A Method to Calculate Pack Ice Driving Forces-Reference-Cited by-同舟云学术

A Method to Calculate Pack Ice Driving Forces

Published:1995-05-01 Issue:2 Volume:117 Page:145-150
ISSN:0892-7219
Container-title:Journal of Offshore Mechanics and Arctic Engineering
language:en
Short-container-title:

Author:

Evgin E.¹,Zhan C.¹,Frederking R. M. W.²

Affiliation:

1. Department of Civil Engineering, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5

2. Institute for Engineering in the Canadian Environment, National Research Council Canada, Ottawa, Ontario, Canada K1A OR6

Abstract

Abstract A method is proposed to calculate pack ice driving forces. In order to develop the method, stress distributions in a circular ice floe are calculated for various boundary loading conditions. The analysis is carried out using a special-purpose finite element program in which Sinha’s creep equation is used to model the behavior of ice. Charts relating pack ice driving forces to stresses in the ice floe are produced for both linear elastic and creep equations for ice behavior. The results indicate that, for a short period of loading time and at low stress levels, a linear elastic analysis can be used to calculate the pack ice driving forces. However, when the stress levels in the ice floe are high or the time span of load application is long, linear and nonlinear analyses produce much different values for pack ice driving forces.

Publisher

ASME International

Subject

Mechanical Engineering,Ocean Engineering

Link

https://asmedigitalcollection.asme.org/offshoremechanics/article-pdf/117/2/145/6829750/145_1.pdf

Reference11 articles.

1. Comfort, G., and Ritch, R., 1990, “Field Measurement of Pack Ice Stresses,” Proceedings of 9th International Conference of OMAE, ASME, Houston, TX, Vol. 4, pp. 177–181.

2. Comfort, G., Ritch, R., and Frederking, R. M. W., 1992, “Pack Ice Stress Measurements,” Proceedings of 11th International Conference of OMAE, ASME, Calgary, Alberta, Canada, Vol. 4, pp. 245–253.

3. Croasdale, K. R., 1984, “The Limit Driving Force Approach to Ice Loads,” Offshore Technology Conference, OTC Paper No. 4716, Houston, TX, pp. 57–64.

4. Croasdale, K. R., Comfort, G., and Graham, B. W., 1986, “A Pilot Project to Measure Pack Ice Driving Forces,” Contract Report submitted jointly by K. R. Croasdale and Associates and Arctec Canada Ltd. to the Institute of Ocean Sciences, Department of Fisheries and Oceans.

5. Croasdale, K. R., Comfort, G., Frederking, R. M. W., Graham, B. W., and Lewis, E. L., 1987, “A Pilot Experiment to Measure Pack Ice Driving Forces,” POAC, Fairbanks, Alaska, Vol. 3, pp. 381–395.