Author: Shunsuke TakagiPublisher:
ISBN:
Category : Numerical integration
Languages : en
Pages : 44
Book Description
The Viscoelastic Deflection of an Infinite Floating Ice Plate Subjected to a Circular Load
Author: Shunsuke TakagiPublisher:
ISBN:
Category : Numerical integration
Languages : en
Pages : 44
Book Description
Technical Report
Author: Cold Regions Research and Engineering Laboratory (U.S.)Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 300
Book Description
Creep Theory for a Floating Ice Sheet
Author: D. E. NevelPublisher:
ISBN:
Category : Ice
Languages : en
Pages : 122
Book Description
The problem investigated in this thesis is the prediction of the deflection and stresses in a floating ice sheet under loads which act over a long period of time. This problem is currently important for oil exploration offshore in the Arctic. A review of analytical methods for predicting the bearing capacity of an ice sheet is given. The problem is formulated by assuming the ice is isotropic with a constant Poisson's ratio. The shear modulus is assumed to obey a linear viscoelastic model. The specific model selected is a series of one Maxwell model and two Voigt models. One of the Voigt models has a negative spring constant which produces tertiary creep. The ice model exhibits a primary, secondary, and tertiary creep response, similar to that observed in uniaxial creep tests of ice. The material properties in the viscoelastic model may be a function of the vertical position in the ice sheet, but all these material properties must be proportional to the same function of position. Using the thin-plate theory for the floating ice sheet, the solution is obtained for the deflection and stresses in the ice sheet for primary, secondary, and tertiary creep regions. It is then shown that for a load that is not distributed over a large area, the time-dependent part of the deflection and stresses is relatively independent of the load's distribution. For the elastic case, the stress significantly depends upon the load's distribution. Results are given for the deflection and stresses as a function of time and distance from the load. The maximum deflection and stresses occur at the center of the load. At this point the deflection increases with time, while the stresses decrease; i.e., the stresses relax. (Author).
Technical Report
Author: Scientific and Technical Aerospace Reports
Author: Proceedings
Author: Guenther E. FrankensteinPublisher:
ISBN:
Category : Ice
Languages : en
Pages : 652
Book Description
Ice Technology
Author: T. K. S. MurthyPublisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 616
Book Description
Papers from the conference divided into three sections: ice environment, vessels and structures in ice, and, ice operations and ice management contributed by authors from ten countries, including China, Japan and USSR.
Guide to Technical Documents
Author: Naval Civil Engineering Laboratory (Port Hueneme, Calif.)Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 120
Book Description
Transactions of the Conference of Army Mathematicians
Author: Computer Simulation of Ice Breaking by Explosion and Impact
Author: Ahmad Mansour Adel MansourPublisher:
ISBN:
Category : Computer simulation
Languages : en
Pages : 680
Book Description