| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1600040 | Intermetallics | 2015 | 5 Pages |
•Dynamic fragmentation induced by network-like shear bands is observed in BMGs.•A model of shear bands including the effect of elastic strain energy is proposed.•The competition between strain energy and dissipated energy induces fragmentation.
Dynamic fragmentation induced by network-like shear bands is observed in a Zr-based bulk metallic glass subjected to impact loading, which is different from shear failure via one dominant shear band under quasi-static compression. Further, the influence of elastic strain energy on the evolution of shear bands is investigated. It is shown that the shear-band pattern occurring in one dominated mode or in multiple modes strongly depends on the loading rates. Dynamic fragmentation is due to the competition between the elastic strain energy driving a shear band and the dissipated energy along the shear band.
