Failure criterion for metallic glasses | |
Chen Y(陈艳); Jiang MQ(蒋敏强); Wei YJ(魏宇杰); Dai LH(戴兰宏); Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China | |
Source Publication | Philosophical Magazine |
2011 | |
Volume | 91Issue:36Pages:4536-4554 |
ISSN | 1478-6435 |
Abstract | Metallic glasses exhibit not only multiple failure modes but also differences in ultimate strength, plastic strain to fracture and asymmetric deviation of failure angles from 45 degrees between tension and compression. The available failure theories cannot fully characterize these phenomena and the underlying physics has not been completely clarified. Here, based on the short-range order structure in metallic glasses, we derive an inherent law that determines when metallic glasses might yield or fracture. A unified failure criterion is constructed which satisfactorily predicts the complex failure behavior observed in metallic glasses. We show that the shear-to-normal strength ratio alpha and the strength-differential factor beta, characterizing shearing resistance between atomic layers and shear-caused dilatation, respectively, have dual control over whether metallic glasses yield in a ductile manner or fracture in brittleness. |
Keyword | Failure Criterion Strength-differential Effect Brittle-ductile Transition Fracture Mechanics Metallic Glasses Bulk Amorphous-alloys Nearest-neighbor Distance Mechanical-properties Plastic-flow Shear-band Gaussian Distribution Pressure Sensitivity Inhomogeneous Flow Structural Model Tensile Fracture |
Subject Area | Materials Science ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics |
DOI | 10.1080/14786435.2011.613859 |
URL | 查看原文 |
Indexed By | SCI ; EI |
Language | 英语 |
WOS ID | WOS:000298585800002 |
WOS Keyword | BULK AMORPHOUS-ALLOYS ; NEAREST-NEIGHBOR DISTANCE ; MECHANICAL-PROPERTIES ; PLASTIC-FLOW ; SHEAR-BAND ; GAUSSIAN DISTRIBUTION ; PRESSURE SENSITIVITY ; INHOMOGENEOUS FLOW ; STRUCTURAL MODEL ; TENSILE FRACTURE |
WOS Research Area | Materials Science ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics |
WOS Subject | Materials Science, Multidisciplinary ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter |
Funding Organization | Financial support from the NSFC (Grants Nos. 10725211, 11002144 and 11021262), the National Natural Science Foundation of China-NSAF (Grant No. 10976100), the National Basic Research of China (Grant No. 2009CB724401), and the Key Project of Chinese Academy of Sciences (Nos. KJCX2-YW-M04) is acknowledged. |
Department | LNM冲击动力学与新型材料力学性能 |
Classification | 一类 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/44956 |
Collection | 非线性力学国家重点实验室 |
Corresponding Author | Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
Recommended Citation GB/T 7714 | Chen Y,Jiang MQ,Wei YJ,et al. Failure criterion for metallic glasses[J]. Philosophical Magazine,2011,91,36,:4536-4554. |
APA | 陈艳,蒋敏强,魏宇杰,戴兰宏,&Dai, LH .(2011).Failure criterion for metallic glasses.Philosophical Magazine,91(36),4536-4554. |
MLA | 陈艳,et al."Failure criterion for metallic glasses".Philosophical Magazine 91.36(2011):4536-4554. |
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