Experimental evaluation of climbing ropes under dynamic load

Szust, Agnieszka; Banas, Zuzanna; Żak, Andrzej

doi:10.1016/j.matpr.2017.06.078

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…The simulation run by setting 10 mm diameter pins at both corners, instead of rope. Although normally in most activity ropes are used, to simplify and reducing the effect of other variable researched by Nikonov et al [21], Agnieszka et al [22], thus steel pin is used. One pin set as fixed pin and second pin that at other side to pull the model.…”

Section: Methodsmentioning

confidence: 99%

Design and Evaluation of Carabiner Using Finite Element Analysis

Sentanu

Muflikhun²

2022

JRM

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A carabiner is a fall protection safety tool that is used in various outdoor and indoor activities, most known usage is at climbing and high-risk work related to elevation. A standard carabiner is capable to withstand at least 7 kN of static load. In this study, we only observe how carabiners respond in certain static loads by using simulation software and comparing the result with the standard of carabiners. We use F1956-13 as a standard of the test procedure, and aluminum alloy 6061 as the material. After the study from simulation result, it shows that stress and deformation change linearly with loads. But the safety factor has different behavior, after the load applied increases over 1 kN the slope decreases significantly, and the safety factor is around 0,17 at 7 kN applied load. Besides that, we understand that design analysis by simulation is a good method to obtain the optimal geometry, or shape of the model, but computational simulation cannot replace physical mechanical tests.

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Section: Methodsmentioning

confidence: 99%

Design and Evaluation of Carabiner Using Finite Element Analysis

Sentanu

Muflikhun²

2022

JRM

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“…In fact, as has been observed by other authors, in each successive fall the impact force measured was greater. This shows that the rope needs some time to recover its properties [39]. In addition to empirical and small-scale studies, we need studies with larger samples in order to observe variability between systems and equipment [40][41][42].…”

Section: Variablementioning

confidence: 99%

Tensile Strength of Ropes and Friction Hitch Used in Tree Climbing Work

Bianchini

Picchio

Colantoni

et al. 2021

Forests

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Tree climbing techniques for arboriculture are becoming more and more popular, but like any work activity, there are risks for the operator. The PPE (personal protective equipment) and protective systems studied here include semi-static ropes and friction hitches. The work rope/friction hitch system is a combination that many operators rely on, but unlike current mechanical rope clamps and descenders, they do not have European certifications. For this reason, tensile tests were carried out using a traction bench on rope/knot systems. Two rope models and two types of knots were used to stress the systems and materials as much as possible, so as to observe the resulting ratios. A total of 36 tests were carried out in which measurements were taken, including applied load in traction, knot creep, and rope diameter changes. Several results were obtained, including a maximum load of 18.7 kN, a maximum slip of 9.6 cm and a maximum diameter variation of 3 mm. This work represents a preliminary investigation for verifying the relationship between work ropes and friction knots. Relationships among the variables were observed; differences emerged mainly as a function of the type of knot used rather than the type of rope used. The data obtained is also important for applications towards improving preventative safety measures.

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Loads borne by a tie-in point (TIP) during arboricultural climbing operations

Kane¹

2020

Urban Forestry & Urban Greening

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Experimental evaluation of climbing ropes under dynamic load

Cited by 5 publications

References 3 publications

Design and Evaluation of Carabiner Using Finite Element Analysis

Design and Evaluation of Carabiner Using Finite Element Analysis

Tensile Strength of Ropes and Friction Hitch Used in Tree Climbing Work

Loads borne by a tie-in point (TIP) during arboricultural climbing operations

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