Holographic Technique for Measurements of Strain
An experimental program was carried out to see if holographic interferometry could be used to determine Young's modulus and Poisson's ratio of ice using the ring test. Spurious rigid body deflections of up to 0.5 microinch were found when the sample was compressed. These motions are of suc...
Main Authors: | , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
1975
|
Subjects: | |
Online Access: | http://www.dtic.mil/docs/citations/ADA011247 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA011247 |
id |
ftdtic:ADA011247 |
---|---|
record_format |
openpolar |
spelling |
ftdtic:ADA011247 2023-05-15T16:37:07+02:00 Holographic Technique for Measurements of Strain Berger,R. H. Marshall,S. J. Munis,R. H. Fourney,M. E. COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H 1975-05 text/html http://www.dtic.mil/docs/citations/ADA011247 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA011247 en eng http://www.dtic.mil/docs/citations/ADA011247 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Test Facilities Equipment and Methods *STRAIN(MECHANICS) *HOLOGRAPHY *SEA ICE MEASUREMENT DEFORMATION MODULUS OF ELASTICITY TEST METHODS INTERFEROMETRY POISSON RATIO Text 1975 ftdtic 2016-02-20T09:48:18Z An experimental program was carried out to see if holographic interferometry could be used to determine Young's modulus and Poisson's ratio of ice using the ring test. Spurious rigid body deflections of up to 0.5 microinch were found when the sample was compressed. These motions are of such magnitude that they will affect the accuracy of the bore gauge measurements of ice strength. The technique most suited to measurements of the deformation of the ice ring is speckle interferometry. This technique is most sensitive to motions of the magnitude found when using the ring test on ice and it allows measurement of motion in each of the three orthogonal directions separately so that Young's modulus and Poisson's ratio may be obtained easily. Text Ice permafrost Sea ice Defense Technical Information Center: DTIC Technical Reports database |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Test Facilities Equipment and Methods *STRAIN(MECHANICS) *HOLOGRAPHY *SEA ICE MEASUREMENT DEFORMATION MODULUS OF ELASTICITY TEST METHODS INTERFEROMETRY POISSON RATIO |
spellingShingle |
Snow Ice and Permafrost Test Facilities Equipment and Methods *STRAIN(MECHANICS) *HOLOGRAPHY *SEA ICE MEASUREMENT DEFORMATION MODULUS OF ELASTICITY TEST METHODS INTERFEROMETRY POISSON RATIO Berger,R. H. Marshall,S. J. Munis,R. H. Fourney,M. E. Holographic Technique for Measurements of Strain |
topic_facet |
Snow Ice and Permafrost Test Facilities Equipment and Methods *STRAIN(MECHANICS) *HOLOGRAPHY *SEA ICE MEASUREMENT DEFORMATION MODULUS OF ELASTICITY TEST METHODS INTERFEROMETRY POISSON RATIO |
description |
An experimental program was carried out to see if holographic interferometry could be used to determine Young's modulus and Poisson's ratio of ice using the ring test. Spurious rigid body deflections of up to 0.5 microinch were found when the sample was compressed. These motions are of such magnitude that they will affect the accuracy of the bore gauge measurements of ice strength. The technique most suited to measurements of the deformation of the ice ring is speckle interferometry. This technique is most sensitive to motions of the magnitude found when using the ring test on ice and it allows measurement of motion in each of the three orthogonal directions separately so that Young's modulus and Poisson's ratio may be obtained easily. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H |
format |
Text |
author |
Berger,R. H. Marshall,S. J. Munis,R. H. Fourney,M. E. |
author_facet |
Berger,R. H. Marshall,S. J. Munis,R. H. Fourney,M. E. |
author_sort |
Berger,R. H. |
title |
Holographic Technique for Measurements of Strain |
title_short |
Holographic Technique for Measurements of Strain |
title_full |
Holographic Technique for Measurements of Strain |
title_fullStr |
Holographic Technique for Measurements of Strain |
title_full_unstemmed |
Holographic Technique for Measurements of Strain |
title_sort |
holographic technique for measurements of strain |
publishDate |
1975 |
url |
http://www.dtic.mil/docs/citations/ADA011247 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA011247 |
genre |
Ice permafrost Sea ice |
genre_facet |
Ice permafrost Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA011247 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766027418839023616 |