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A computational strategy for damage-tolerant design of hollow shafts under mixed-mode loading condition
- Publication Year :
- 2019
-
Abstract
- Three-dimensional numerical analyses, using the finite element method (FEM), have been adopted to simulate fatigue crack propagation in a hollow cylindrical specimen, under pure axial or combined axial-torsion loading conditions. Specimens, made of Al alloys B95AT and D16T, have been experimentally tested under pure axial load and combined in-phase constant amplitude axial and torsional loadings. The stress intensity factors (SIFs) have been calculated, according to the J-integral approach, along the front of a part through crack, initiated in correspondence of the outer surface of a hollow cylindrical specimen. The crack path is evaluated by using the maximum energy release rate (MERR) criterion, whereas the Paris law is used to calculate crack growth rates. A numerical and experimental comparison of the results is presented, showing a good agreement in terms of crack growth rates and paths.
- Subjects :
- Materials science
business.industry
Mechanical Engineering
crack propagation
finite element method
mixed-mode fracture
multiaxial fatigue
Materials Science (all)
Mechanics of Materials
0211 other engineering and technologies
02 engineering and technology
Structural engineering
Mixed mode
020303 mechanical engineering & transports
0203 mechanical engineering
General Materials Science
Mechanics of Material
business
021101 geological & geomatics engineering
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....884f6e5a23379646d430464a8a469d8a