球圧子の押込試験による軟材料の厚さとYoung率の計測 Evaluation of Thickness and Young's Modulus of Soft Materials by using Spherical Indentation Testing

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Spherical indentation testing is a minimally invasive technique that can be used instead of highly invasive techniques such as tensile to measure the deformation behavior of various materials. Due to this characteristic, it is useful for evaluating the mechanics of human tissues because in vivo measurements can be performed easily. However, the large deformations that are caused by indentations lead to significant errors in the results evaluation by the Hertz theory, which is reliable in the case of the small deformation conditions. In this paper, spherical indentation testing is studied to evaluate the dimension and rigidity of soft materials such as biological soft tissues. Here, the Hertz theory is functionally expanded to evaluate indentations for soft materials, which undergo large deformations. In the expansions, the technique used for evaluating the thickness of finite specimens is first explained by alalyzing the experimental results of indentations. Then, the Young's modulus of soft materials with finite thickness is theoretically derived by defining an equivalent indentation strain for the analysis of the indentation process. The expansions are examined to evaluate its reliability by applying them to measure the thickness and Young's modulus of sheets of polyurethane resin.

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 75(755), 901-908, 2009

    一般社団法人 日本機械学会

参考文献:  17件中 1-17件 を表示

被引用文献:  3件中 1-3件 を表示

各種コード

  • NII論文ID(NAID)
    110007339893
  • NII書誌ID(NCID)
    AN0018742X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    0387-5008
  • NDL 記事登録ID
    10388749
  • NDL 雑誌分類
    ZM16(科学技術--科学技術一般--工業材料・材料試験)
  • NDL 請求記号
    Z14-737
  • データ提供元
    CJP書誌  CJP引用  NDL  NII-ELS  J-STAGE 
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