Molecular dynamics based cohesive zone modeling of Al (metal)–Cu50Zr50 (metallic glass) interfacial mechanical behavior and investigation of dissipative mechanisms
Clicks: 249
ID: 33807
2016
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
Steady Performance
65.1
/100
249 views
202 readers
Trending
AI Quality Assessment
Not analyzed
Readership in this journal
SteadyRanked #50 of 88 articles by views in materials & design
Most read
Least read
Bar heights use a square-root scale.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
We performed classical molecular dynamics (MD) simulations to predict the strength of Al (metal)–Cu50Zr50 (metallic glass) model interface at a temperature of 300 K and strain rate of 1010 s−1 under mode-I and mode-II loading conditions based on the cohesive zone model (CZM). EAM (Embedded Atom Method) potential is used for modeling the interaction between AlCuZr atoms. It is observed that the interface strength is higher than pure Al, and ruptures in the Al region by necking under mode-I loading. Atoms of Al stick to the Cu50Zr50 metallic glass after fracture due to strong bonding between AlCu and AlZr atoms than AlAl atoms as inferred from density functional theory based study. The observed dominant dissipative mechanisms at the interface are partial dislocations and stair rod dislocations under both the loading conditions. The strength of the interface decreases in the presence of a crack as expected. The traction-separation response of the interface shows a maximum stress followed by a decrease in stress indicating the complete separation of the interface. The present study gives a significant insight into metal–metallic glass interface deformation behavior and underlying mechanism. The results can be input into continuum length-scale micromechanical models that determine overall material properties. Keywords: Molecular dynamics, Interface, Mode-I, Mode-II, Dislocations
| Reference Key |
gupta2016molecularmaterials
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | Gupta, Pradeep;Pal, Snehanshu;Yedla, Natraj; |
| Journal | materials & design |
| Year | 2016 |
| DOI |
DOI not found
|
| URL | |
| Keywords | Keywords not found |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.