Basic Mechanisms of Spall from Near-Surface Explosions.
Final rept. 1 Apr-31 Oct 80,
APPLIED RESEARCH ASSOCIATES INC ALBUQUERQUE NM
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The current state of the art on explosion-induced spall in geologic materials is examined, with emphasis on spall in soil due to near surface explosions. At present there is neither a generally accepted, precise, technical definition of, nor a generally accepted technique for predicting explosion-induced spall in soil. Several mechanisms can cause spall in soil, and the key to a better understanding of soil spall is a better understanding of soil tensile stress-strain behavior. Author