M. Tamagawa et T. Akamatsu, EFFECTS OF SHOCK-WAVES ON LIVING TISSUES (NUMERICAL-ANALYSIS OF A PROPAGATING PRESSURE WAVE TOWARD LIVING TISSUE), JSME international journal. Series B, fluids and thermal engineering, 39(4), 1996, pp. 714-720
This paper describes pressure wave analysis in order to examine the ef
fects of shock waves on living tissues. From the comparison of displac
ements of living tissue models by FEM with that obtained by experiment
s, dynamic properties of living tissue (rat's kidney) are determined.
Using these properties of the living tissues in shock compression (sol
id-state equation), the flow fields in two layers that consist of air
and the living tissue, and in three layers that consist of air, water,
and living tissue are numerically obtained. It is found that the inci
dent time derivative of pressure in the living tissue is smaller than
that of pressure in air and water. Hence, the effect of the living tis
sue depends on the relaxation of pressure waves and duration of exposu
re.