恒阻大变形锚索弹塑性解析模型及数值分析

doi:10.13722/j.cnki.jrme.2019.0612

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Abstract In order to analyze the supernormal mechanics mechanism of NPR cable，first，an analytical model was applied to analyze the mechanical property of the NPR cable in elasto-plastic framework and was verified by the experimental result；Second，several parameter sensitivity analyses were performed and discussed. The relationship between the constant resistance and the geometrical parameters and mechanical parameters was then revealed；Finally，a 3D numerical model of NPR cable was established，and the corresponding parameters were calibrated in line with the experimental results. The numerical results were in agreement with experimental and analytical results. The variation trend of radial and axial displacement magnitude of pipe was discussed. The numerical and analytical models were proven reliable as assistant tools to design and improve the NPR cables in the future.

Key words： numerical analysis energy-absorbing cable static pull test 3D elasto-plastic analytical model

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	Articles by authors
	HU Jie1
	2
	LI Zhaohua1
	FENG Jili1
	ZHANG Longfei1
	2
	ZHOU Tiantian1
	2
	HE Manchao1

Cite this article:

HU Jie1,2,LI Zhaohua1, et al. Analytical model of elasto-plastic and numeric analysis for the constant resistance large deformation(NPR) cable[J]. , 2019, 38(S2): 3565-3574.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2019.0612 OR https://rockmech.whrsm.ac.cn/EN/Y2019/V38/IS2/3565

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