Computational mechanics
The Computational Mechanics thrust area sponsors research into the underlying solid, structural and fluid mechanics and heat transfer necessary for the development of state-of-the-art general purpose computational software. The scale of computational capability spans office workstations, departmental computer servers, and Cray-class supercomputers. The DYNA, NIKE, and TOPAZ codes have achieved world fame through our broad collaborators program, in addition to their strong support of on-going Lawrence Livermore National Laboratory (LLNL) programs. Several technology transfer initiatives have been based on these established codes, teaming LLNL analysts and researchers with counterparts in industry, extending code capability to specific industrial interests of casting, metalforming, and automobile crash dynamics. The next-generation solid/structural mechanics code, ParaDyn, is targeted toward massively parallel computers, which will extend performance from gigaflop to teraflop power. Our work for FY-92 is described in the following eight articles: (1) Solution Strategies: New Approaches for Strongly Nonlinear Quasistatic Problems Using DYNA3D; (2) Enhanced Enforcement of Mechanical Contact: The Method of Augmented Lagrangians; (3) ParaDyn: New Generation Solid/Structural Mechanics Codes for Massively Parallel Processors; (4) Composite Damage Modeling; (5) HYDRA: A Parallel/Vector Flow Solver for Three-Dimensional, Transient, Incompressible Viscous How; (6) Development and Testing of the TRIM3D Radiation Heat Transfer Code; (7) A Methodology for Calculating the Seismic Response of Critical Structures; and (8) Reinforced Concrete Damage Modeling.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10194488
- Report Number(s):
- UCRL-ID--112772; ON: DE94003015
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360603
42 ENGINEERING
420200
420400
99 GENERAL AND MISCELLANEOUS
990200
COMPUTER CALCULATIONS
D CODES
DAMAGE
FACILITIES, EQUIPMENT, AND TECHNIQUES
HEAT TRANSFER AND FLUID FLOW
LAGRANGIAN FUNCTION
LAWRENCE LIVERMORE LABORATORY
MATHEMATICS AND COMPUTERS
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
MECHANICS
N CODES
NONLINEAR PROBLEMS
PARALLEL PROCESSING
RADIANT HEAT TRANSFER
REINFORCED CONCRETE
RESEARCH PROGRAMS
SEISMICITY
SOLIDS
T CODES
VISCOUS FLOW