Proceedings of 41st Danubia-Adria Symposium Advances in Experimental Mechanics (pp. 63-64)
АУТОР(И) / AUTHOR(S): Milan Blagojević 
, Živče Šarkočević , Milan Bojović , Ivica Čamagić
DOI: 10.46793/41DAS2025.063B
УВОД / INTRODUCTION:
The mechanical integrity of swaged ball terminations on control cables is a critical factor in the safety and reliability of aerospace, automotive, and industrial actuation systems. While analytical models can estimate strength for idealized geometries, real terminations involve complex interactions between the ball, wire strands, and the mating seat defined by military and industry specifications. The conditional-realistic (“pull-out”) test reproduces the actual seating of the termination to directly measure maximum extraction force (Ffail) and to identify prevailing failure modes under service-representative constraints. This approach captures combined effects of shear, localized indentation, and potential cable slippage, producing data suitable for design verification and quality assurance.
The present study outlines the experimental setup, testing procedure, and evaluation methodology for determining pull-out strength, aiming to establish reliable performance benchmarks for swaged ball cable terminations.
КЉУЧНЕ РЕЧИ / KEYWORDS:
ПРОЈЕКАТ / ACKNOWLEDGEMENT:
The part of this research is funded by Ministry of Science, Technological Development and Innovation of the Republic of Serbia, Contract no. 451- 03-65/2024-03/200155.
ЛИТЕРАТУРА / REFERENCES:
- MIL-DTL-781. Terminal, wire rope swaging, general specification for. U.S. Department of Defense. (Active DoD specification covering swaged wire-rope terminals; testing and material requirements).
- MS20664. Single shank ball fittings. (Specification sheet; geometry and minimum strength requirements for ball-end fittings).
- Crosby Group. Wire rope end termination user’s manual. (Application and installation procedures; guidance relevant to proof/load testing of swaged fittings).
- Zhang, C., Zhang, L., Luo, S., Zhao, Y., Zhang, J., & Xu, Y. Experimental study on the mechanical properties of the hot-cast anchors of Galfan-coated steel cables and locked-coil wire ropes at elevated temperatures. Constr Build Mater, 2023, 392, 131871 https://doi.org/10.1016/j.conbuildmat.2023.130917.
- Su, H., Ggg, G., Deng, L., Zhang, X., Li, J., Zhou, Q., Jia, C., Chen, X., Wang, P., & Li, D. Numerical and experimental research on the bearing characteristics and failure mechanism of zinc-cast socket termination for wire rope. Part 1:
Methodology and theory. Eng Fail Anal, 2024, 167, 108957 https://doi.org/10.1016/j.engfailanal.2024.108957. - Shimadzu AGS-X 10 kN https://www.ssi.shimadzu.com/products/materialstesting/ uni-ttm/autograph-ags-x-series/index.html. Accessed August 5, 2025.
- ASTM A931-18. Standard test method for tension testing of wire ropes and strand. ASTM International, West Conshohocken, PA, 2018.