| Issue |
EPJ Web of Conferences
Volume 94, 2015
DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|
|
|---|---|---|
| Article Number | 02016 | |
| Number of page(s) | 5 | |
| Section | Microstructural Effects | |
| DOI | https://doi.org/10.1051/epjconf/20159402016 | |
| Published online | 07 September 2015 | |
https://doi.org/10.1051/epjconf/20159402016
Penny-shaped crack propagation in spallation of Zr-BMGs
1 LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, PR China
2 Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621900, PR China
a Corresponding author: lingz@lnm.imech.ac.cn
Published online: 7 September 2015
Typical penny-shaped microcracks at their propagating in spallation of Zr-based bulk metallic glass (Zr-BMG) samples were captured by a specially designed plate impact technique. Based on the morphology and stress environment of the microcrack, a damaged zone or propagation zone around the crack tips, similar to the cohesive zone in classical fracture theories, is applied. Especially the scale of such a damaged zone represents a scale of the crack propagation. Its fast propagation would quickly bring a longer crack or cause cracks coalesce to form another longer one. The estimated propagation scales of microcracks are reasonable compared with what occurred in the Zr-BMG samples.
© Owned by the authors, published by EDP Sciences, 2015
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