PMMA棒を用いた粘弾性SHPB法の精度の検討

• 玉男木 隆之

  愛媛大学大学院理工学研究科

• 曽我部 雄次

  愛媛大学

書誌事項

タイトル別名

• Accuracy of Viscoelastic Split Hopkinson Pressure Bar Method Using PMMA Bars
• PMMAボウ オ モチイタ ネンダンセイ SHPBホウ ノ セイド ノ ケントウ

抄録

The Split Hopkinson Pressure Bar Method with viscoelastic stress bars is widely used as a technique for the evaluation of the dynamic properties of such materials. The validity of the Viscoelastic SHPB Method is examined. In this method, the stress and the strain of a specimen are calculated by considering the average of the data collected from both ends of the specimen. Therefore, the accuracy of the dynamic properties of viscoelastic materials depends on the experimental condition. The shape of the waves at the boundary side of the stress bar and the specimen are obtained numerically by using the Elementary theory, and the stress distribution in the specimen is analysed. It is necessary to measure the reflected and transmitted strain waves of moderate size and to almost equal the load on both ends of the specimen with this method. When the ratio of the stress bar and the specimen of mechanical impedance is about 15-20%, these requirements are met, and the dynamic properties of viscoelastic materials can be evaluated with good precision. The value of the complex compliance comes to vary, except under this condition, so this method can not be used well.

収録刊行物

• 実験力学

  実験力学 6 (4), 446-451, 2006

  日本実験力学会

キーワード

• Stress Wave
• Impact
• Dynamic Properties
• Impedance
• Viscoelastic Split Hopkinson Pressure Bar Method

詳細情報

• CRID: 1390282680166116736
• NII論文ID: 130004489904
• NII論文ID: 10018458282
• NII書誌ID: AA11822914
• DOI: 10.11395/jjsem.6.446
• ISSN: 18844219
• ISSN: 13464930
• NDL書誌ID: 8633010
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8633010
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
  • Crossref
• 抄録ライセンスフラグ: 使用不可