赤外線応力測定の基礎となる一方向ＣＦＲＰの材の熱弾性係数の検討

• 杉本 直

  航空宇宙技術研究所機体部

• 石川 隆司

  航空宇宙技術研究所機体部

書誌事項

タイトル別名

• Examination of Thermo-Elastic Constants of UD-CFRP Composites as the Basis of Infrared Stress Measurements.
• セキガイセン オウリョク ソクテイ ノ キソ ト ナル 1ホウコウ CFRPザ

抄録

Infrared stress measurement technique is applied for non-destructive evaluation of composites with advantage of in-situ and non-contact nature. Thermo-elastic constants of unidirectional carbon-epoxy (CFRP) needed for quantitative measurements are obtained by the infrared stress graphic system. The theoretical thermo-elastic constants are derived through the basic equations and compared with the experimental values. As a consequence, a reliability of the measured thermo-elastic constants is established and capability of this system for quantitative stress measurement is shown. It is also demonstrated that temperature dependency of a transverse coefficient of thermal expansion and a specific heat at constant stress of UD-CFRP cancel each other so as to decrease the temperature dependency of the thermo-elastic constant. This finding can be considered as an advantage of the infrared stress measurement for CFRP. In addition, other influential factors on the measurements are examined. In conclusion, basic knowledge and detailed technique for quantitative infrared stress measurements of CFRP are established.

収録刊行物

• 日本複合材料学会誌

  日本複合材料学会誌 23 (1), 7-14, 1997

  一般社団法人 日本複合材料学会

詳細情報

• CRID: 1390001204622840832
• NII論文ID: 10002464823
• NII書誌ID: AN00196748
• DOI: 10.6089/jscm.23.7
• ISSN: 18848559
• ISSN: 03852563
• NDL書誌ID: 4127035
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4127035
• 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