Three dimensional fracture mechanics computations using tetrahedral finite elements
Name
43320058-MIT.pdf
Description
Full printable version
Size
6.75 MB
Format
Adobe PDF
Checksum (MD5)
e31dc14fb0c1658f2d00d8693df860ec
Author(s)
Rajaram, Harish, 1976-
Advisor(s)
David M. Parks.
Alternative Title
3D fracture mechanics computations using tetrahedral finite elements
Date Issued
1999
Publisher
Massachusetts Institute of Technology
Abstract
With the development of CAD packages which can create complicated 3-D models and mesh them with tetrahedral elements with relative ease, the application of finite element techniques in mechanical design has reached unprecedented proportions. However, the extension of these techniques to fracture mechanics studies is hindered by the unavailability of a general method to obtain fracture mechanics singularity strength (J, K1, etc.) for tetrahedral meshes. An approach to obtain these parameters along a 3-D crack front using tetrahedral elements is presented here. The method is then validated on well-known crack geometries using tetrahedral meshes generated from commercially-available CAD-FEA packages or both elastic and elastic-plastic problems.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
Includes bibliographical references (leaves 130-133).
Subjects
Mechanical Engineering
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
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