Accession Number : AD0768279

Title :   Ice-Engineering-Summary of Elastic Properties Research and Introduction to Viscoelastic and Nonlinear Analysis of Saline Ice.

Descriptive Note : Technical rept. Mar 71-Jun 72,

Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF

Personal Author(s) : Katona,M. G. ; Vaudrey,K. D.

Report Date : AUG 1973

Pagination or Media Count : 72

Abstract : Increasing operational use od ice areas in polar regions has heightened the requirement for improved knowledge and techniques to analyze the behavior of sea ice. Previous studies on elastic behavior are reviewed with emphasis placed on plate analysis. Classical plate theory and the finite element method are compared in analyzing ice plates, with special attention given to sea-ice airfields. Since elastic analysis is not totally representative of actual ice behavior, a general formulation is presented which gives the assumptions and procedures for both viscoelastic and nonlinear domains of sea-ice behavior. A laboratory program is being initiated to determine material properties that are necessary to extend sea-ice analysis into the inelastic range. (Author)

Descriptors :   (*SEA ICE, MECHANICAL PROPERTIES), (*LANDING FIELDS, SEA ICE), ELASTIC PROPERTIES, COMPRESSIVE PROPERTIES, LOADS(FORCES), TENSILE PROPERTIES, FLEXURAL STRENGTH, CREEP, STRAIN(MECHANICS), SALINITY, TEMPERATURE

Subject Categories : Terminal Flight Facilities
      Physical and Dynamic Oceanography
      Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE