Document Detail


Physics of IED Blast Shock Tube Simulations for mTBI Research.
MedLine Citation:
PMID:  21960984     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Shock tube experiments and simulations are conducted with a spherical gelatin filled skull-brain surrogate, in order to study the mechanisms leading to blast induced mild traumatic brain injury. A shock tube including sensor system is optimized to simulate realistic improvised explosive device blast profiles obtained from full scale field tests. The response of the skull-brain surrogate is monitored using pressure and strain measurements. Fluid-structure interaction is modeled using a combination of computational fluid dynamics (CFD) simulations for the air blast, and a finite element model for the structural response. The results help to understand the physics of wave propagation, from air blast into the skull-brain. The presence of openings on the skull and its orientation does have a strong effect on the internal pressure. A parameter study reveals that when there is an opening in the skull, the skull gives little protection and the internal pressure is fairly independent on the skull stiffness; the gelatin shear stiffness has little effect on the internal pressure. Simulations show that the presence of pressure sensors in the gelatin hardly disturbs the pressure field.
Authors:
Jesus Mediavilla Varas; M Philippens; S R Meijer; A C van den Berg; P C Sibma; J L M J van Bree; D V W M de Vries
Related Documents :
1173344 - Effect of aerosolized dipalmitoyl lecithin on oxygen-toxic rat lungs.
23458594 - Patients with hypertensive crises who are admitted to a coronary care unit: clinical ch...
9192374 - Dynamic changes of cerebral oxygenation measured by brain tissue oxygen pressure and ne...
11977294 - The influence of glucose-insulin-kalium mixture (gik) on the selected parameters of aci...
11385824 - Effects of time pressure on mechanisms of speech production and self-monitoring.
17476324 - Patterns of loss and regeneration of tropical dry forest in madagascar: the social inst...
Publication Detail:
Type:  Journal Article     Date:  2011-09-19
Journal Detail:
Title:  Frontiers in neurology     Volume:  2     ISSN:  1664-2295     ISO Abbreviation:  Front Neurol     Publication Date:  2011  
Date Detail:
Created Date:  2011-09-30     Completed Date:  2011-11-10     Revised Date:  2013-08-13    
Medline Journal Info:
Nlm Unique ID:  101546899     Medline TA:  Front Neurol     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  58     Citation Subset:  -    
Affiliation:
Physical Protection and Survivability, Netherlands Organization for Applied Scientific Research Rijswijk, Netherlands.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Re-appreciating the why of cognition: 35 years after marr and poggio.
Next Document:  Clinical characterization of symptomatic microangiopathic brain lesions.