光弾性法によるデザイナブルゲルの応力測定

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  • Stress measurement of designable-gel using photoelastic method

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<p>We investigated mechanical properties and photoelastic coefficient of designable-gel, double network gel, for fabricating vessel models. Designable-gel samples were prepared with different material ratios, and especially crosslinker(MBAA) 27 mM samples were prepared by molding and shaping with 3D gel printer “SWIM-ER” (Prof. Furukawa et al., Yamagata Univ.). Moreover, the stress occurring in the sample was measured by the photoelastic stress measurement system using photoelastic effect and image processing, developed by our group, and the error between the tensile test result and the measurement system result was evaluated. The young's modulus of designable-gel was found to be 0.12 - 0.77 MPa for strain 0 - 15%, and 0.22 - 1.3 MPa for 15% ~, and is within the young's modulus of human vessels. Therefore, designable-gel was shown to be useful for reproducing human vessels. The photoelastic coefficient of designable-gel was 0.012 - 0.022 ×10-9 Pa-1, and is effective for measuring stress by photoelastic effect. The error between the tensile test result and the measurement system result was 7.3%. The vessel model made of designable-gel can be applied to the photoelastic stress measurement system, because the error is small and acceptable.</p>

収録刊行物

  • 年次大会

    年次大会 2017 (0), J0470305-, 2017

    一般社団法人 日本機械学会

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