吸湿によるＣＦＲＰ弾性率変化の超音波伝播特性による評価

• 岡部 洋二

• 武田 展雄

書誌事項

タイトル別名

• Evaluation of Change in Elastic Constants of Moisture-Induced CFRP by Ultrasonic Wave Propagation Characteristics.
• キュウシツ ニヨル CFRP ダンセイリツ ヘンカ ノ チョウオンパ デンパ

抄録

Elastic constants of carbon fiber reinforced plastic (CFRP) composites that absorbed moisture were measured quantitatively and non-destructively by ultrasonic waves. The waves were transmitted through a moisture-induced unidirectional CFRP laminate which was immersed in water. By measuring phase velocities of transmitted waves for various incident angles, a full set of stiffness matrix components could be obtained. The moisture absorption was carried out in 60°C hot water before specimens were saturated with water. As the moisture content increased, all the elastic moduli decreased and Poisson's ratio increased. Particularly in-plane shear modulus decreased most. These changes show that the matrix resin was softened by moisture absorption. Furthermore, these changes were confirmed to be reversible through the measurement after moisture desorption.

収録刊行物

• 日本機械学会論文集Ａ編

  日本機械学会論文集Ａ編 64 (620), 1023-1028, 1998

  一般社団法人 日本機械学会

キーワード

• Composite Material
• Reinforced Plastics
• Anisotropy
• Moisture Absorption
• Moisture Desorption
• Ultrasonic Propagation
• Phase Velocity
• Stiffness Matrix

詳細情報

• CRID: 1390001204446275584
• NII論文ID: 110002374533
• NII論文ID: 10004534299
• NII書誌ID: AN0018742X
• DOI: 10.1299/kikaia.64.1023
• ISSN: 18848338
• ISSN: 03875008
• NDL書誌ID: 4468734
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4468734
• Web Site: http://www.jstage.jst.go.jp/article/kikaia1979/64/620/64_620_1023/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可