• parametric studies on the propagation of local collapse in tensegrity grids

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1393/02/01
    • تاریخ انتشار در تی پی بین: 1393/02/01
    • تعداد بازدید: 605
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this paper, parametric studies on the propagation of local collapse in continuous struts tensegrity grids has been investigated taking into account both geometric and material nonlinearities. when a local collapse, e.g. member snap through, occurs in these systems, some amount of kinetic energy may be released. this released energy giving an initial velocity to adjacent part of the system, causes the local collapse to have dynamic nature. modeling the dynamic effects of local collapse may lead to collapse of additional part of the system and even the occurrence of progressive collapse. therefore, a comparative numerical study into the propagation of local collapse in these grids is performed using nonlinear static and dynamic analysis to determine nodal displacements responses of the systems. results of the present study evaluate the effects of various design parameters such as self-stress levels, effective length factor of struts, damping characteristics, etc. on the propagation of snap-through buckling in these structures. the conclusions, drawn from this study, lead to the suggestion of some guidelines and recommendations for the design of such structures.

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