Modeling the dynamic response of rock masses with multiple compliant fluid saturated joint sets—Part I: Mesoscale simulations
Journal Article
·
· International Journal of Impact Engineering
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Technion-Israel Institute of Technology, Haifa (Israel)
Recently a mesoscale model was developed that includes thermomechanically consistent constitutive equations with dissipation due to porous compaction, inelastic distortional deformation rate, and slipping on persistent dry joint surfaces. In this Part I of a two-part paper, we describe enhancements of the mesoscale model which include: normal compliance with hysteresis, non-persistent joints with finite area, joint sets with angular deviation, and the weakening effect of fluid pressure in the joints. Examples study the influences of these effects on average strength. These computationally expensive simulations are used to inspire functional forms in a continuum model, described in Part II, which is needed for large scale simulations of real applications.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1807754
- Alternate ID(s):
- OSTI ID: 1809605
- Report Number(s):
- LLNL-JRNL--806179; 1011374
- Journal Information:
- International Journal of Impact Engineering, Journal Name: International Journal of Impact Engineering Vol. 151; ISSN 0734-743X
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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