Creep of Floating Ice Sheets, Computer Calculations.

• Main Author: Garbaccio, D. H.
• Other Authors: SCIENCE ENGINEERING ASSOCIATES INC SAN MARINO CA
• Format: Text
• Language: English
• Published: 1968
• Subjects: Snow; Ice and Permafrost; Mechanics; (*SEA ICE; CREEP); MATHEMATICAL MODELS; DEFORMATION; VISCOELASTICITY; LOADS(FORCES); APPROXIMATION(MATHEMATICS); THICKNESS; BENDING; DEFLECTION; TABLES(DATA); COMPUTER ANALYSIS; Ice; Ice Sheet; permafrost; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/AD0849368; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0849368

Using a digital computer calculations were made of the deformations and bending moments in a floating ice sheet. The ice behavior was described by a linear viscoelastic model consisting of a Maxwell and a Voigt element in series. Loading with circular symmetry uniformly distributed was applied to a plate of finite thickness described by Reissner theory. The effect of superposed loads describing aircraft landing gear was considered. Calculations were also made for a linearized approximation to the problem of a thin sheet described by a power creep law. The method was only partially successful because the time span of applicability was short. (Author)