Stable 3D XFEM/vector level sets for non-planar 3D crack propagation and comparison of enrichment schemes

2017 ◽  
Vol 113 (2) ◽  
pp. 252-276 ◽  
Author(s):  
Konstantinos Agathos ◽  
Giulio Ventura ◽  
Eleni Chatzi ◽  
Stéphane P. A. Bordas
Keyword(s):  
Crack Propagation ◽  
Level Sets ◽  
3D Crack Propagation

3D Crack propagation in unreinforced concrete.

2006 ◽  
Vol 195 (37-40) ◽  
pp. 5198-5219 ◽  
Author(s):  
Thomas C. Gasser ◽  
Gerhard A. Holzapfel
Keyword(s):  
Crack Propagation ◽  
3D Crack Propagation

Dynamic characteristics of cracked gear and three-dimensional crack propagation analysis

2012 ◽  
Vol 227 (6) ◽  
pp. 1341-1361 ◽  
Author(s):  
Renping Shao ◽  
Purong Jia ◽  
Feifei Dong
Keyword(s):  
Crack Propagation ◽  
Dynamic Characteristics ◽  
Gear Tooth ◽  
Three Dimensional ◽  
Beam Theory ◽  
Circular Crack ◽  
Propagation Path ◽  
Tooth Root ◽  
3D Crack Propagation ◽  
Three Dimensional Finite Element

The dynamic model and three-dimensional finite element analytical model of cracked gear structure are established respectively according to the cracked beam theory, and the dynamic characteristics (natural frequency, vibration shape) of cracked gear body are investigated. Further the influences of crack position and crack length on the dynamic characteristics of gear structure are simulated and discussed. On this basis, the fracture and damage of gear structure are investigated according to the theory of fracture mechanics. Using FRANC3D software, the three-dimensional (3D) propagation of crack at tooth root for involute gear is simulated, and stress intensity factor (SIF)s of semi-circular crack at tooth root including three types are analyzed, their variation laws are gained, then the expressions of SIFs are obtained by numerical fitting FEM results. Based on this, the 3D crack propagation path at tooth root is simulated and discussed, then, it is verified by comparing to experimental results, according to the mutation of the maximum SIF at crack tip, the fracture and damage of gear tooth are judged, and its work life also is predicted. These have very important value for damage monitoring and diagnosis of gear.

scholarly journals 20520 3D Crack Propagation Analysis Using Free Mesh Method

2006 ◽  
Vol 2006.12 (0) ◽  
pp. 263-264
Author(s):  
Hiroaki OSAKI ◽  
Hitoshi MATSUBARA ◽  
Genki YAGAWA
Keyword(s):  
Crack Propagation ◽  
Propagation Analysis ◽  
Mesh Method ◽  
3D Crack Propagation

Effective 2D and 3D crack propagation with local mesh refinement and the screened Poisson equation

2018 ◽  
Vol 189 ◽  
pp. 339-360 ◽  
Author(s):  
P. Areias ◽  
J. Reinoso ◽  
P.P. Camanho ◽  
J. César de Sá ◽  
T. Rabczuk
Keyword(s):  
Crack Propagation ◽  
Poisson Equation ◽  
Mesh Refinement ◽  
Local Mesh Refinement ◽  
3D Crack Propagation ◽  
2D And 3D
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