Relationship between blast overpressure and shell thickness on the fluid pressure on a cylinder under blast loading

Veera Selvan, Namas Chandra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The mechanics of blast wave-head interaction determines the magnitude of mechanical insult to the human head during a field explosion and subsequent brain injury. In this work, blast overpressure and shell thickness are related to fluid pressure based on experimental and computational methods. A fluid-filled cylinder is idealized as a two-dimensional analog of a skull-brain complex and is subjected to a Friedlander blast wave. Strain and pressure on the surface of the cylinder and pressure in the fluid (analogue of Intracranial pressure) are experimentally measured and compared with numerical simulation results. The validated numerical model shows that fluid pressure increases linearly with increase in reflected overpressures (ROP) for a given shell thickness. When the ROP is kept constant, fluid pressure increases linearly with the decrease in shell thickness. An equation is developed for predicting the fluid pressure for a given ROP and shell thickness.

Original languageEnglish (US)
Title of host publicationASME 2013 Summer Bioengineering Conference, SBC 2013
DOIs
StatePublished - Dec 1 2013
Externally publishedYes
EventASME 2013 Summer Bioengineering Conference, SBC 2013 - Sunriver, OR, United States
Duration: Jun 26 2013Jun 29 2013

Publication series

NameASME 2013 Summer Bioengineering Conference, SBC 2013
Volume1 B

Other

OtherASME 2013 Summer Bioengineering Conference, SBC 2013
CountryUnited States
CitySunriver, OR
Period6/26/136/29/13

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biotechnology
  • Mechanical Engineering

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