Component Testing for Modular Pier Replacement at McMurdo Station, Antarctica: Inflatable Pontoons, Gelbo Flex and Full-Scale Cold Storage/Fold Tests
The National Science Foundation is constantly striving to improve the efficiency and reliability of its support functions for the United States Antarctic Program. The annual ship offload at McMurdo Station is currently dependent on an unreliable ice pier; and a lightweight, rapidly deployable floati...
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ftdtic:ADA608701 2023-05-15T13:53:41+02:00 Component Testing for Modular Pier Replacement at McMurdo Station, Antarctica: Inflatable Pontoons, Gelbo Flex and Full-Scale Cold Storage/Fold Tests Weale, Jason C Knuth, Margaret A ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB 2014-08 text/html http://www.dtic.mil/docs/citations/ADA608701 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA608701 en eng http://www.dtic.mil/docs/citations/ADA608701 Approved for public release; distribution is unlimited. DTIC Civil Engineering *PIERS ANTARCTIC REGIONS COLD STORAGE FABRICS FIELD TESTS LOGISTICS SUPPORT LOW TEMPERATURE PONTOONS ANTARCTIC PONTOON PIERS COLD GELBO FLEX TESTS EPOLAR EXTREME-COLD FABRIC TESTS LMCS COLD TESTS MCMURDO PIER MODULAR PIERS USAP Text 2014 ftdtic 2016-02-24T16:10:44Z The National Science Foundation is constantly striving to improve the efficiency and reliability of its support functions for the United States Antarctic Program. The annual ship offload at McMurdo Station is currently dependent on an unreliable ice pier; and a lightweight, rapidly deployable floating causeway system is one potential solution to mitigate challenges associated with the ice pier. This assessment focused on determining the durability and strength of the pontoon fabric when tested at Antarctic temperatures by using a cold-modified Gelbo flex (ASTM F392) test. The neoprene on nylon pontoon fabric performed well during the Gelbo tests. One of the three samples leaked during pressure tests after 510 cycles while the remaining 2 samples survived intact for all 1510 cycles. In addition, the full-scale pontoon was cycled through 10 periods of cold soaking at 40 C followed by rapid inflation outdoors. Baseline air mass loss calculations before and after the cold cycles indicated that the tests caused no leaks or damage. Based on these results, a field trial of the LMCS at McMurdo Station is recommended provided the remaining components are suitable for the logistical needs and can function in the required environmental conditions. The original document contains color images. Text Antarc* Antarctic Antarctica United States Antarctic Program Defense Technical Information Center: DTIC Technical Reports database Antarctic McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Civil Engineering *PIERS ANTARCTIC REGIONS COLD STORAGE FABRICS FIELD TESTS LOGISTICS SUPPORT LOW TEMPERATURE PONTOONS ANTARCTIC PONTOON PIERS COLD GELBO FLEX TESTS EPOLAR EXTREME-COLD FABRIC TESTS LMCS COLD TESTS MCMURDO PIER MODULAR PIERS USAP |
spellingShingle |
Civil Engineering *PIERS ANTARCTIC REGIONS COLD STORAGE FABRICS FIELD TESTS LOGISTICS SUPPORT LOW TEMPERATURE PONTOONS ANTARCTIC PONTOON PIERS COLD GELBO FLEX TESTS EPOLAR EXTREME-COLD FABRIC TESTS LMCS COLD TESTS MCMURDO PIER MODULAR PIERS USAP Weale, Jason C Knuth, Margaret A Component Testing for Modular Pier Replacement at McMurdo Station, Antarctica: Inflatable Pontoons, Gelbo Flex and Full-Scale Cold Storage/Fold Tests |
topic_facet |
Civil Engineering *PIERS ANTARCTIC REGIONS COLD STORAGE FABRICS FIELD TESTS LOGISTICS SUPPORT LOW TEMPERATURE PONTOONS ANTARCTIC PONTOON PIERS COLD GELBO FLEX TESTS EPOLAR EXTREME-COLD FABRIC TESTS LMCS COLD TESTS MCMURDO PIER MODULAR PIERS USAP |
description |
The National Science Foundation is constantly striving to improve the efficiency and reliability of its support functions for the United States Antarctic Program. The annual ship offload at McMurdo Station is currently dependent on an unreliable ice pier; and a lightweight, rapidly deployable floating causeway system is one potential solution to mitigate challenges associated with the ice pier. This assessment focused on determining the durability and strength of the pontoon fabric when tested at Antarctic temperatures by using a cold-modified Gelbo flex (ASTM F392) test. The neoprene on nylon pontoon fabric performed well during the Gelbo tests. One of the three samples leaked during pressure tests after 510 cycles while the remaining 2 samples survived intact for all 1510 cycles. In addition, the full-scale pontoon was cycled through 10 periods of cold soaking at 40 C followed by rapid inflation outdoors. Baseline air mass loss calculations before and after the cold cycles indicated that the tests caused no leaks or damage. Based on these results, a field trial of the LMCS at McMurdo Station is recommended provided the remaining components are suitable for the logistical needs and can function in the required environmental conditions. The original document contains color images. |
author2 |
ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB |
format |
Text |
author |
Weale, Jason C Knuth, Margaret A |
author_facet |
Weale, Jason C Knuth, Margaret A |
author_sort |
Weale, Jason C |
title |
Component Testing for Modular Pier Replacement at McMurdo Station, Antarctica: Inflatable Pontoons, Gelbo Flex and Full-Scale Cold Storage/Fold Tests |
title_short |
Component Testing for Modular Pier Replacement at McMurdo Station, Antarctica: Inflatable Pontoons, Gelbo Flex and Full-Scale Cold Storage/Fold Tests |
title_full |
Component Testing for Modular Pier Replacement at McMurdo Station, Antarctica: Inflatable Pontoons, Gelbo Flex and Full-Scale Cold Storage/Fold Tests |
title_fullStr |
Component Testing for Modular Pier Replacement at McMurdo Station, Antarctica: Inflatable Pontoons, Gelbo Flex and Full-Scale Cold Storage/Fold Tests |
title_full_unstemmed |
Component Testing for Modular Pier Replacement at McMurdo Station, Antarctica: Inflatable Pontoons, Gelbo Flex and Full-Scale Cold Storage/Fold Tests |
title_sort |
component testing for modular pier replacement at mcmurdo station, antarctica: inflatable pontoons, gelbo flex and full-scale cold storage/fold tests |
publishDate |
2014 |
url |
http://www.dtic.mil/docs/citations/ADA608701 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA608701 |
long_lat |
ENVELOPE(166.667,166.667,-77.850,-77.850) |
geographic |
Antarctic McMurdo Station |
geographic_facet |
Antarctic McMurdo Station |
genre |
Antarc* Antarctic Antarctica United States Antarctic Program |
genre_facet |
Antarc* Antarctic Antarctica United States Antarctic Program |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA608701 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766259061254258688 |