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A hybrid phase-field isogeometric analysis to crack propagation in porous functionally graded structures
- Source :
- ENGINEERING WITH COMPUTERS
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Porosities exist as pores of different sizes within a structure to fabricate lightweight materials and the sintering process. The porous structure gives a lower loading capacity than the perfect design. Crack propagation is also a complicated behavior in this structure. The hybrid phase-field approach is suitable to provide an effective computational tool to model the crack propagation of functionally graded materials with porosity effects. We show the influence of porosity on both the critical force and crack path of the FGM structure. In the framework of isogeometric analysis (IGA), a local refinement multi-patch algorithm based on the Virtual Uncommon-Knot-Inserted Master-Slave (VUKIMS) technique allows us to reduce the computational cost of the phase-field model significantly. The study revealed that cubic NURBS elements with the effective element size of half length-scale parameter could be used to achieve the desired accuracy while maintaining a reasonable computational cost.
- Subjects :
- Technology and Engineering
Materials science
Field (physics)
MODELS
Phase (waves)
Functionally graded material
Isogeometric analysis
VIBRATION ANALYSIS
FINITE-ELEMENT-METHOD
Modelling and Simulation
NURBS-based finite elements
IMPLEMENTATION
FAILURE
Phase-field model
Porosity
FORMULATION
business.industry
General Engineering
Process (computing)
Fracture mechanics
BRITTLE-FRACTURE
Structural engineering
DEGRADATION
Computer Science Applications
Functionally graded
material
Modeling and Simulation
Path (graph theory)
GROWTH
Local refinement mesh
ABAQUS
business
Software
APPROXIMATION
Subjects
Details
- ISSN :
- 14355663 and 01770667
- Volume :
- 39
- Database :
- OpenAIRE
- Journal :
- Engineering with Computers
- Accession number :
- edsair.doi.dedup.....faac1a2ffe02068526cbe56f66e32a7b