A Literature Survey of Airborne Vehicles Impacting with Water and Soil; Head Injury Criteria and Severity Index Development of Computer Program Krash

Wittlin, G.; Gamon, M. A.

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A Literature Survey of Airborne Vehicles Impacting with Water and Soil; Head Injury Criteria and Severity Index Development of Computer Program Krash

1992-07-01
By Wittlin, G. ; Gamon, M. A.

File Language:

English

Details

Creators:

Wittlin, G. ; Gamon, M. A.
Corporate Creators:

Lockheed Aeronautical Systems Company
Corporate Contributors:

United States. Department of Transportation. Federal Aviation Administration. Technical Center
Subject/TRT Terms:
Publication/ Report Number:

DOT/FAA/CT-90/24
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Corporate Publisher:

United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
Abstract:

This report describes a two part study to identify KRASH code requirements for analyses of: Structure/terrain interaction; Head/structure Interaction. The literature survey of water and soil impact methodology is presented. The reports are reviewed with regard to incorporation of code modifications to program KRASH. A total of 28 water impact reports were reviewed. In the area of water impact, the representation of a transport airplane lower fuselage as a wedge-shaped planing surfaced is discussed. A relationship is developed between vertical force and depth of fuselage penetration. Forty soil impact related reports were reviewed in the survey. For soil impact the two potential approaches described include: Empirical definition of soil pressure versus depth. Theoretical definition of soil as a viscoelastic medium. For the head/structure impact assessment, the Head Injury Criteria (HIC) and Severity Index (SI) calculations are added to program KRASH.
Format:

PDF
Funding:

DTFA03-84-C-00004
Download URL:

https://rosap.ntl.bts.gov/view/dot/93211/dot_93211_DS1.pdf
File Type:

[PDF - 2.09 MB]
Collection(s):

FAA William J. Hughes Technical Center for Advanced Aerospace
Main Document Checksum:

urn:sha-512:107c36bd7f10d708eab574c4e0e29e04d7cbd1cea0f01df55411fbcf4205a016562e44cbb403720d186a12d108df2ced5b52d52ba9490f63bfe34c7f23afc6f9

File Language:

English

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