J043042 偏光感受型Optical Coherence Tomographyを用いた応力分布の非破壊マイクロ断層計測法の基礎的検討([J04304]高分子基複合材料の加工と評価(4))

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  • J043042 Fundamental Study on Non-destructive Micro-measurement of Stress Distribution using Polarization Sensitive Optical Coherence Tomography

抄録

Photoelasticity is a non-destructive, whole field, stress visualization technique based on birefringence. But this can not tomographically measure the internal stress distribution of sample materials. Recently, Polarization Sensitive Optical Coherence Tomography (PS-OCT) has been developed as a tomographical and non-destructive visualization method of biological tisuue birefringence at the micrometer resolution. In this study, a novel tomographic system of stress detection is proposed on the basis of PS-OCT, applying it to low density polyethylene (LDPE) samples under the loading. As a result, this system can provide the tomographic retardation map determining stress distribution, in which the photoelastic fringe pattern can be depth-resolved and depend on the loading stress. Therefore, the spatial fringe frequency can be calibrated with respect to loading stress. Consequently, it was concluded that the proposed method can non-destructivly visualize the internal stress distribution of non-transparent sample at the micrometer resolution.

収録刊行物

  • 年次大会

    年次大会 2011 (0), _J043042-1-_J043042-5, 2011

    一般社団法人 日本機械学会

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