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Time and temperature sensitivity of the Hybrid III neck.

Publication ,  Journal Article
Schmidt, AL; Ortiz-Paparoni, MA; Shridharani, JK; Nightingale, RW; Bass, CR
Published in: Traffic injury prevention
January 2018

The Hybrid III (HIII) dummy is one of the most widely used anthropomorphic test devices (ATDs) in the world, and researchers have found a variety of uses for it outside of its original purpose as an automotive crash test dummy. These expanded roles have introduced situations outside the dummy's original design parameters, where a number of tests must be run in relatively rapid succession or where it may not be possible to control the temperature of the test environment.This study has 2 aims. The first is to determine how the duration of the time interval between tests affects the axial compression performance of the HIII neck. The second is to quantify the effect of temperature on the neck's compressive stiffness through a range of temperatures relevant to indoor or outdoor testing.To characterize the effects of different test conditions, a series of high-rate axial compressive tests was run on a 50th percentile male HIII neck component in a materials testing machine. Between-test recovery intervals were varied from 2 h to 1 min, and temperature conditions of 0, 12.5, 25, and 37.5 °C were tested.Though the duration of the recovery interval had little impact on the recorded force (less than 1%), the component did exhibit considerable strain creep over the course of the test. Temperature had a strong influence on the compressive stiffness of the component. Compared to the stiffness at 25 °C (near room temperature), the stiffness of the neck at 37.5 °C fell by 15%; at 0 °C, the stiffness more than doubled.This study demonstrates that though the duration of the recovery interval between tests has a small influence on neck stiffness, temperature effects should not be overlooked because they influence neck compressive stiffness considerably. The relationship between recorded force and temperature is well represented by exponential decay models. These findings highlight the importance of monitoring and controlling for temperature effects during all HIII testing.

Duke Scholars

Published In

Traffic injury prevention

DOI

EISSN

1538-957X

ISSN

1538-9588

Publication Date

January 2018

Volume

19

Issue

6

Start / End Page

657 / 663

Related Subject Headings

  • Time Factors
  • Temperature
  • Neck
  • Manikins
  • Logistics & Transportation
  • Equipment Design
  • Accidents, Traffic
  • 4206 Public health
  • 1701 Psychology
  • 1117 Public Health and Health Services
 

Citation

APA
Chicago
ICMJE
MLA
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Schmidt, A. L., Ortiz-Paparoni, M. A., Shridharani, J. K., Nightingale, R. W., & Bass, C. R. (2018). Time and temperature sensitivity of the Hybrid III neck. Traffic Injury Prevention, 19(6), 657–663. https://doi.org/10.1080/15389588.2018.1480832
Schmidt, Allison L., Maria A. Ortiz-Paparoni, Jay K. Shridharani, Roger W. Nightingale, and Cameron R. Bass. “Time and temperature sensitivity of the Hybrid III neck.Traffic Injury Prevention 19, no. 6 (January 2018): 657–63. https://doi.org/10.1080/15389588.2018.1480832.
Schmidt AL, Ortiz-Paparoni MA, Shridharani JK, Nightingale RW, Bass CR. Time and temperature sensitivity of the Hybrid III neck. Traffic injury prevention. 2018 Jan;19(6):657–63.
Schmidt, Allison L., et al. “Time and temperature sensitivity of the Hybrid III neck.Traffic Injury Prevention, vol. 19, no. 6, Jan. 2018, pp. 657–63. Epmc, doi:10.1080/15389588.2018.1480832.
Schmidt AL, Ortiz-Paparoni MA, Shridharani JK, Nightingale RW, Bass CR. Time and temperature sensitivity of the Hybrid III neck. Traffic injury prevention. 2018 Jan;19(6):657–663.

Published In

Traffic injury prevention

DOI

EISSN

1538-957X

ISSN

1538-9588

Publication Date

January 2018

Volume

19

Issue

6

Start / End Page

657 / 663

Related Subject Headings

  • Time Factors
  • Temperature
  • Neck
  • Manikins
  • Logistics & Transportation
  • Equipment Design
  • Accidents, Traffic
  • 4206 Public health
  • 1701 Psychology
  • 1117 Public Health and Health Services