Scholarlink

<p>Underground hydrogen storage (UHS) is an important way to alleviate the fluctuating renewable energy production. But the hydrogen embrittlement affects the efficient and safe operation of UHS. In this study, a peridynamic plastic hydrogen embrittlement model (PDPHE model) is developed to analyze the hydrogen-related damage of the UHS. The proposed PDPHE model can capture the full process of the hydrogen-assisted crack propagation, including the crack initiation and the crack propagation. The influences of hydrogen diffusion and plastic deformation on the damage nucleation are considered in the proposed model. To improve the computing efficiency, parallel computing is applied in the numerical simulation by using the CUDA framework from the NVIDIA. The numerical examples investigate the hydrogen-assisted crack propagation of mode I and the complex mode. The validity and the efficiency of the proposed PDPHE in simulating the damage caused by the hydrogen embrittlement effect are validated. The hydrogen-related damage of the UHS casing pipe is numerically analyzed. And the numerical results indicate that the applied load and the initial applied hydrogen concentration have an impact on the crack nucleation and the propagation speed.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A peridynamic plastic model for hydrogen-related casing pipe damage of the underground hydrogen storage

  • 期刊论文

  • 发表日期：

    2025年4月17日

查看全文
  • Zhuang Chen,
  • Xinhao Yu,
  • Diansen Yang

摘要

Underground hydrogen storage (UHS) is an important way to alleviate the fluctuating renewable energy production. But the hydrogen embrittlement affects the efficient and safe operation of UHS. In this study, a peridynamic plastic hydrogen embrittlement model (PDPHE model) is developed to analyze the hydrogen-related damage of the UHS. The proposed PDPHE model can capture the full process of the hydrogen-assisted crack propagation, including the crack initiation and the crack propagation. The influences of hydrogen diffusion and plastic deformation on the damage nucleation are considered in the proposed model. To improve the computing efficiency, parallel computing is applied in the numerical simulation by using the CUDA framework from the NVIDIA. The numerical examples investigate the hydrogen-assisted crack propagation of mode I and the complex mode. The validity and the efficiency of the proposed PDPHE in simulating the damage caused by the hydrogen embrittlement effect are validated. The hydrogen-related damage of the UHS casing pipe is numerically analyzed. And the numerical results indicate that the applied load and the initial applied hydrogen concentration have an impact on the crack nucleation and the propagation speed.