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  • Photoviscoelastic stress analysis near contact regions under complex loads
    Yoneyama, S. ; Takashi, Masahisa ; Gotoh, J.
    This study discusses several types of contact, involving compression and sliding, between a time-dependent material and a rigid body. It demonstrates a useful application of a new hybrid method for ... photoviscoelastic stress analysis under non-proportional loading conditions, in which the principal axes of stress, strain, and birefringence are not aligned with each other. Using a computer-aided image processing technique, the distribution of fringe order and birefringent principal axes in the vicinity of the contact surface are evaluated from a few photoviscoelastic images through a plane polariscope by using the well known diagonal summation theorem. The variation of the principal stress and/or strain differences as well as their directions are easily obtainable over a wide time range by use of the optical constitutive equations of photoviscoelasticity and the characteristic material properties functions.
    Vir: Mechanics of time-dependent materials : an international journal devoted to the time-dependent behaviour of materials and structures. - ISSN 1385-2000 (Vol. 1, no. 1, 1997, 51-65)
    Vrsta gradiva - članek, sestavni del
    Leto - 1997
    Jezik - angleški
    COBISS.SI-ID - 4037403

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