A particle interaction-based crack model using an improved smoothed particle hydrodynamics for fatigue crack growth simulations

An efficient crack growth model using a total Lagrangian smoothed particle hydrodynamics based on the conservation of momentum, deformation gradient, and the asymmetric kernel is proposed to improve the flexibility of fatigue crack growth simulations. A set of particles are used to represent the phy...

Full description

Saved in:
Bibliographic Details
Published in:International journal of fracture 2021-06, Vol.229 (2), p.229-244
Main Authors: Wiragunarsa, I Made, Zuhal, Lavi Rizki, Dirgantara, Tatacipta, Putra, Ichsan Setya
Format: Article
Language:English
Subjects:
Automotive Engineering
Characterization and Evaluation of Materials
Chemistry and Materials Science
Civil Engineering
Classical Mechanics
Computational fluid dynamics
Crack propagation
Crack tips
Fatigue failure
Fatigue tests
Fluid flow
Fluid mechanics
Fracture mechanics
Growth models
Materials Science
Mechanical Engineering
Original Paper
Particle interactions
Smooth particle hydrodynamics
Stress intensity factors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An efficient crack growth model using a total Lagrangian smoothed particle hydrodynamics based on the conservation of momentum, deformation gradient, and the asymmetric kernel is proposed to improve the flexibility of fatigue crack growth simulations. A set of particles are used to represent the physical domain. The crack region is modeled by eliminating the interaction between two particles that cross the crack line. The crack growth direction is determined by the maximum principal stress, in which the particle that has the maximum principal stress will lose its interactions with the neighbor particles. The proposed method’s performance is tested by the fatigue crack growth problem, in which the crack growth direction and stress intensity factor show a good agreement with the references. It is found that the method is efficient for the crack propagation problem, which does not require particle update and any special treatment at the crack tips when the crack propagate.
ISSN:0376-9429
1573-2673
DOI:10.1007/s10704-021-00553-8