A Study of the Failure Wave Phenomenon in Brittle Materials

2004 ◽  
Author(s):  
G. I. Kanel
Keyword(s):  
Wave Phenomenon ◽  
Brittle Materials ◽  
Failure Wave

Failure wave as resonance excitation of collective burst modes of defects in shocked brittle materials

2000 ◽  
Vol 10 (PR9) ◽  
pp. Pr9-811-Pr9-816 ◽  
Author(s):  
O. A. Plekhov ◽  
D. N. Eremeev ◽  
O. B. Naimark
Keyword(s):  
Brittle Materials ◽  
Resonance Excitation ◽  
Failure Wave

The Dynamic Response of Brittle Materials under Impact Loading

2017 ◽  
Vol 18 (2) ◽  
pp. 115-127
Author(s):  
Zhijia Zheng ◽  
Enzhi Wang ◽  
Xiaoli Liu ◽  
Zhuoping Duan ◽  
Liansheng Zhang ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Damage Model ◽  
Brittle Materials ◽  
Dynamic Responses ◽  
Failure Wave ◽  
Micro Cracks ◽  
Simulation Results ◽  
Materials Failure ◽  
Impact Experiments ◽  
Meso Scale

AbstractIn order to make sense of the dynamic response of brittle materials under the certain range of impact strength, the numerical simulation for two kinds of representative ones glass and ceramic are conducted, in which the elastic micro-crack damage model is used. The plane impact experiments of ceramic and glass are summarized, which are used to compare with the simulation results. The simulation results show that the dynamic responses of brittle materials, failure wave and the plastic-like response appeared in glass and ceramic respectively are depended on their micro-cracks distribution in meso-scale. And moreover, both of failure wave and the plastic-like response are controlled by the same mechanism, and the different phenomena are just influenced by the size and distribution of the micro-cracks.

Fracture Model of the Failure Wave in the Shocked Brittle Materials

2012 ◽  
Vol 446-449 ◽  
pp. 3718-3721
Author(s):  
Guo Wen Yao ◽  
Zheng Jie Zhou ◽  
Xiao Wei Feng
Keyword(s):  
Brittle Materials ◽  
Fracture Model ◽  
Failure Wave

Fracture Model of the Failure Wave in the Shocked Brittle Materials

2012 ◽  
Vol 446-449 ◽  
pp. 3718-3721
Author(s):  
Guo Wen Yao ◽  
Zheng Jie Zhou ◽  
Xiao Wei Feng
Keyword(s):  
Stress State ◽  
Wave Phenomenon ◽  
Nonlinear Diffusion ◽  
Failure Process ◽  
Nonlinear Diffusion Equation ◽  
Failure Model ◽  
Lateral Stress ◽  
Failure Wave ◽  
Proposed Model ◽  
Dynamic Damage

A new failure model was developed to describe the failure wave formation and propagation in shocked glass. The progressive percolation of microcracks into the stressed body gives rise to the failure wave phenomenon which could be regarded as a diffusion process. The propagation of failure front is governed by a nonlinear diffusion equation. The dynamic damage constitutive relation is built up to compute the stress state in the material through the failure process. Numerical results are presented and compared to lateral stress gauge measurements in shocked glasses. It is shown that the proposed model can capture the essence of the failure wave phenomenon.

A study of the failure wave phenomenon in glasses compressed at different levels

2005 ◽  
Vol 98 (11) ◽  
pp. 113523 ◽  
Author(s):  
G. I. Kanel ◽  
S. V. Razorenov ◽  
A. S. Savinykh ◽  
A. Rajendran ◽  
Zhen Chen
Keyword(s):  
Wave Phenomenon ◽  
Failure Wave ◽  
Different Levels

Application of TEM to Deformation, Wear, and Fracture of Ceramics

1974 ◽  
Vol 32 ◽  
pp. 472-473
Author(s):  
B. J. Hockey
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Brittle Materials ◽  
High Temperature Strength ◽  
Wide Range ◽  
Corrosive Environments ◽  
Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

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