Modeling of the Non-Auditory Response to Blast Overpressure. Design and Field Test of a Blast Overpressure Test Module
Abstract
It has been conclusively determined by field testing, in which the thorax and lung dynamics are directly measured, and by computational simulation, that it is the surface loading on the body which is the direct coupling between the blast field and the biophysical response. The surface loading, expressed as a pressure-time history, differs significantly from the so-called free-field pressure variation that has been widely reported. The two differ both because of reflection, whose effects have been studied under simplified conditions, and because of the geometric effects of the body's shape, orientation to the blast, and relation to surrounding objects, including the ground plane. This latter difference has never been adequately described. If animal exposures to blast are to be properly interpreted, the pressure loading on the body surface must be measured directly. Attempts to place pressure gauges on the animal are extremely difficult and are not practical in routine studies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1990
- Accession Number
- ADA223665
Entities
People
- Edward J. Vasel
- James H. Stuhmiller
- James H.y. Yu