| Autor: |
Bekker, Alexander T., Tsuprik, Vladimir G. |
| Zdroj: |
Proceedings of the International Offshore & Polar Engineering Conference; 2016, p1282-1289, 8p |
| Abstrakt: |
Introduction to the practice of new criteria designing of ice strength is a complex task, because one or another criterion of equivalence can be the basis for practical calculations of durability only subject to it empirical testing and the experiment results are reasonably close to the results of theoretical calculation. There are new results in determining of ice strength in massive (the method of logging tool tests) and in the mechanisms of destruction of ice field edge (consideration of vertical and horizontal radial and the circular cracks). Besides according to practical research in the field of mechanics of solid deformable body was defined that the energetical hypothesis of the strength is suitable for solution of ice fracture task. Subject to specific fracture energy of ice, the mathematical expressions for calculation of ice load are simplified, they become simple and clear. Investigations of the specific energy of mechanical fracture of ice via DBT method both in laboratory and in-situ were previously performed has shown the complete invariant nature of this criterion of ice strength, inclusive of high predictability and reproducing of results. Taking into account the laws of ice plate edges fracture, the methodological approach for calculation of ice load on vertical support of structure subject to specific energy of mechanical fracture of ice was considered herein. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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