scholarly journals Effects of dynamic deformation and fracture in the Klein – Gordon stress field

2020 ◽  
Vol 28 ◽  
pp. 1303-1309
Author(s):  
Liudmila Igusheva ◽  
Yuri Petrov
Keyword(s):  
Stress Field ◽  
Dynamic Deformation ◽  
Deformation And Fracture ◽  
Klein Gordon

Dynamic Deformation and Fracture Behavior of Zr-Based Bulk Metallic Glasses

2007 ◽  
Vol 345-346 ◽  
pp. 629-632
Author(s):  
Dong Geun Lee ◽  
Yang Gon Kim ◽  
Byoung Chul Hwang ◽  
Sung Hak Lee ◽  
Nack J. Kim
Keyword(s):  
Compressive Stress ◽  
Fracture Behavior ◽  
Dynamic Deformation ◽  
Dynamic Properties ◽  
Shear Bands ◽  
Total Strain ◽  
Maximum Compressive Stress ◽  
Amorphous Phases ◽  
Deformation And Fracture ◽  
Dynamic Compressive Test

Dynamic deformation and fracture behavior of Zr-based bulk metallic glass (BMG) and BMG composite containing dendritic β phases was investigated in this study. Dynamic compressive test results indicated that both maximum compressive stress and total strain of the BMG and BMG composite decreased with increasing test temperature because shear bands could propagate rapidly as the adiabatic heating effect was added at high temperatures. Above the glass transition temperature, total strain decreased more abruptly due to crystallization of amorphous phases. Maximum compressive stress and total strain of the BMG composite were higher than those of the BMG because β phases played a role in forming multiple shear bands. The BMG composite having more excellent dynamic properties than the BMG can be more reliably applied to the structures or parts requiring dynamic properties.

scholarly journals Dynamic deformation and fracture of single crystal silicon: Fracture modes, damage laws, and anisotropy

2016 ◽  
Vol 114 ◽  
pp. 136-145 ◽  
Author(s):  
J.Y. Huang ◽  
J.C. E ◽  
J.W. Huang ◽  
T. Sun ◽  
K. Fezzaa ◽  
...  
Keyword(s):  
Single Crystal ◽  
Dynamic Deformation ◽  
Single Crystal Silicon ◽  
Crystal Silicon ◽  
Fracture Modes ◽  
Deformation And Fracture

A computational study of the dynamic deformation and fracture in a coated material

2016 ◽  
Author(s):  
R. R. Balokhonov ◽  
S. A. Martynov ◽  
V. A. Romanova ◽  
E. E. Batukhtina ◽  
V. S. Shakhijanov
Keyword(s):  
Dynamic Deformation ◽  
Computational Study ◽  
Coated Material ◽  
Deformation And Fracture

DYNAMIC DEFORMATION AND FRACTURE BEHAVIOR OF ULTRA-FINE-GRAINED DUAL PHASE STEELS FABRICATED BY EQUAL CHANNEL ANGULAR PRESSING

2008 ◽  
Vol 22 (09n11) ◽  
pp. 1159-1164
Author(s):  
YANG GON KIM ◽  
BYOUNGCHUL HWANG ◽  
SUNGHAK LEE ◽  
DONG HYUK SHIN
Keyword(s):  
Equal Channel Angular Pressing ◽  
Fracture Behavior ◽  
Dynamic Deformation ◽  
Maximum Shear Stress ◽  
Annealed Specimen ◽  
Dual Phase ◽  
Dual Phase Steels ◽  
Fine Grained ◽  
Angular Pressing ◽  
Deformation And Fracture

In this study, dynamic deformation and fracture behavior of ultra-fine-grained dual phase steels fabricated by equal channel angular pressing (ECAP) was compared with that of conventionally annealed ultra-fine-grained steels. In the ECAPed conventionally annealed specimen, pearlites were decomposed, and the ferrite grain size increased up to 0.5 μm. The intercritically annealed specimen consisted of dual phases of equiaxed ferrites and blocky martensites (volume fraction; 35%, size; 1 μm). The dynamic torsional test results indicated that maximum shear stress of the annealed specimens was lower than that of the as-pressed specimen, but fracture shear strain was higher. These results suggested that annealing or promoting dual phase microstructures of the ECAPed specimens could be a good way to increase the fracture resistance under dynamic loading, as it reduced or prevented the formation of adiabatic shear bands or voids. In particular, the ECAPed ultra-fine-grained dual phase steel can be more reliably used under dynamic conditions since it overcomes the shortcomings of reduced strain hardenability, ductility, and dynamic properties.

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