Signatur:
ZSP-201-85/16
In:
CRREL Report, 85-16
Beschreibung / Inhaltsverzeichnis:
This report presents the results of the second phase of a test program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. In Phase 2, 62 constant-strain-rate uniaxial compression tests were performed on horizontal and vertical ice samples from multi-year pressure ridges to examine the effect of sample orientation on ice strength. Also conducted were 36 constant-strain-rate tension tests, 55 conventional triaxial tests and 35 constant-load compression tests on multi-year pressure ridge samples to provide data for developing ice yield criteria and constitutive laws. Data are presented on the strength, failure strain and modulus of multi-year sea ice under different loading conditions. The effects of ice temperature, porosity, structure, strain rate, confining pressure and sample orientation on the mechanical properties of multi-year sea ice are examined.
Materialart:
Schriftenreihen ausleihbar
Seiten:
vi, 89 Seiten
,
Illustrationen
Serie:
CRREL Report 85-16
URL:
https://apps.dtic.mil/dtic/tr/fulltext/u2/a166333.pdf
URL:
https://hdl.handle.net/11681/9414
Sprache:
Englisch
Anmerkung:
CONTENTS
Abstract
Preface
Introduction
Field sampling program
Site selection and description
Coring procedures
Core logging procedures
Shipping and storage of ice samples
Ice description
Salinity and density
Structure
Constant-strain-rate compression tests
Test variables
Uniaxial compressive strength
Strength and structure
Strength and porosity
Residual compressive strength
Failure strain
Initial tangent modulus
Constant-strain-rate uniaxial tension tests
Test variables
Uniaxial tensile strength
Failure strains
Initial tangent modulus
Constant-strain-rate triaxial tests
Equipment
Test variables
Synthane end caps
Triaxial strength
Failure strains
Initial tangent modulus
Effect of sinthane end caps on results
Constant-load compression tests
Test variables
Test results
Conclusions
Literature cited
Appendix A: Ice structure profile of ridge C core
Appendix H: Test data
Appendix C: Static determination of Young's modulus in sea ice
Standort:
AWI Archiv
Zweigbibliothek:
AWI Bibliothek
