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

IF 3.4 3区工程技术 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS

Computational Particle Mechanics Pub Date : 2025-04-17 DOI:10.1007/s40571-025-00945-w

Zhuang Chen, Xinhao Yu, Diansen Yang

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Abstract

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.

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地下储氢库储氢套管损伤的动态塑性模型

地下储氢是缓解可再生能源生产波动的重要途径。但氢脆影响了UHS的高效安全运行。为了分析超高压系统的氢相关损伤，建立了环动力塑性氢脆模型（PDPHE）。所提出的PDPHE模型能够完整地描述氢辅助裂纹扩展的全过程，包括裂纹萌生和裂纹扩展。该模型考虑了氢扩散和塑性变形对损伤成核的影响。为了提高计算效率，利用NVIDIA的CUDA框架将并行计算应用于数值模拟中。数值算例研究了I型和复模态的氢辅助裂纹扩展。验证了所提出的PDPHE模拟氢脆效应损伤的有效性和有效性。对超高压套管的氢致损伤进行了数值分析。数值结果表明，外加载荷和初始氢浓度对裂纹形核和扩展速度有影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Computational Particle Mechanics Mathematics-Computational Mathematics

CiteScore

5.70

自引率

9.10%

发文量

期刊介绍： GENERAL OBJECTIVES: Computational Particle Mechanics (CPM) is a quarterly journal with the goal of publishing full-length original articles addressing the modeling and simulation of systems involving particles and particle methods. The goal is to enhance communication among researchers in the applied sciences who use "particles'''' in one form or another in their research. SPECIFIC OBJECTIVES: Particle-based materials and numerical methods have become wide-spread in the natural and applied sciences, engineering, biology. The term "particle methods/mechanics'''' has now come to imply several different things to researchers in the 21st century, including: (a) Particles as a physical unit in granular media, particulate ﬂows, plasmas, swarms, etc., (b) Particles representing material phases in continua at the meso-, micro-and nano-scale and (c) Particles as a discretization unit in continua and discontinua in numerical methods such as Discrete Element Methods (DEM), Particle Finite Element Methods (PFEM), Molecular Dynamics (MD), and Smoothed Particle Hydrodynamics (SPH), to name a few.