Experimental and Numerical Simulation Study of High-Energy Pipeline Impact on Half Steel Plate Reinforced Walls in Nuclear Power Plants

LIU Bo; ZOU Delei; TENG Zhenchao

doi:10.3724/j.gyjzG25042803

Volume 56 Issue 9

Sep. 2026

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LIU Bo, ZOU Delei, TENG Zhenchao. Experimental and Numerical Simulation Study of High-Energy Pipeline Impact on Half Steel Plate Reinforced Walls in Nuclear Power Plants[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(9): 26-39. doi: 10.3724/j.gyjzG25042803

Citation:

LIU Bo, ZOU Delei, TENG Zhenchao. Experimental and Numerical Simulation Study of High-Energy Pipeline Impact on Half Steel Plate Reinforced Walls in Nuclear Power Plants[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(9): 26-39. doi: 10.3724/j.gyjzG25042803

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Experimental and Numerical Simulation Study of High-Energy Pipeline Impact on Half Steel Plate Reinforced Walls in Nuclear Power Plants

doi: 10.3724/j.gyjzG25042803

LIU Bo^1,2,
ZOU Delei^{2
,
,},
TENG Zhenchao¹

1. College of Civil Engineering and Architecture, Northeast Petroleum University, Daqing 163318, China;
2. College of Civil Engineering, Dalian Minzu University, Dalian 116600, China

Received Date: 2025-04-28
Available Online: 2026-11-07

Abstract

Abstract

This study investigates the impact effects of main steam pipe whip on the half steel plate-reinforced wall of a nuclear power plant through a series of impact tests. The damage mechanisms and failure modes of the high-strength concrete （HSC） plates were analyzed in detail. Simulation analysis using LS-DYNA was conducted， and the simulation model was validated against the experimental results. A full-scale， refined simulation model for high-energy pipeline impact on the steel plate-reinforced wall of a nuclear power plant was established using the validated simulation parameters. The simulation explored the effects of various wall design parameters and impact conditions on wall damage. The results indicated that the pipeline projectile impact test effectively revealed the damage and failure characteristics of the HSC plate， providing valuable static and time-history response data. Finite element analysis accurately predicted the experimental outcomes. In the full-scale model， the impact resistance of the steel plate-reinforced wall was superior. The impact force and wall damage were further reduced when the studs and steel mesh were welded. An increase in speed and target impact angle resulted in a gradual increase in the penetration depth of the pipe into the wall. Within the pipeline whipping parameters defined in this study， the maximum penetration depth of the wall structure was 0.42 m， with no occurrence of penetration failure.
- high-energy pipeline,
- whip impact,
- half steel plate-reinforced concrete structure,
- impact test,
- numerical simulation

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References(28)

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