Solution of problems with material nonlinearities with a coupled finite element/boundary element scheme using an iterative solver. Yucca Mountain Site Characterization Project Page: 4 of 44
37 p.View a full description of this report.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
Contents
Solution of Problems with Material Nonlinearities with a Coupled
Finite Element/Boundary Element Scheme Using an Iterative
Solver
Introduction................................................................................................................ 1
Elastic-Plastic Problems............................................................................................. 2
Elastic-Plastic State of a Thick-Walled Tube................................................................2
Pressurized Tube: Finite Element Model.......................................................................5
Solution of Nonlinear Cylindrical Cavity Problems Using a Coupled Finite Element/
Boundary Element Technique..................................................................................9
Jointed Rock Problems .............................................................................................. 18
Pressurized Circular Cavity: Material Interface at 16 m .............................................18
Pressurized Circular Cavity: Material Interface at 27 m .............................................25
Conclusions................................................................................................................ 30
References.................................................................................................................. 31
Figures
Figure 1. Cylindrical Tube Under Pressure............................................................. 3
Figure 2. Geometry and Boundary Conditions for Cylindrical Tube Problem Modeled
with Finite Elem ents.............................................................................. 6
Figure 3. Comparison of Finite Element and Analytic Results (b = 200 m)........... 7
Figure 4. Comparison of Analytic and Finite Element Results (b = 400 m)........... 8
Figure 5. Geometry for Cylindrical Cavity Problem for Two Materials................ 11
Figure 6. Mesh for Coupled Problem with Material Interface at r = 16 m............ 12
Figure 7. Comparison of Coupled and Finite Element Model Results for Cylindrical
Cavity Problem with Material Interface at 16 m .................................... 13
Figure 8. Comparison of Coupled Results with Material Interface at 16 m with Results
from Cavity in Elastic-Plastic Medium Only........................................... 14
Figure 9. Mesh for Coupled Problem with Material Interface at r =27 m ............ 15
Figure 10. Comparison of Coupled and Finite Element Model Results for Cylindrical
Cavity Problem with Material Interface at 27 m .................................... 16
Figure 11. Comparison of Coupled Results with Material Interface at 27 m with Results
from Cavity in Elastic-Plastic Medium Only........................................... 17
Figure 12. Comparison of Coupled and Finite Element Model Results for Cylindrical
Cavity Problem with Material Interface at 40 m .................................... 18
Figure 13. Geometry for Cylindrical Cavity Problem.............................................. 19
Figure 14. Geometry and Boundary Conditions for Finite Element Model for Circular
Cavity Problems (Not to Scale) ............................................................... 21
Figure 15. Mesh for Coupled Problem with Material Interface at 16 m.................. 22
Figure 16. Comparison of Coupled and Finite Element Displacement Results at Points on
the Cavity Surface (Material Interface at 16 m) ...................................... 23
Figure 17. Comparison of Coupled and Finite Element Stress Results for an Element on theiv
Upcoming Pages
Here’s what’s next.
Search Inside
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Koteras, J.R. Solution of problems with material nonlinearities with a coupled finite element/boundary element scheme using an iterative solver. Yucca Mountain Site Characterization Project, report, January 1, 1996; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc667311/m1/4/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.