# Also in the Article

MD simulation of mechanical test
This protocol is extracted from research article:
Fast surface dynamics enabled cold joining of metallic glasses

Procedure

To test the interface bonding strength of samples, all samples were deformed by applying uniaxial tension parallel to the y direction with a constant strain rate of 1 × 107 s−1 at a constant temperature of 300 K. The pressure in the x and z directions was kept zero, allowing for lateral contraction. The atomic-scale deformation mechanism was analyzed by visualizing the nonaffine squared displacements $Dj2$ (52), which is defined by $Dj2(t,Δt)=1Nj∑k∈Nj[r→jk(t)−γjr→jk(t−Δt)]$, where $γj=Yj−1XjYj=∑k∈Nj[r→jk(t−Δt)]T[r→jk(t−Δt)]$ and $r→jk=r→k−r→j$. We take Dj, the square root of $Dj2$, as the nonaffine displacement of each atom (fig. S10).

Note: The content above has been extracted from a research article, so it may not display correctly.

Q&A