UID:
kobvindex_GFZ20201202140405
Umfang:
iv, 6, A4 Seiten
,
Illustrationen
Serie:
Research report / Cold Regions Research and Engineering Laboratory 61
Inhalt:
Summary: The results of experiments on the bonding of polished and microtomed surfaces of bubble-free ice samples at -5°C with various loads are reported. Only a small part of the available surface area appeared to be bonded, this area increasing with the bonding load. Surfaces apposed immediately after preparation showed an appreciably higher force of separation than those joined after a time interval. The force of separation for surfaces placed together at 0% relative humidity was higher than that at 100% relative humidity. A simplified theory of bonding of irregular ice surfaces is formulated in the appendix. The calculations are based on the assumption of a distribution of small ice cylinders of equal cross sections but different heights located on a non-deformable plate. The cylinders are deformed by a constant force which is applied by another completely non-deformable flat plate. The deformation as a function of force and time and the force of separation as a function of load are derived, assuming that the distribution of heights is given by a box distribution (i.e., frequency of heights is constant).
Anmerkung:
CONTENTS
Preface
Summary
Introduction
Materials
Apparatus and procedure
Results
Discussion
References
Appendix: Compression of an assembly of cylinders
In:
Research report / Cold Regions Research and Engineering Laboratory, 61
Sprache:
Englisch
Schlagwort(e):
Forschungsbericht
URL:
https://hdl.handle.net/11681/2700
