A quasi-static crack growth simulation based on the singular ES-FEM

2011 ◽  
Vol 88 (5) ◽  
pp. 473-492 ◽  
Author(s):  
N. Nourbakhshnia ◽  
G. R. Liu
Keyword(s):  
Crack Growth ◽  
Growth Simulation ◽  
Crack Growth Simulation ◽  
Static Crack ◽  
Simulation Based

Fretting fatigue crack growth simulation based on a combined experimental and XFEM strategy

2013 ◽  
Vol 47 ◽  
pp. 31-43 ◽  
Author(s):  
M.C. Baietto ◽  
E. Pierres ◽  
A. Gravouil ◽  
B. Berthel ◽  
S. Fouvry ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Fretting Fatigue ◽  
Growth Simulation ◽  
Crack Growth Simulation ◽  
Simulation Based

scholarly journals Acceleration and Parallelization of a Linear Equation Solver for Crack Growth Simulation Based on the Phase Field Model

Mathematics ◽  
2021 ◽  
Vol 9 (18) ◽  
pp. 2248
Author(s):  
Gaku Ishii ◽  
Yusaku Yamamoto ◽  
Takeshi Takaishi
Keyword(s):  
Linear Equation ◽  
Crack Growth ◽  
Phase Field ◽  
Field Model ◽  
Multicore Processors ◽  
Phase Field Model ◽  
Growth Simulation ◽  
Crack Growth Simulation ◽  
Simulation Based ◽  
Linear Equation Solver

We aim to accelerate the linear equation solver for crack growth simulation based on the phase field model. As a first step, we analyze the properties of the coefficient matrices and prove that they are symmetric positive definite. This justifies the use of the conjugate gradient method with the efficient incomplete Cholesky preconditioner. We then parallelize this preconditioner using so-called block multi-color ordering and evaluate its performance on multicore processors. The experimental results show that our solver scales well and achieves an acceleration of several times over the original solver based on the diagonally scaled CG method.

Mixed-mode crack growth simulation in aviation engine compressor disk

2021 ◽  
Vol 246 ◽  
pp. 107617
Author(s):  
V. Shlyannikov ◽  
R. Yarullin ◽  
M. Yakovlev ◽  
V. Giannella ◽  
R. Citarella
Keyword(s):  
Crack Growth ◽  
Mixed Mode ◽  
Growth Simulation ◽  
Crack Growth Simulation ◽  
Mixed Mode Crack ◽  
Engine Compressor ◽  
Compressor Disk

Ductile Damage Model Based On Void Growth Analysis for Application to Ductile Crack Growth Simulation

2021 ◽  
Author(s):  
Takehisa Yamada ◽  
Mitsuru Ohata
Keyword(s):  
Crack Growth ◽  
Void Growth ◽  
Damage Evolution ◽  
Damage Model ◽  
Crack Growth Resistance ◽  
Growth Behavior ◽  
Ductile Crack ◽  
Growth Simulation ◽  
Crack Growth Simulation ◽  
Ductile Crack Growth

Abstract The aim of this study is to propose damage model on the basis of the mechanism for ductile fracture related to void growth and to confirm the applicability of the proposed model to ductile crack growth simulation for steel. To figure out void growth behavior, elasto-plastic finite element analyses using unit cell model with an initial void were methodically performed. From the results of those analyses, it was evident that the relationships between normalized void volume fraction and normalized strain by each critical value corresponding to crack initiation were independent of stress-strain relationship of material and stress triaxiality state. Based on this characteristic associated with void growth, damage evolution law was derived. Then, using the damage evolution law, simple and phenomenological ductile damage model reflecting void growth behavior and ductility of material was proposed. To confirm the validation and application of proposed damage model, the damage model was implemented in finite element models and ductile crack growth resistance was simulated for cracked components were performed. Then, the simulated results were compared with experimental ones and it was found that the proposed damage model could accurately predict ductile crack growth resistance and was applicable to ductile crack growth simulation.

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