Highly localized shear deformation in a Mg–Al–Mn alloy subjected to ballistic impact

Vacuum ◽  
2019 ◽  
Vol 169 ◽  
pp. 108868 ◽  
Author(s):  
Bo Zhang ◽  
Jian-Tang Jiang ◽  
Li Liu ◽  
Guo-Ai Li ◽  
Wen-Zhu Shao ◽  
...  
Keyword(s):  
Shear Deformation ◽  
Ballistic Impact ◽  
Localized Shear Deformation

Localized Shear Deformation of Amorphous Metals

1981 ◽  
Vol 8 ◽  
Author(s):  
J.C.M. Li
Keyword(s):  
Stress Concentration ◽  
Shear Deformation ◽  
Narrow Band ◽  
Shear Localization ◽  
Amorphous Metals ◽  
Localized Deformation ◽  
Crystalline Materials ◽  
Localized Shear Deformation

ABSTRACTThe characteristics of localized deformation in amorphous metals are reviewed. All the available evidences seem to suggest that dislocations are responsible for shear localization. These dislocations seem to require a stress concentration for their nucleation. Once nucleated, they are capable of producing both forward and reverse shear in a narrow band, much like the dislocations in crystalline materials.

Localized Shear Deformation in Gum Metal at Ideal Strength

2011 ◽  
pp. 567-574 ◽  
Author(s):  
S. Kuramoto ◽  
T. Furuta ◽  
N. Nagasako ◽  
J. W. Morris
Keyword(s):  
Shear Deformation ◽  
Ideal Strength ◽  
Gum Metal ◽  
Localized Shear Deformation

TDR-Based Shear Deformation Measuring System for Slope Failure Modeling

2013 ◽  
Vol 639-640 ◽  
pp. 1155-1161 ◽  
Author(s):  
Zheng Lai Xu ◽  
Charles E. Pierce
Keyword(s):  
Shear Deformation ◽  
Slope Failure ◽  
Time Domain Reflectometry ◽  
Shaking Table ◽  
Measuring System ◽  
Failure Modeling ◽  
Custom Made ◽  
Shaking Table Testing ◽  
Localized Shear Deformation ◽  
Deformation Patterns

Physical soil models are often used to study slope failure in centrifuge and/or shaking table tests. An important part of such physical modeling is to monitor the subsurface deformation patterns of failing slopes. As an emerging technology to monitor internal deformation of geo-materials, time domain reflectometry (TDR) has been successfully applied in field monitoring of unstable slopes. This paper presents the development of a custom-made TDR sensor and its application in a 1-g slope failure model test. The test results show that the TDR system is capable of capturing localized shear deformation in small soil models. Trial studies of using the TDR system in centrifuge and shaking table experiments demonstrate that the system has the potential of being successfully applied in centrifuge and shaking table testing.

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