Deformation Behavior of Liquid-Packaging Bags under Drop Impact

Abstract

The deformation behavior of liquid-packaging bags containing liquid subjected to drop impact was observed using a high-speed camera and the relationship between the behavior and the pressure of the bags measured using pressure sensors was investigated. Results indicated that the liquid-packaging bags have characteristic constriction and bulging, whose degrees vary with time, and the variation in the shape of the bags can be explained using the variation in the pressure of the bags estimated on the basis of the water hammer theory.