Crack-Tip Plastic Zone Size and Shape via DIC

2018 ◽  
pp. 5-10
Author(s):  
G. L. G. Gonzáles ◽  
J. A. O. González ◽  
V. E. L. Paiva ◽  
J. L. F. Freire
Keyword(s):  
Plastic Zone ◽  
Crack Tip ◽  
Plastic Zone Size ◽  
Zone Size ◽  
Size And Shape

scholarly journals Assessment of crack tip plastic zone size and shape and its influence on crack tip shielding

2016 ◽  
Vol 39 (8) ◽  
pp. 969-981 ◽  
Author(s):  
J. M. Vasco-Olmo ◽  
M. N. James ◽  
C. J. Christopher ◽  
E. A. Patterson ◽  
F. A. Díaz
Keyword(s):  
Plastic Zone ◽  
Crack Tip ◽  
Plastic Zone Size ◽  
Zone Size ◽  
Size And Shape ◽  
Crack Tip Shielding

Analytical Prediction Model for Fatigue Crack Propagation Rate under Tension-Compression Loading

2013 ◽  
Vol 842 ◽  
pp. 455-461
Author(s):  
Yu Sha ◽  
Shi Gang Bai ◽  
Ya Hui Wang
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Plastic Zone ◽  
Crack Propagation ◽  
Compressive Stress ◽  
Fatigue Crack Propagation ◽  
Crack Tip ◽  
Plastic Zone Size ◽  
Zone Size ◽  
Compression Loading

Elastic–plastic finite element analyses have been performed to study the compressive stress effect on fatigue crack growth under applied tension–compression loading. The near crack tip stress, crack tip opening displacement and crack tip plastic zone size were obtained for a kinematic hardening material. The results have shown that the near crack tip local stress, displacement and reverse plastic zone size are controlled by the maximum stress intensity factors Kmax and the applied compressive stress σmaxcom under tension–compression. Based on the finite element analysis results, a fatigue crack propagation model using Kmax and σmaxcom as a parameters under tension–compression loading has been developed.The models under tension–compression loading agreed well with experimental observations.

Plastic zone at crack tip: A nanolab for formation and study of metallic glassy nanostructures

2009 ◽  
Vol 24 (9) ◽  
pp. 2986-2992 ◽  
Author(s):  
X.X. Xia ◽  
Wei H. Wang ◽  
A. Lindsay Greer
Keyword(s):  
Fracture Surface ◽  
Plastic Zone ◽  
Metallic Glasses ◽  
Room Temperature ◽  
Crack Tip ◽  
Plastic Zone Size ◽  
Fracture Mechanisms ◽  
Clear Correlation ◽  
Zone Size ◽  
Deformation And Fracture

We report that various metallic glassy nanostructures including nanoridges, nanocones, nanowires, nanospheres, and nanoscale-striped patterns are spontaneously formed on the fracture surface of bulk metallic glasses at room temperature. A clear correlation between the dimensions of these nanostructures and the size of the plastic zone at the crack tip has been found, providing a way to control nanostructure sizes by controlling the plastic zone size intrinsically or extrinsically. This approach to forming metallic glassy nanostructures also has implications for understanding the deformation and fracture mechanisms of metallic glasses.

Micro-cavity Effect on the Plastic Zone Size ahead of the Crack Tip in Confined Plasticity

2010 ◽  
pp. 229-236
Author(s):  
M. El Meguenni ◽  
B. Bachir Bouiadjra ◽  
M. Benguediab ◽  
A. Ziadi ◽  
M. Naït-Abdelaziz ◽  
...  
Keyword(s):  
Plastic Zone ◽  
Crack Tip ◽  
Plastic Zone Size ◽  
Zone Size ◽  
Micro Cavity ◽  
Cavity Effect

207 Simple evaluation method for plastic zone size at a crack tip emanating from notch root

2015 ◽  
Vol 2015.68 (0) ◽  
pp. 53-54
Author(s):  
Shohei MIYANAGA ◽  
Akihide SAIMOTO ◽  
Takuichiro INO ◽  
Shota TANIGAWA ◽  
Takayuki HIGASHI
Keyword(s):  
Plastic Zone ◽  
Evaluation Method ◽  
Notch Root ◽  
Crack Tip ◽  
Plastic Zone Size ◽  
Zone Size ◽  
Simple Evaluation
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