Revised Aircraft Load Curves and Vehicle Ice-Thickness Tables for Annual Ice Sheet Operations Near McMurdo, Antarctica.

Updated aircraft load curves and vehicle ice-thickness tables are presented for operations on the sea-ice sheet near McMurdo Station, Antarctica. First, material property research on sea-ice is reviewed to demonstrate the current knowledge of ice-sheet bearing strength. Then the elastic finite eleme...

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Bibliographic Details
Main Author: Vaudrey,K. D.
Other Authors: CIVIL ENGINEERING LAB (NAVY) PORT HUENEME CALIF
Format: Text
Language:English
Published: 1976
Subjects:
Aircraft
Snow
Ice and Permafrost
Numerical Mathematics
Mechanics
*AIRCRAFT
*FINITE ELEMENT ANALYSIS
*STRUCTURAL ANALYSIS
*SEA ICE
*CURVE FITTING
THICKNESS
MILITARY VEHICLES
MODULUS OF ELASTICITY
ICE
FLEXURAL STRENGTH
TABLES(DATA)
NAVAL EQUIPMENT
Heavy equipment
McMurdo Station
Antarc*
Antarctica
Ice
Ice Sheet
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA024051
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA024051
Description
Summary:Updated aircraft load curves and vehicle ice-thickness tables are presented for operations on the sea-ice sheet near McMurdo Station, Antarctica. First, material property research on sea-ice is reviewed to demonstrate the current knowledge of ice-sheet bearing strength. Then the elastic finite element computer code is discussed: how it models an ice sheet and accepts material property and loading condition parameters. The load curves and ice-thickness tables give minimum ice-sheet thicknesses for specified aircraft and vehicle weights over four seasonal periods during the operating season. In addition to the tables and curves, operational field procedures are included to provide guidance for both day-to-day monitoring of the ice sheet and visual observation of ice-sheet behavior. (Author)

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