書誌事項
- タイトル別名
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- Damage Condition of GFRP Tank Used for Long Period in Alkaline Environment
- アルカリ カンキョウ デ チョウキカン シヨウ サレタ GFRPセイ タンク ノ ソンショウ ジョウタイ
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This study investigated damage condition of a large GFRP tank used to dilute caustic soda. The tank was continuously used in a chemical factory for 13 years and finally scrapped. Samples for the investigation were obtained from four typical positions of the tank. For the samples, optical observation was conducted on the inside surface of the tank and on its cross-section in detail. The results showed that alkaline solution penetrated from fishnet-like cracks formed on the surface to the inside of GFRP. Formation of the cracks was thought to be caused by both deterioration of surfacing mats and cyclic stress due to change in temperature. The penetrated solution damaged chopped strand mats existing under the surfacing mats. Such damage condition was adequately predicted using ultrasonic echo data. Although the damage condition was different at each position of the tank, the bending strength was almost the same. That was because no damage reached to the filament winding layer to maintain the strength. The above results suggested that the investigated tank was suitably scrapped before a severe incident.
収録刊行物
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- 材料
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材料 60 (3), 245-250, 2011
公益社団法人 日本材料学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001205418017920
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- NII論文ID
- 130000673522
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- NII書誌ID
- AN00096175
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- COI
- 1:CAS:528:DC%2BC3MXkvVeis7c%3D
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 11043257
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可