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Research Papers

Comparison of Hybrid-III and Postmortem Human Surrogate Response to Simulated Underbody Blast Loading

[+] Author and Article Information
Ann Marie Bailey

University of Virginia,
4040 Lewis and Clark Drive,
Charlottesville, VA 22911
e-mail: amb9um@virginia.edu

John J. Christopher

University of Virginia,
4040 Lewis and Clark Drive,
Charlottesville, VA 22911
e-mail: jjc2c@virginia.edu

Robert S. Salzar

University of Virginia,
4040 Lewis and Clark Drive,
Charlottesville, VA 22911
e-mail: rss2t@virginia.edu

Frederick Brozoski

United States Army Aeromedical Research Lab,
Fort Rucker, AL 36362
e-mail: frederick.brozoski@us.army.mil

Manuscript received August 6, 2014; final manuscript received February 24, 2015; published online March 18, 2015. Assoc. Editor: Brian D. Stemper. This material is declared a work of the U.S. Government and is not subject to copyright protection in the United States. Approved for public release; distribution is unlimited.

J Biomech Eng 137(5), 051009 (May 01, 2015) (10 pages) Paper No: BIO-14-1368; doi: 10.1115/1.4029981 History: Received August 06, 2014; Revised February 24, 2015; Online March 18, 2015

Response of the human body to high-rate vertical loading, such as military vehicle underbody blast (UBB), is not well understood because of the chaotic nature of such events. The purpose of this research was to compare the response of postmortem human surrogates (PMHS) and the Hybrid-III anthropomorphic test device (ATD) to simulated UBB loading ranging from 100 to 860 g seat and floor acceleration. Data from 13 whole body PMHS tests were used to create response corridors for vertical loading conditions for the pelvis, T1, head, femur, and tibia; these responses were compared to Hybrid-III responses under matched loading conditions.

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Figures

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Fig. 1

Specimen orientation and coordinate system diagram

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Fig. 2

Sample seat and floor SAE-z accelerations (from test 1.5)

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Fig. 3

Diagram of PMHS instrumentation locations

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Fig. 4

List of tests used to develop corridors by body region. Response corridor for PMHS SAE-x femur acceleration (a) and Hybrid-III femur SAE-x force (b) for low and high level tests.

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Fig. 5

Response corridors for PMHS and ATD pelvis, T1, and head, and tibia acceleration in the SAE-z direction from low and high level tests. (a) Pelvis Az RC for low conditions, (b) head Ax RC for high conditions, (c) T1 Az RC for low conditions, (d) T1 Az RC for high conditions, (e) head Az RC for low conditions, (f) head Az RC for high conditions, (g) tibia Az RC for low conditions, and (h) tibia Az RC for high conditions.

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Fig. 6

Hybrid-III SAE-z tibia acceleration correction

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Fig. 7

PMHS (a) and Hybrid-III (b) SAE-z acceleration responses from tests 1.3 and 2.3

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