Abstract
A Three-Dimensional extended finite element method for the Abaqus finite element package (XFA3D) is developed and implemented for curvilinear fatigue crack growth and life prediction analysis of metallic structures. Given the presence of a relatively large plastic zone and the 3D crack growth behavior in a large scale aluminum structure, an advanced integration scheme along with a narrow band approach has been developed in the X-FEM framework with a level set description of initial and moving cracks. The proposed technique allows arbitrary insertion of initial cracks, independent of a base 3D model, and allows nonself- similar crack growth pattern without conforming to the existing mesh or local remeshing. The tool has shown its great potential to be used in various designs and analysis practices such as illustrated in the examples.
| Original language | English (US) |
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| Title of host publication | 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference |
| State | Published - Dec 16 2010 |
| Event | 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Orlando, FL, United States Duration: Apr 12 2010 → Apr 15 2010 |
Other
| Other | 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference |
|---|---|
| Country/Territory | United States |
| City | Orlando, FL |
| Period | 4/12/10 → 4/15/10 |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Mechanics of Materials
- Building and Construction
- Architecture