Image Analysis of Photoelastic Fringes : 1st Report, A Method for Determination of Fringe Orders and Directions of Principal Stresses in the Whole Region of a 2-dimensional Model by Image Processing

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This paper describes a method for the determination of fringe orders and directions of principal stresses in the whole region of a 2-dimensional photoelastic model by image processing. The fringes (isochromatics, isoclinics) are extracted as points where the first derivative of the density distribution is zero. The determination of fringe orders or directions of principal stresses between extracted fringes uses the values and pattern of extracted fringes. The results obtained can be displayed as a shaded image on the monitor TV, and be utilized effectively for stress analysis by the finite element method, etc.

Journal

  • Bulletin of JSME

    Bulletin of JSME 29 (256), 3280-3285, 1986

    The Japan Society of Mechanical Engineers

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