A Visualizing Study of Blister Initiation Behavior by Gas Decompression

This study presents the effects of the type of polymer and gas on blister fracture in terms of visualizing O-ring behavior under high-pressure gas. To visualize blisters (internal cracks) by optical microscopy, transparent EPDM and VMQ O-rings were molded, and a special viewable high-pressure vessel...

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Autores principales:	Atsushi Koga, Tadahisa Yamabe, Hiroyuki Sato, Kenichi Uchida, Junichi Nakayama, Junichiro Yamabe, Shin Nishimura
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2013
Materias:	rubber o-ring blister high-pressure gas decompression failure decompression rate atomic force microscopy Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/0bf527cad51245bd917d11b0c81d2016
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spelling	oai:doaj.org-article:0bf527cad51245bd917d11b0c81d20162021-11-05T09:24:31ZA Visualizing Study of Blister Initiation Behavior by Gas Decompression1881-219810.2474/trol.8.68https://doaj.org/article/0bf527cad51245bd917d11b0c81d20162013-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/8/1/8_68/_pdf/-char/enhttps://doaj.org/toc/1881-2198This study presents the effects of the type of polymer and gas on blister fracture in terms of visualizing O-ring behavior under high-pressure gas. To visualize blisters (internal cracks) by optical microscopy, transparent EPDM and VMQ O-rings were molded, and a special viewable high-pressure vessel with a glass viewport was developed. The O-ring specimens were exposed to high-pressure hydrogen, helium, and nitrogen gases at 10 MPa under room temperature, 25°C, after which these gases were rapidly decompressed for 0.3 seconds. The blister fracture occurred in EPDM but not in VMQ even though the two materials had the same Young's modulus. It is presumed by AFM observation that the difference in microstructure at sub-micrometer level between EPDM and VMQ influenced their blister initiation. The blister damage of the transparent EPDM O-ring in nitrogen gas was the most serious, while that in the helium gas was the slightest. The reason why the blister damage of the O-ring in the helium gas was the slightest is considered to be because solute helium gas diffused out from the O-ring after decompression faster than the other gases.Atsushi KogaTadahisa YamabeHiroyuki SatoKenichi UchidaJunichi NakayamaJunichiro YamabeShin NishimuraJapanese Society of Tribologistsarticlerubbero-ringblisterhigh-pressure gasdecompression failuredecompression rateatomic force microscopyPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 8, Iss 1, Pp 68-75 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	rubber o-ring blister high-pressure gas decompression failure decompression rate atomic force microscopy Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	rubber o-ring blister high-pressure gas decompression failure decompression rate atomic force microscopy Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Atsushi Koga Tadahisa Yamabe Hiroyuki Sato Kenichi Uchida Junichi Nakayama Junichiro Yamabe Shin Nishimura A Visualizing Study of Blister Initiation Behavior by Gas Decompression
description	This study presents the effects of the type of polymer and gas on blister fracture in terms of visualizing O-ring behavior under high-pressure gas. To visualize blisters (internal cracks) by optical microscopy, transparent EPDM and VMQ O-rings were molded, and a special viewable high-pressure vessel with a glass viewport was developed. The O-ring specimens were exposed to high-pressure hydrogen, helium, and nitrogen gases at 10 MPa under room temperature, 25°C, after which these gases were rapidly decompressed for 0.3 seconds. The blister fracture occurred in EPDM but not in VMQ even though the two materials had the same Young's modulus. It is presumed by AFM observation that the difference in microstructure at sub-micrometer level between EPDM and VMQ influenced their blister initiation. The blister damage of the transparent EPDM O-ring in nitrogen gas was the most serious, while that in the helium gas was the slightest. The reason why the blister damage of the O-ring in the helium gas was the slightest is considered to be because solute helium gas diffused out from the O-ring after decompression faster than the other gases.
format	article
author	Atsushi Koga Tadahisa Yamabe Hiroyuki Sato Kenichi Uchida Junichi Nakayama Junichiro Yamabe Shin Nishimura
author_facet	Atsushi Koga Tadahisa Yamabe Hiroyuki Sato Kenichi Uchida Junichi Nakayama Junichiro Yamabe Shin Nishimura
author_sort	Atsushi Koga
title	A Visualizing Study of Blister Initiation Behavior by Gas Decompression
title_short	A Visualizing Study of Blister Initiation Behavior by Gas Decompression
title_full	A Visualizing Study of Blister Initiation Behavior by Gas Decompression
title_fullStr	A Visualizing Study of Blister Initiation Behavior by Gas Decompression
title_full_unstemmed	A Visualizing Study of Blister Initiation Behavior by Gas Decompression
title_sort	visualizing study of blister initiation behavior by gas decompression
publisher	Japanese Society of Tribologists
publishDate	2013
url	https://doaj.org/article/0bf527cad51245bd917d11b0c81d2016
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A Visualizing Study of Blister Initiation Behavior by Gas Decompression

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