Effect of weight on dynamic ropes’ responses in indoor climbing

Abstract

The experimental-numerical-analytical methodology, based on a simple non-standard falling weight experiment, was used to investigate the influence of weight on climbing ropes’ response. Analysis of the impact force, deformation of rope, dissipated and retrieved energy, and maximum deceleration showed that the weight of the climber significantly affects all the examined physical quantities and, consequently, climbers’ safety. Smaller falling mass generates smaller maximum force, dissipates less energy, and generates smaller retrieved energy that propels climbers in the opposite vertical direction. However, maximum deceleration, considered to be one of the most important safety indicators, exhibits non-monotonic dependence on weight. In indoor climbing, these results might aid instructors in introducing measures to help in the traceability of the use of ropes regarding climbers’ weight.