VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Time-dependent behavior of ropes under impact loading : a dynamic analysis
    Emri, Igor ...
    In this paper, we present new methodology based on a simple, non-standard falling-weight experiment, which allows for the examination of the functionality and durability of ropes beyond the findings ... from Union Internationale des Associations d'Alpinisme experiments. The experimental-analytical-numerical treatment allows for the examination of the time-dependent viscoelasto-plastic behavior of ropes exposed to arbitrary falling-weight loading conditions. Developed methodology allows for the prediction of the impact force and the jolt (the derivative of the acceleration/deacceleration acting on the climber); the viscoelasto-plastic deformation of the rope; stored, retrieved, and dissipated energy during the loading and unloading of the rope; and the modification of the stiffness of the rope within each loading cycle. By means of parametric error analysis, we showed that the relation between the error of calculated data and the error ofinput data is extremely non-linear. This demands careful and precise experiments. It was shown that the accuracy of prediction of all sought-after physical quantities could be obtained within the acceptable limits, which confirms that the proposed experimental-analytical methodology may be used foranalyses of the functionality and durability of ropes and the safety of climbers.
    Vir: Sports technology [Elektronski vir]. - ISSN 1934-6190 (Vol. 1, no. 4/5, 2008, str. 208-219)
    Vrsta gradiva - e-članek
    Leto - 2008
    Jezik - angleški
    COBISS.SI-ID - 10934299
    DOI

Vnos na polico