics simulations on the intergranular crack propagation of magnesium bicrystals

Z Xing, H Fan, G Kang - Computational Materials Science, 2022 - Elsevier
As an important micro-structure, grain boundary plays a significant role in the micro-structure
evolution and mechanical property of metallic materials. In this study, comprehensive …

Interaction between collision cascades and nanocrack in hcp zirconium by molecular dynamics simulations

H Wang, C Qin, Y Zhou, X Mi, Y Wang, J Kang… - Computational Materials …, 2022 - Elsevier
In this work, molecular dynamics simulations are performed to investigate the interaction
between the collision cascades and nanocrack in hcp zirconium. When the thermal spike …

Crack propagation path selection and plastic deformation at a crack tip in zirconium

Z Wang, Q Dong, N Guo, MR Daymond - Materials Science and …, 2020 - Elsevier
The crack propagation process of a center cracked tension specimen was studied in pure
zirconium by quasi-in-situ microstructure characterization combined with finite element …

Dislocation evolution at a crack-tip in a hexagonal close packed metal under plane-stress conditions

Z Wang, C Cochrane, T Skippon, Q Dong… - Acta Materialia, 2019 - Elsevier
Understanding the stress state and microstructural features at a growing crack-tip is critical
to understanding the failure mechanisms of engineering structures. To investigate the strain …

Study on the unstable crack propagation mechanism in turning machinable ceramics based on the energy conversion principle and the fracture mechanics theory

J Jia, L Ma, W Du, Y Sun, C Dai, Y Tan… - The International Journal of …, 2023 - Springer
Through machinable ceramic turning tests, the crack propagation at the machined surface
and subsurface is explored, and the mechanism of unstable propagation is studied. The …

Interaction between crack and grain boundary in magnesium

Z Xing, H Fan, G Kang - Engineering Fracture Mechanics, 2022 - Elsevier
In polycrystalline materials, grain boundaries (GBs) play an important role in resisting crack
growth. In this study, the interaction of a crack on basal plane with GBs in magnesium was …

Atomic simulation of the orientation effects on crack tip behavior in titanium single crystal

L Chang, T Kitamura, CY Zhou - Theoretical and Applied Fracture …, 2020 - Elsevier
This work presents atomic simulations of crack tip behavior in HCP titanium single crystal
with center crack under mode I loading condition. The simulation results show that the crack …

Deformation of periodic nanovoid structures in Mg single crystals

S Xu, Y Su, SZ Chavoshi - Materials Research Express, 2018 - iopscience.iop.org
Large scale molecular dynamics (MD) simulations in Mg single crystal containing periodic
cylindrical voids subject to uniaxial tension along the z direction are carried out. Models with …

The influences of crystal orientation and crack interaction on the initiation of growth and propagation mode of microcrack: a phase-field-crystal study

S Hu, S Wang - Physica B: Condensed Matter, 2019 - Elsevier
Abstract Phase-field-crystal (PFC) method is applied to study the influences of crystal
orientation and crack interaction on the initiation of growth and propagation mode of …

Effect of crystal orientation on initiation and propagation of crack: Phase field crystal model study

Y Lu, Y Gao, Q Deng, Z Liu, Y Li, Z Huang… - The European Physical …, 2019 - Springer
The crystal phase field (PFC) method is used to simulate the propagation of the nano-crack
of samples with different crystal orientations under the strain of the uniaxial tensile. The …