Response of buried structures to ground-shock loading
A two-dimensional lagrangian finite-difference computer program is developed for wave propagation analysis of buried model structures to ground-shock loading in a unified fashion. The numerical scheme is the standard method originally proposed by Von Neuman and Richtmyer, using artificial viscosity to smooth shock fronts. The analysis includes explosive detonation, ground-shock propagation, and soil-structure interaction. Three test configurations, corresponding to short, intermediate, and long standoff distances were calculated to understand the response of buried structures in terms of their standoff distance. However, since few dynamic data are available for the soil and concrete used in the construction of the test systems, and the computer code is in plane strain, the calculations were intended for generating the qualitative features of model behaviors. Nevertheless, the computational results were consistent with experimental observations and provided a rational basis to interpret modes of failure, loads profiles at concrete surface, and their inter-relationships.
- Research Organization:
- North Carolina State Univ., Raleigh, NC (USA)
- OSTI ID:
- 5233079
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
Similar Records
A relaxation-projection method for compressible flows. Part II: Artificial heat exchanges for multiphase shocks
Analysis and testing of pipe response to buried explosive detonations
Related Subjects
42 ENGINEERING
SHOCK WAVES
WAVE PROPAGATION
SOIL-STRUCTURE INTERACTIONS
UNDERGROUND EXPLOSIONS
DETONATION WAVES
FINITE DIFFERENCE METHOD
COMPUTERIZED SIMULATION
NUMERICAL SOLUTION
TWO-DIMENSIONAL CALCULATIONS
EXPLOSIONS
ITERATIVE METHODS
SIMULATION
450100* - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives
420200 - Engineering- Facilities
Equipment
& Techniques