Impact Analysis of the Skull-Brain System.
Abstract
A basic one-dimensional multi-plate impact computer program has been adapted to a model of a non-penetrating blow applied to a three-layered skull and brain system. Model layer thicknesses are equal to the average size of the corresponding anatomical head layers. Three models of the skull-brain have been studied: elastic tables and elastic diploe, elastic tables and elastic-plastic diploe, elastic tables and crushable diploe. All of these models are coupled to an inviscid, compressible fluid brain. The results showed that the energy transmitted to the brain layer with these three models was in the following decreasing order: elastic, elastic-plastic, and crushable hydrodynamic foam. Several special situations with enlarged diploe thickness and increased acoustic impedance mismatch resulted in changes in the energy transmitted to the brain. The existence of potential sites of coup, contrecoup, and intermediate coup was substantiated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 02, 1971
- Accession Number
- AD0733986
Entities
People
- Stephen L. Gordon
Organizations
- Naval Air Warfare Center Warminster