Fracture behavior of a Zr-metallic glass under dynamic compression

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	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
会议录名称	DYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 1
	2009
页码	575-581
会议名称	9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
会议日期	SEP 07-11, 2009
会议地点	Brussels, BELGIUM
摘要	Dynamic 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.
关键词	Bulk Steel Flow
ISBN号	978-2-7598-0472-6
URL	查看原文
收录类别	CPCI-S
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/44348
专题	非线性力学国家重点实验室
通讯作者	Ling Z
推荐引用方式 GB/T 7714	Ling Z,Meng JX,Jiang MQ,et al. Fracture behavior of a Zr-metallic glass under dynamic compression[C]DYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 1,2009:575-581.

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