Modeling for Military Operational Medicine Scientific and Technical Objectives

Abstract

In FY04, we continued the effort to produce a methodology that estimates the probability/severity of specific injuries from nonpenetrating, body armor impact and that can indicate the effects of body differences. We've made significant progress on the main tasks and successfully accomplished all the milestones in FY04. In summary, (1) the ATM was refined to provide more and better behind body armor impact force and motion responses; the ATM response was calibrated through laboratory drop and impact tests and validated against animal and human responses; (2) additional live fire tests were conducted to obtain better impact response measurements; clay tests were also conducted to compare the impact characteristics used in animal studies with the real behind armor impacts; (3) an addition of 9 animal tests were conducted successfully in FY04; mechanical response, anatomical, and pathological data were collected in each test; physiological measurements of SpO2, HR, were added in recent tests; pressures inside lungs were also measured in a few tests where pressure catheters were inserted into the lungs; (4) subject-specific thoracic FE models of swine subjects were refined and validated against the response measurements; excellent agreements with measured motion, impact force, and pressure wave inside lungs were obtained; (5) thoracic FE model of human were developed; (6) rib fracture and lung injury correlations were developed and validation with animal test data showed good agreement; (7) developed a numerical model of ATM which interprets the ATM measurements and determines the impact parameters to use in FE simulations; this completes the whole process of live test measurements, FE calculation of tissue responses, and BA trauma assessment.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2004
Accession Number
ADA430253

Entities

People

  • Adam Fournier
  • Eugene Niu
  • James H. Stuhmiller
  • Weixin Shen

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Agreements
  • Armor
  • Body Armor
  • Catheters
  • Drop Tests
  • Films
  • Impact Tests
  • Laboratory Animals
  • Materials
  • Measurement
  • Simulations
  • Test And Evaluation
  • Test Methods
  • Thoracic Injuries
  • Tissues
  • Validation
  • Wounds And Injuries

Readers

  • Cardiovascular Physiology
  • Computational Modeling and Simulation
  • Explosive Engineering.