Abstract
The global ice load acting on a wide offshore structure
depends on the spatial correlation of the local Ice
forces. To account for the correlation effects, a
nonlinear model is developed for the loading phase of the
dynamic ice-structure interaction process. The model is
based on a series of laboratory tests where an indentor
was pushed against a 100 mm thick sheet of freshwater
ice. The analysis of experimental data shows that the
strain-softening feature of the loading phase can be
represented using a polynomial of the third order. The
nominal compressive strength seems to increase slightly
with the loading rate. Furthermore, an effective
compressive modulus of the near field area at the ice
edge exhibits a clear increase with an increase of the
loading rate. The new loading model is incorporated in a
numerical model for dynamic soil-structure-ice
interaction.
| Original language | English |
|---|---|
| Title of host publication | The proceedings of the Sixth (1996) International Offshore and Polar Engineering Conference |
| Editors | Jin S. Chung |
| Place of Publication | Golden |
| Publisher | International Society of Offshore and Polar Engineers ISOPE |
| Pages | 349-353 |
| Volume | 2 |
| ISBN (Print) | 978-1-880653-24-1 |
| Publication status | Published - 1996 |
| MoE publication type | A4 Article in a conference publication |
| Event | 6th International Offshore and Polar Engineering Conference (ISOPE) - Los Angeles, United States Duration: 26 May 1996 → 31 May 1996 |
Conference
| Conference | 6th International Offshore and Polar Engineering Conference (ISOPE) |
|---|---|
| Country/Territory | United States |
| City | Los Angeles |
| Period | 26/05/96 → 31/05/96 |
Keywords
- offshore structures
- ice forces
- numerical modelling
- ice failure
- loading rate
- nonlinear phenomena