Strength Studies Of Sea Ice
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Strength Studies Of Sea Ice
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Author : Theodore R. Butkovich
language : en
Publisher:
Release Date : 1956
Strength Studies Of Sea Ice written by Theodore R. Butkovich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1956 with Sea ice categories.
Strength Studies On Antarctic Sea Ice
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Author : George Hendrickson
language : en
Publisher:
Release Date : 1965
Strength Studies On Antarctic Sea Ice written by George Hendrickson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Sea ice categories.
The Mechanical Properties Of Sea Ice
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Author : W. F. Weeks
language : en
Publisher:
Release Date : 1967
The Mechanical Properties Of Sea Ice written by W. F. Weeks and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Ice mechanics categories.
The review discusses the state of thinking of each of the main national groups investigating sea ice and gives an overall appraisal of the field as a whole. Emphasis is placed on (1) the physical basis for interpreting sea ice strength (phase relations, air volume, and structural considerations), (2) theoretical considerations (strength models, air bubbles and salt reinforcement, and interrelations between growth conditions and strength), (3) experimental results (tensile, flexural, shear, and compressive strength, elastic modulus, shear modulus and Poisson's ratio, time dependent effects, and creep), and (4) plate characteristics. The paper includes a review of problems in sea ice investigations, relates the chemical, crystallographic, mechanical, and physical aspects involved, and concludes by showing how to utilize this knowledge to solve practical problems. (Author).
Strength Studies Of Sea Ice
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Author : R. A. Paige
language : en
Publisher:
Release Date : 1967
Strength Studies Of Sea Ice written by R. A. Paige and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with categories.
A quick, accurate method of estimating the load-carrying capacity of sea ice subjected to rapidly applied loads such as those imposed by moving aircraft and surface vehicles is needed to promote the safe and efficient use of sea ice by these forms of transportation. Tensile strength is one of the critical parameters in determining load-carrying capacity under these conditions which produce an elastic response in the sea ice. An approximate measurement of this strength can be determined by the ring-tensile-strength test of small specimens; however, temperature, salinity, crystallography, and load rate affect the results of this test. Ring tensile strength is a function of loading crosshead speed and decreases as much as 91% from crosshead speeds 2.54 to 25.4 cm (1 to 10 inches)/min. A minimum crosshead speed of 50.8 cm (20 inches)/min is required to achieve true elastic failure and is approximately 30 times greater than the load rate of 0.5 kg/sq. cm/sec (7.11 psi/sec) commonly used for sea-ice strength tests. Apparatus used in the past have not tested specimens at a high enough load rate to assure elastic failure. In addition to low load rates used in the past, processing sea-ice specimens has also been too slow to minimize detrimental brine drainage and temperature changes to non-in-situ conditions. Properly designed test apparatus is required to rapidly collect and process sea-ice specimens and to test them at a crosshead speed of at least 50.8 cm/min. (Author).
Composition Of Sea Ice And Its Tensile Strength
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Author : U.S. Army Snow, Ice, and Permafrost Research Establishment
language : en
Publisher:
Release Date : 1958
Composition Of Sea Ice And Its Tensile Strength written by U.S. Army Snow, Ice, and Permafrost Research Establishment and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with categories.
Growth Structure And Strength Of Sea Ice
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Author : A. Assur
language : en
Publisher:
Release Date : 1964
Growth Structure And Strength Of Sea Ice written by A. Assur and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Ice crystals categories.
Dynamic Young S Modulus And Flexural Strength Of Sea Ice
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Author : Guenther E. Frankenstein
language : en
Publisher:
Release Date : 1970
Dynamic Young S Modulus And Flexural Strength Of Sea Ice written by Guenther E. Frankenstein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Sea ice categories.
The report describes the results of tests made to determine the dynamic Young's modulus E of young sea ice. The ice samples were mainly parallelepipeds but a few were 7.62-cm-diam cores. The longitudinal wave velocity was determined by measuring the time required for a sound wave to travel the length of the sample. The flexural strength of the ice was determined by conducting a number of simple beam tests. The average value for the flexural strength was 11.3 kg/sq cm. (Author).
Composition Of Sea Ice And Its Tensile Strength
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Author : A. Assur
language : en
Publisher:
Release Date : 1960
Composition Of Sea Ice And Its Tensile Strength written by A. Assur and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with Salt categories.
Part of the salts contained in sea water are trapped in sea ice upon freezing. They form liquid and solid inclusions in a systematic pattern. The amount depends upon temperature and salinity. A detailed table of phase relations is given and a general theory is derived to show how the internal cavities may affect the strength of sea ice. The general theory leads to specific models. The principle of ring tensile strength tests is explained and a series for evaluation is given. Test data lead to a substantiation of theoretical principles and to an illustration of several hypotheses concerning the effect of solid salt inclusions upon strength. Observed sea ice phenomena are explained on the basis of internal structure. (Author).
Growth Structure And Strength Of Sea Ice
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Author : Cold Regions Research and Engineering Laboratory (U.S.)
language : en
Publisher:
Release Date : 1966
Growth Structure And Strength Of Sea Ice written by Cold Regions Research and Engineering Laboratory (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with categories.
Research In Sea Ice Mechanics
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Author : National Research Council (U.S.). Panel on Sea Ice Mechanics
language : en
Publisher:
Release Date : 1981
Research In Sea Ice Mechanics written by National Research Council (U.S.). Panel on Sea Ice Mechanics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Ice mechanics categories.
Panel appointed in 1979 to investigate available information and research needs in field of sea ice mechanics, referring especially to engineering activities in and under ice of polar oceans.
