Study on influence of cavitation in liquefied tanks on component materials of cryogenic tanks

• Project/Area Number: 23760104
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Materials/Mechanics of materials
• Research Institution: Sendai National College of Technology
• Principal Investigator: KUMAGAI Susumu 仙台高等専門学校, マテリアル環境工学科, 准教授 (30390389)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2011: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
• Keywords: 損傷 / キャビテーション / 繊維強化プラスチック / 液体タンク / タンク材料 / 高圧タンク / 液化タンク

Research Abstract

Lightweight fuel tank to be used as next generation transport equipment is required long time durability and high intensity. When discharged from liquefied gas tank of liquefied gas, damage occurred to tanks material by cavitation. This study is intended to damage process of the tanks material caused by cavitation in tank. Glass fiber reinforced plastic (GFRP) are considered as the tanks materials. R-134a used as pressure-liquefied gas at 273 K was boiled by instantaneous depressurization. Specimens of GFRP were immersed in the cyclic condition. Laser microscope measurements for the surface of GFRP specimens reveal complex change in the depth of vacancies with cyclic cavitation condition. Interlaminar shear strength of each GFRP specimen obtained from short beam three point bending tests in accordance with JIS K 7057:2006 is also affected by the cyclic condition.

Research Products

• [Presentation] ラマン分光を用いた熱可塑性樹脂の表面損傷評価に関する研究 (2014)
  • Author(s): 櫻井香織,熊谷進
  • Organizer: 第19回高専シンポジウムin久留米
  • Place of Presentation: 久留米高専
  • Year and Date: 2014-01-25
• [Presentation] タンク内キャビテーションによる損傷評価法の開発 (2014)
  • Author(s): 橋本悠希,熊谷進,廣和樹
  • Organizer: 第19回高専シンポジウムin久留米
  • Place of Presentation: 久留米高専
  • Year and Date: 2014-01-25
• [Presentation] ガラス繊維強化プラスチックの強度に及ぼすタンク内キャビテーションの影響 (2012)
  • Author(s): 橋本悠希,熊谷進,廣和樹
  • Organizer: 日本機械学会2012年度年次大会
  • Place of Presentation: 金沢大学
  • Year and Date: 2012-09-12
• [Presentation] ガラス繊維強化プラスチックの強度に及ぼすタンク内キャビテーションの影響 (2012)
  • Author(s): 橋本 悠希, 熊谷 進, 廣 和樹
  • Organizer: 日本機械学会2012年度年次大会
  • Place of Presentation: 金沢市, 金沢大学角間キャンパス
• [Presentation] ラマン分光を用いた熱可塑性樹脂の表面損傷評価に関する研究
  • Author(s): 櫻井香織, 熊谷進
  • Organizer: 高専シンポジウム
  • Place of Presentation: 久留米工業高等専門学校（久留米市）
• [Presentation] タンク内キャビテーションによる損傷評価法の開発
  • Author(s): 橋本悠希, 熊谷進, 廣和樹
  • Organizer: 高専シンポジウム
  • Place of Presentation: 久留米工業高等専門学校（久留米市）