A STUDY OF FORCES CAUSED BY HEAD IMPACT ON AIRCREW PERSONNEL ARMOR UNDER SIMULATED CRASH CONDITIONS

Abstract

The results of a test program conducted to determine the magnitude, duration and shape of the force-time relationship resulting from head impact on personnel armor in a crash situation are presented. The program was divided into two major tasks. The first included modification of an armor front torso plate to carry the test instrumentation, modification of the anthropomorphic dummy to improve human simulation, and modification of the UH-1B/D armored crew seat to prevent failure. The second task involved the performance of 12 dynamic tests using two different types of aircrew personnel armor, both with and without a protective helmet. The test results indicated that significant head/ armor impact occurs most frequently in the chin area. Such contact produced impact pulses that were triangular in shape with peak loads ranging from 27 to 500 pounds and time duration ranging from 0.025 to 0.045 seconds. Loads on the chin of this magnitude and duration would not be expected to produce serious injury to a human being.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1968
Accession Number
AD0685838

Entities

People

  • Clifford I. Gatlin
  • Edward R. Barron
  • James L. Schamadan
  • Stanley D. Tanenholtz

Tags

Communities of Interest

  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Aircrafts
  • Armor Plate
  • Brain Injuries
  • Cameras
  • Dynamic Tests
  • Facial Bones
  • Flight Crews
  • Impact Loads
  • Instrumentation
  • Load Cells
  • Medical Personnel
  • Recording Systems
  • Tape Recorders
  • Tape Recording
  • Test And Evaluation
  • Test Facilities
  • Wounds And Injuries

Fields of Study

  • Engineering

Readers

  • Aerodynamics/Aeronautics.
  • Explosive Engineering.