Role of void shape on shock responses of nanoporous metallic glasses via molecular dynamics simulation

W Song, Y Yu, Y Guan - International Journal of Mechanical Sciences, 2022 - Elsevier
The void shape significantly affects the mechanical properties of nanoporous metallic
glasses (NPMGs) under conventional loading. However, how the shock responses of …

Observation of cavitation governing fracture in glasses

LQ Shen, JH Yu, XC Tang, BA Sun, YH Liu, HY Bai… - Science …, 2021 - science.org
Crack propagation is the major vehicle for material failure, but the mechanisms by which
cracks propagate remain longstanding riddles, especially for glassy materials with a long …

A general finite element based non-local theory for the medium-long-range correlation of metallic glasses

YH Mo, XC Tang, LY Meng, XH Yao - International Journal of Plasticity, 2023 - Elsevier
Mean-field theory is extensively used in statistical physics, solid-state physics, and
biophysics to compress a large number of interacting multi-body problems into an effective …

Temperature and strain rate sensitivity of yield strength of amorphous polymers: Characterization and modeling

M Yang, W Li, P Dong, Y Ma, Y He, Z Zhao, L Chen - Polymer, 2022 - Elsevier
This study aimed to quantitatively characterize and model the evolution of yield strength of
amorphous polymers with temperature and strain rate with an emphasis on temperature …

Tuning the mechanical properties of cellular metallic glasses

WH Lin, CM She, CY Zhang, PS Branicio… - International Journal of …, 2022 - Elsevier
The mechanical properties of cellular metallic glasses (MGs) are governed by the shape of
their cellular structures. We employ finite element method analysis to characterize the …

Crack tip cavitation in metallic glasses

X Tang, L Shen, H Zhang, W Li, W Wang - Journal of Non-Crystalline Solids, 2022 - Elsevier
Metallic glasses (MGs) are potential engineering materials, however their ductility is
currently a limiting factor. Despite significant attempts to improve their fracture toughness …

Gradient-enhanced modelling of deformation-induced anisotropic damage in metallic glasses

J Shi, S Ma, JP Best, M Stolpe, S Wei, P Zhang… - Journal of the …, 2022 - Elsevier
Recent experimental and computational studies at different scales reveal an apparent flow-
induced anisotropy of the inelastic deformation behaviour in metallic glasses (MGs) …

A micromechanics-based framework to predict transitions between dimple and cup-cone fracture modes in shocked metallic glasses

XC Tang, XH Yao, JW Wilkerson - International Journal of Plasticity, 2021 - Elsevier
In an earlier work (Tang et al., 2020), we derived evolution equations governing dynamic
void growth in amorphous materials with a number of idealizing assumptions. Here, we …

Onset of dynamic void coalescence in porous ductile solids

ZG Liu, WH Wong, TF Guo - International Journal of Plasticity, 2024 - Elsevier
This paper investigates void growth and coalescence in porous ductile solids under dynamic
loading condition. A physical definition for the onset of void coalescence in porous ductile …

Unraveling the threshold stress of structural rejuvenation of metallic glasses via thermo-mechanical creep

G Ding, F Jiang, X Song, LH Dai, MQ Jiang - Science China Physics …, 2022 - Springer
The competition between physical aging and structural rejuvenation determines the physical
and mechanical properties of glassy materials. Thus, the rejuvenation-aging boundary must …