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An Evaluation of TTI and ASA in SID Side Impact Sled Tests
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Sector:
Event:
Stapp Car Crash Conference
Language:
English
Abstract
Thirty-seven SID side impact sled tests were performed using a rigid wall and a padded wall with fourteen different padding configurations. The Thoracic Trauma Index (TTI) and Average Spine Acceleration (ASA) were measured in each test. TTI and ASA were evaluated in terms of their ability to predict injury in identical cadaver tests and in terms of their ability to predict the harm or benefit of padding of different crush strengths. SID ASA predicted the injury seen in WSU-CDC cadaver tests better than SID TTI. SID ASA predicted that padding of greater than 20 psi crush strength is harmful (ASA > 40 g's). SID TTI predicted that padding of greater than 20 psi crush strength is beneficial (TTI < 85 g's). SID TTI predicts the benefit of lower impact velocity. However, SID ASA appears more useful in assessing the harm or benefit of door padding or air bags.
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Authors
Citation
Cavanaugh, J., Walilko, T., Walbridge, A., Huang, Y. et al., "An Evaluation of TTI and ASA in SID Side Impact Sled Tests," SAE Technical Paper 942225, 1994, https://doi.org/10.4271/942225.Also In
References
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