IMECH-IR  > 非线性力学国家重点实验室
Fracture behavior of a Zr-metallic glass under dynamic compression
Ling Z(凌中); Meng JX(孟积兴); Jiang MQ(蒋敏强); Dai LH(戴兰宏); Ling Z
Source PublicationDYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 1
2009
Pages575-581
Conference Name9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
Conference DateSEP 07-11, 2009
Conference PlaceBrussels, BELGIUM
AbstractDynamic planar compressive experiments on a typical tough Zr-BMG (Bulk Metallic Glass) were carried out under impact velocity of 500-600 m/sec and strain rate of 10(6)/s. The fracture surface of samples exhibits different fracture patterns at different parts of the sample. At a corner close to the front loading boundary, fracture patterns from the free edge toward the centre changed from equiaxial veins in microscale to periodic corrugations in nanoscale; in the middle of the sample, the fracture surface contains glazed zones laid out orderly along the same boundary. FEM simulation was performed to investigate the stress distributions in the impacted sample under a short duration impact loading. It has revealed that the fracture patterns changing from the free edge toward the centre were resulted from the fracture modes' changing from the tensile dominant fracture to the shear dominant fracture. Whereas at the middle part of the sample, fracture initiated from several parallel shear bands propagating close to the same boundary is due to a large strain or much higher shear stress in this area.
KeywordBulk Steel Flow
ISBN978-2-7598-0472-6
URL查看原文
Indexed ByCPCI-S
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44348
Collection非线性力学国家重点实验室
Corresponding AuthorLing Z
Recommended Citation
GB/T 7714
Ling Z,Meng JX,Jiang MQ,et al. Fracture behavior of a Zr-metallic glass under dynamic compression[C],2009:575-581.
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