A computational model for jointed media with orthogonal sets of joints
The numerical implementation of a constitutive model for jointed rock media is the subject of investigation in this report. The constitutive model is based on the continuum assumption of strain-partitioning among the elastic rock matrix and joint sets with nonlinear normal and shear responses. Rate equations for the stress-strain response of the jointed media have been formulated. A numerical incremental solution scheme to these equations has been developed. It has been implemented into the finite element code JAC as an additional material model. Input instructions and FORTRAN listings of the material model pertaining to execution of JAC on the Sandia Cray 1S are included in the Appendix. Several sample problems have been solved for demonstration purposes. Interpretation and discussion of these results are presented.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 60043
- Report Number(s):
- SAND--86-1122; ON: DE87007826
- Country of Publication:
- United States
- Language:
- English
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