Abstract

The effects of blast waves passing over a living organism (human or animal body) are not different in principle from those on inanimate structures. Although the immediately visible effects are functional disorders, injury, or death of the organism, the ultimate causes of these effects are certain mechanical processes—primarily severe changes of volume and large relative displacements of adjacent parts of the body. In order to obtain a quantitative understanding and assessment of the effects of a shock wave upon a living system, the organism is considered as an elastic fluid-mechanical system, and the interaction of this system with the blast wave is discussed. By correlating specific mechanical fluid-dynamic processes to effects observed in experiments and accidental blast waves, this leads to a unified explanation and analysis of shock wave effects upon biological structures.

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