Review of Department of Defense Test Protocols for Combat Helmets (2014) / Chapter Skim
Currently Skimming:
3 Threats, Head Injuries, and Test Methodologies
3 Threats, Head Injuries, and Test Methodologies
Pages 15-24
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 15... ...
• Non-battle causes, including blunt traumatic injuries, produced nearly 50 percent of the hospitalizations for traumatic brain injury in Iraq/Afghanistan. 3.2 HISTORICAL PATTERNS OF TREATABLE • There is no biomechanical link in the current test INJURIES methodology between the backface deformation A number of studies have examined military wound assessment and head injuries from behind-helmet ing of U.S.
|
From page 16... ...
For example, one of the studies cited there reported a 4-month period of casualties received at Walter Reed Army Medical Cen -- In OEF/OIF, the proportion of blast-associated ter, when they cared for 119 patients with 184 injuries. There were some head injuries (attributed to blast fragments)
|
From page 17... ...
The Department of Defense should investigate the possibility of increasing blunt impact protecTotal 6,609 100 tion of the combat helmet to reduce head injuries. NOTE: Based on injuries/treatments from hospitalizations, including personnel who died of wounds.
|
From page 18... ...
hospitalizations by source for battle injuries categorized by regions in Operation Enduring Force/Operation Iraqi Freedom.
|
From page 19... ...
. For exposure over a 10-year allow resources to be directed at a wider diversity of realistic career, airborne personnel may have career head injury risk ballistic threats, including larger mass artillery fragments, ranging from 10 percent for 4 jumps per year to 34 percent bullets other than the 9-mm, and improvised explosive device fragments.
|
From page 20... ...
computational models suggest that the ACH helmet does not exacerbate blast exposure. 3.4 ADVANCED COMBAT HELMET TEST METHODOLOGY AND LINKS TO BIOMECHANICS This section outlines the typical characteristics of each injury type and elucidates the biomechanical basis for penetration and behind-armor blunt trauma assessments.
|
From page 21... ...
. injury in human cadaveric heads during ballistic loading of Because neck motion following ballistic impact follows a protective helmet.
|
From page 22... ...
Widespread use of protective helmets has reduced severity and frequency of head injuries. Many of the improvements in helmet technology have arisen from standardized test methodologies based on blunt impact injury criteria.
|
From page 23... ...
. For severe TBI combat wounds in operation Iraqi freedom and operation enduring freefrom blast exposure, there may be clear neurological changes, dom: Orthopaedic burden of disease.
|
From page 24... ...
2012. Brain injury risk from primary blast.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.