Signatur:
ZSP-201-79/29
In:
CRREL Report, 79-29
Beschreibung / Inhaltsverzeichnis:
An analytical study of the propagation of shock waves in snow was carried out to evaluate the response of medium density snow to high rates of loading. One solution was developed for steady shock waves; this resulted in calculation of pressure jump, density jump and stress wave speed. Correlation with available experimental data was found to be good. Nonsteady shock waves were also considered in order to evaluate wave attenuation rates in snow. Very few data were available to compare with the analytical results, so no definite conclusions on the part of the study could be made. The results show, however, that shock waves that produce plastic deformation attenuate at extremely high rates and that differences in pressure between two waves are quickly eliminated within a short distance. Calculations were also made to evaluate the effect of wave frequency on attenuation rates. The results show that, for plastic waves, frequency is not a predominant factor for determining attenuation rates.
Materialart:
Schriftenreihen ausleihbar
Seiten:
v, 14 Seiten
,
Illustrationen
Serie:
CRREL Report 79-29
URL:
https://cdm16021.contentdm.oclc.org/digital/collection/p266001coll1/id/6071
URL:
https://hdl.handle.net/11681/9189
Sprache:
Englisch
Anmerkung:
CONTENTS
Abstract
Preface
Nomenclature
I. Introduction
II. A constitutive law for snow and balance principles
III. Compatibility laws and jump equations for stress waves
IV. Steady shock waves in snow
V. Comparison of steady-wave theory with experimental results
VI. A numerical solution to the nonsteady wave problem
VII. Jump equations for nonsteady shock waves
VIII. Reduced jump equations
Discussion and conclusions
Literature cited
Standort:
AWI Archiv
Zweigbibliothek:
AWI Bibliothek
Permalink
