Abstract
Determining, evaluating and thus knowing the rope modulus of elasticity is vital for a number of applications. Several measurement methods can be used and the evaluation of the results can also be realized in different ways. This article tries to give an overview, mentions the important characteristics of the complete process and highlights two measurement methods used at IFT. The methods are compared regarding their usage and measurement accuracy for both steel wire and fibre ropes.
Highlights
The modulus of elasticity (Young's modulus) is an important key figure in engineering sciences for characterising the strain behaviour of materials
The knowledge of the rope modulus of elasticity is most important in the field of elevator constructions
Standing ropes are often used as stay ropes on cable-stayed bridges, where the elongation of the ropes due to the static load of the bridge itself as well as dynamic loads such as car traffic or wind must be known exactly
Summary
The modulus of elasticity (Young's modulus) is an important key figure in engineering sciences for characterising the strain behaviour of materials. This applies to structural elements such as ropes, both for applications with running and standing ropes. Standing ropes are often used as stay ropes on cable-stayed bridges, where the elongation of the ropes due to the static load of the bridge itself as well as dynamic loads such as car traffic or wind must be known exactly With this knowledge, the ropes can be cut after production and a possible pre-stretching to a certain (shorter) length, so that they stretch to their desired length under load. Compared to the modulus of elasticity used for the description of engineering materials, the Herrmann / innoTRAC Journal 1 (2020)
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