Ice Engineering: Viscoelastic Finite Element Formulation.

• Main Author: Katona,Michael G.
• Other Authors: NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF
• Format: Text
• Language: English
• Published: 1974
• Subjects: Snow; Ice and Permafrost; Civil Engineering; *Sea ice; Computer programming; Viscoelasticity; Loads(Forces); Stress strain relations; Landing fields; Boundary value problems; Computerized simulation; Finite element analysis; Ice engineering; Ice; Ice Shelf; permafrost; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/AD0774482; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0774482

The most efficient design, construction, and use of polar-ice-shelf facilities for operation and parking of aircraft, cargo storage, and other purposes depends on a thorough and correct engineering analysis of the structural integrity of the sea-ice layer. The viscoelastic finite element analysis technique and computer program developed in this investigation have proven to be an accurate, versatile, and powerful tool for solving a wide class of boundary value problems including ar-bitrary axisymmetric and plane strain geometries subjected to quasi-static, symmetric loading, and layered half-space systems resting on a fluid foundation with arbitrary surface loading. The viscoelastic model includes independent bulk and shear relaxation functions charac-terized by exponential series. The computer program was exercised on several sample problems and compares favorably with classical solutions and experimental data. (Author, modified-PL)