Engineering Fracture Mechanics最新文献_第7页

Hygrothermal degradation of modes I and II fracture toughness in flat carbon/epoxy composites: experimental and numerical insights 平面碳/环氧复合材料I和II型断裂韧性的湿热降解：实验和数值见解

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-08 DOI: 10.1016/j.engfracmech.2025.111393

Leonardo G. Schreer , Antonios G. Stamopoulos , Paweł Stabla , Michał Smolnicki , Sandro C. Amico , José Humberto S. Almeida Jr

{"title":"Hygrothermal degradation of modes I and II fracture toughness in flat carbon/epoxy composites: experimental and numerical insights","authors":"Leonardo G. Schreer , Antonios G. Stamopoulos , Paweł Stabla , Michał Smolnicki , Sandro C. Amico , José Humberto S. Almeida Jr","doi":"10.1016/j.engfracmech.2025.111393","DOIUrl":"10.1016/j.engfracmech.2025.111393","url":null,"abstract":"<div><div>Filament winding is a widely used technique for manufacturing axisymmetric fibre-reinforced composites, such as pressure vessels and pipes, designed for harsh environments. Understanding the effects of these conditions on mechanical performance is crucial. This study presents a combined experimental and numerical investigation of unidirectional carbon/epoxy composites manufactured via filament winding, subjected to tensile, compressive, shear, and interlaminar fracture toughness tests (Modes I and II). Samples were exposed to hygrothermal ageing at room and elevated temperatures to assess moisture absorption and its influence on fracture properties. Special attention is given to the variation in interlaminar fracture toughness as a result of hygrothermal exposure. A fractographic analysis reveals fibre bridging as a key mechanism behind enhanced Mode I toughness, while Mode II toughness deteriorates with ageing. The findings provide critical insights into the durability and failure mechanisms of filament-wound composites under service conditions.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"326 ","pages":"Article 111393"},"PeriodicalIF":4.7,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of grain boundaries on the fracture behavior of polycrystalline electrode materials: a chemo-mechanical phase field model 晶界对多晶电极材料断裂行为的影响：化学-力学相场模型

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-06 DOI: 10.1016/j.engfracmech.2025.111389

Yisen Peng , Feng Hao

{"title":"Impact of grain boundaries on the fracture behavior of polycrystalline electrode materials: a chemo-mechanical phase field model","authors":"Yisen Peng , Feng Hao","doi":"10.1016/j.engfracmech.2025.111389","DOIUrl":"10.1016/j.engfracmech.2025.111389","url":null,"abstract":"<div><div>Grain boundaries play a dominant role in Li<sup>+</sup> transport and mechanical deformation of polycrystalline electrode materials. Herein, a chemo-mechanical phase field model is developed to investigate the effects of grain boundary on chemo-mechanical responses in lithium batteries. It is demonstrated that grain boundaries with high diffusion coefficients provide a fast pathway for the Li<sup>+</sup> transport, which alleviates the nucleation of inter- and intra-granular fracture while accelerates crack propagation through the particle center. Grain boundaries with low diffusion coefficients hinder the Li<sup>+</sup> transport between grains, which leads to crack mainly initiated in the outer layer of electrode particles. Improving grain boundary fracture toughness is efficient for alleviating inter-granular fracture. Interestingly, high grain boundary fracture toughness even hinders crack propagation along grain boundaries but has no effect on the total damage of the particle. For high rate operation of batteries, increasing grain boundary fracture toughness is more significant to mitigate inter-granular fracture. This fundamental study provides insights into the multi-physical behavior of polycrystalline electrodes with various chemical and mechanical properties of grain boundaries.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"326 ","pages":"Article 111389"},"PeriodicalIF":4.7,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Translaminar fracture toughness of carbon fibre reinforced polymer composite laminates with cross-ply configuration under biaxial tensile loading 碳纤维增强聚合物复合材料层合板在双向拉伸载荷下的跨层断裂韧性

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-05 DOI: 10.1016/j.engfracmech.2025.111386

Yajing Feng , Jingyu Wang , Youcun Zhao , Longfei Cheng , Ting Zhang , Hao Cui

引用次数: 0

Inverse engineering based analytical and numerical prediction on ductile fracture for AZ60M magnesium alloy under wide stress triaxiality 基于逆工程的AZ60M镁合金宽应力三轴韧性断裂分析与数值预测

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-05 DOI: 10.1016/j.engfracmech.2025.111384

Ashiq Iqbal Chowdhury , Thamer Sami Alhalaybeh , Liucheng Zhou , Xiaoqing Liang , Yanshan Lou

{"title":"Inverse engineering based analytical and numerical prediction on ductile fracture for AZ60M magnesium alloy under wide stress triaxiality","authors":"Ashiq Iqbal Chowdhury , Thamer Sami Alhalaybeh , Liucheng Zhou , Xiaoqing Liang , Yanshan Lou","doi":"10.1016/j.engfracmech.2025.111384","DOIUrl":"10.1016/j.engfracmech.2025.111384","url":null,"abstract":"<div><div>The lightweight automotive and construction industries increasingly rely on magnesium (Mg) alloy structural components as they have the potential to enhance service performance and enable cost-effective manufacturing. However, the extrusion of Mg alloys presents significant challenges, primarily due to their limited formability and the strong crystallographic textures that develop during extrusion. This study investigates the influence of the fracture behavior of AZ60M Mg alloy bars under different stress states, employing several uncoupled damage criteria to enable reliable ductile failure predictions. Tensile and compression tests were conducted using AZ60M specimens of varying geometries and dimensions, revealing distinct deformation scenarios, stress–strain relationships, and fracture forms. Digital Image Correlation technology was employed to capture detailed deformation behavior under diverse stress triaxialities across the extrusion loading direction. Initially, finite element models were developed for each specimen and then optimized using an experiment-based inverse engineering approach, through which the fracture strains were derived by correlating simulation results with experimental data. Additionally, plastic deformation behavior was accurately simulated using the Swift-Voce hardening law. Finally, the Rice-Tracey, DF2014, and DF2016 fracture criteria were calibrated using the experimental data, with the DF2016 model showing superior predictive performance. These findings provide valuable insights for improving the formability and ductile failure prediction of Mg alloys, which is critical for their broader application in lightweight structural components.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"326 ","pages":"Article 111384"},"PeriodicalIF":4.7,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144596665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A stochastic approach for grain boundary toughness in phase-field fracture modeling 相场断裂模拟中晶界韧性的随机方法

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-05 DOI: 10.1016/j.engfracmech.2025.111385

Miguel E. Fernandez , Remi Dingreville , Douglas E. Spearot

{"title":"A stochastic approach for grain boundary toughness in phase-field fracture modeling","authors":"Miguel E. Fernandez , Remi Dingreville , Douglas E. Spearot","doi":"10.1016/j.engfracmech.2025.111385","DOIUrl":"10.1016/j.engfracmech.2025.111385","url":null,"abstract":"<div><div>Fracture is fundamentally an atomic scale phenomenon. Grain-boundary structure, solute embrittlement, and grain-boundary defects can all impact crack propagation, but explicitly including atomic scale effects in models designed to study fracture at the micron or higher length scale is challenging. In contemporary phase-field fracture methods, it is common to assume an average critical energy release rate for a material domain; however, this approach has deleterious consequences for accuracy since crack propagation is not determined by local average toughness, but instead by a weakest link. We develop a phase-field fracture methodology where local critical energy release rates are input stochastically at grain boundaries in a polycrystal to implicitly include atomic scale effects. We perform multiple mode I fracture simulations to determine distributions of critical stress intensity <span><math><msub><mi>K</mi><mi>c</mi></msub></math></span>, strain energy density <span><math><mi>ψ</mi></math></span>, and maximum tensile stress <span><math><msub><mi>σ</mi><mrow><mi>max</mi></mrow></msub></math></span>. The mean, standard deviation, initial crack position, and mesh size were varied to determine their effects. We generally found that the mean and variance of the output distribution of <span><math><msub><mi>K</mi><mi>c</mi></msub></math></span> correlated strongly with the mean and variance of the input distribution for critical energy release rate. Ultimately, in 83.8% of simulations, for reasonable expectations of the mean and variance of the critical energy release rate, locally stochastic fracture properties result in lower fracture toughness compared to models with uniform grain-boundary properties due to this weakest-link behavior. This validates the ability of the method to capture the extreme-value nature of fracture and demonstrates the importance of incorporating distributions of the critical energy release rate into simulations, not just the mean.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"326 ","pages":"Article 111385"},"PeriodicalIF":4.7,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of rapid tempering and cementite morphology on hydrogen diffusion and trapping in a medium-carbon advanced high-strength steel 快速回火和渗碳体形态对中碳高级高强钢中氢扩散和俘获的影响

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-04 DOI: 10.1016/j.engfracmech.2025.111376

Renata Latypova , Vahid Javaheri , Lisa Claeys , Kim Verbeken , Tom Depover , Jukka Kömi , Sakari Pallaspuro

{"title":"Effect of rapid tempering and cementite morphology on hydrogen diffusion and trapping in a medium-carbon advanced high-strength steel","authors":"Renata Latypova , Vahid Javaheri , Lisa Claeys , Kim Verbeken , Tom Depover , Jukka Kömi , Sakari Pallaspuro","doi":"10.1016/j.engfracmech.2025.111376","DOIUrl":"10.1016/j.engfracmech.2025.111376","url":null,"abstract":"<div><div>Microstructural changes during the tempering of carbon steels can influence their interaction with hydrogen (H) in several manners, and novel heat treatments could aid in reducing susceptibility to hydrogen embrittlement. Here, the effect of rapid tempering (RT) on H diffusion and trapping was investigated in a direct-quenched (DQ) medium-carbon steel and its tempered variants, T420 (RT at 420 °C) and T720 (RT at 720 °C). RT reduces RA fraction, dislocation density, microstrain, and low-angle grain boundary surface area while increasing the cementite fraction and modifying its morphology, resulting in mainly rod-like cementite in T420, and a higher fraction of globular cementite in T720. Electrochemical H permeation and thermal desorption spectroscopy were used to evaluate H diffusion coefficients (D) and trapping behaviour. DQ and T420 exhibit similar D, while T720 shows significantly faster diffusion, with an inverse correlation to H content. Cementite acts as a weak H trap, showing increased trapping with increasing interface area for rod-like cementite.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"326 ","pages":"Article 111376"},"PeriodicalIF":4.7,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fragmentation characteristics and energy components of non-cylindrical rock specimens in a novel collision system 一种新型碰撞系统中非圆柱形岩石试样的破碎特性和能量分量

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-04 DOI: 10.1016/j.engfracmech.2025.111381

Zong-Xian Zhang , Liyuan Chi , Zida Liu , Toochukwu Ozoji , Wuxing Wu , Chen Huang , Xianbo Guan

{"title":"Fragmentation characteristics and energy components of non-cylindrical rock specimens in a novel collision system","authors":"Zong-Xian Zhang , Liyuan Chi , Zida Liu , Toochukwu Ozoji , Wuxing Wu , Chen Huang , Xianbo Guan","doi":"10.1016/j.engfracmech.2025.111381","DOIUrl":"10.1016/j.engfracmech.2025.111381","url":null,"abstract":"<div><div>This paper presents the results of rock fragmentation by using a new collision method we reported earlier. Since the method has been proved to be successful for cylindrical rock specimens in our earlier papers, this paper presents the results from 28 non-cylindrical rock specimens such as half-cylinders and half-discs. The results show that: (1) all rock specimens were successfully released at a flight velocity of 13.7 – 62.5 m/s, validated the method for non-cylindrical specimens. (2) All specimens were broken into various sizes of fragments (particles). (3) The energy transferred to the transmitted bar was in a range of 0.3 – 3.4 % of input energy. (4) The translational kinetic energy of rock specimen was in a range of 0.1 – 18.9 % of input energy, while the rotational kinetic energy of rock specimen was 3.3 –5.1 % of input energy. (6) The specific input energy (input energy per unit volume of rock) varied from 0.26 to 5.06 MJ/m<sup>3</sup>. (7) The main factors influencing rock fragmentation include specific input energy, rock impedance and foliations. Larger specific input energy or smaller impedance resulted in better fragmentation, and vice versa. Foliations, especially parallel ones, made spalling occurred in most quartzite specimens as well as a few other rock specimens before they collided with the transmitted bar. Assuming that relative energy efficiency is equal to the ratio of the energy absorbed by rock to the input energy, the paper finds that the relative energy efficiency of the rock collision method is much higher than the relative energy efficiencies of dynamic rock compression, dynamic rock fracture, and ore grinding in ball mills, indicating a great potential of applying the collision method to mining industry.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"326 ","pages":"Article 111381"},"PeriodicalIF":4.7,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acoustic emission-based identification and interfacial fiber bridging and delamination damage mechanisms in twill/unidirectional composite materials 基于声发射的斜纹/单向复合材料界面纤维桥接与分层损伤机理研究

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-03 DOI: 10.1016/j.engfracmech.2025.111379

Zhipeng Yao , Ben Wang , Di Gai , Shengjie Yu , Shiyu Yang

{"title":"Acoustic emission-based identification and interfacial fiber bridging and delamination damage mechanisms in twill/unidirectional composite materials","authors":"Zhipeng Yao , Ben Wang , Di Gai , Shengjie Yu , Shiyu Yang","doi":"10.1016/j.engfracmech.2025.111379","DOIUrl":"10.1016/j.engfracmech.2025.111379","url":null,"abstract":"<div><div>Interlaminar damage in carbon fiber reinforced polymer (CFRP) laminates is a common form of damage in engineering applications, with interlaminar fracture toughness commonly used to characterize its ability to resist crack propagation. In double cantilever beam (DCB) tests of CFRP laminates, the intensity of fiber bridging phenomena depends on the structure and orientation of fibers on either side of the delamination. To further elucidate the mechanism of fiber bridging phenomena in delamination crack propagation, DCB specimens with pre-fabricated cracks on either side composed of twill-weave (TW) fiber layers and unidirectional (UD) fiber layers were employed to study the delamination behavior of two fiber orientations. An unsupervised k-means clustering algorithm was employed for identifying damage modes from acoustic emission(AE) signals under different failure modes, and the relationship between the interlaminar fracture toughness of the specimens and interlaminar micro-damage was analyzed. Scanning electron microscopy (SEM) was used to reveal the micro-mechanisms of damage. The results indicate that the trend of interlaminar fracture toughness of the specimens is positively correlated with the peak amplitude of AE signals. Cluster analysis categorizes AE signals into matrix damage (including matrix cracking, interface debonding, and fiber pull-out) and fiber bridging damage (fiber breakage). Cluster analysis revealed that differences in interlaminar fracture toughness among interfaces stem from varying matrix fracture modes. Acoustic AE technology was used to distinguish the lamination mechanism between specimens from micro and macro perspectives, which provides an important basis for determining the mechanical properties of composite laminates.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"326 ","pages":"Article 111379"},"PeriodicalIF":4.7,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental characterization of cohesive laws for mode-II interlaminar fracture in geometrically scaled composites using through-thickness deformation analysis 基于全厚度变形分析的几何尺度复合材料ii型层间断裂黏聚规律实验表征

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-03 DOI: 10.1016/j.engfracmech.2025.111361

Han-Gyu Kim , Ryan Howe , Richard Wiebe , S. Michael Spottswood , Patrick J. O’Hara , Marco Salviato

{"title":"Experimental characterization of cohesive laws for mode-II interlaminar fracture in geometrically scaled composites using through-thickness deformation analysis","authors":"Han-Gyu Kim , Ryan Howe , Richard Wiebe , S. Michael Spottswood , Patrick J. O’Hara , Marco Salviato","doi":"10.1016/j.engfracmech.2025.111361","DOIUrl":"10.1016/j.engfracmech.2025.111361","url":null,"abstract":"<div><div>This work proposes an experimental framework to characterize a cohesive law for mode-II interlaminar fracture and demonstrates its implementation. For a size effect study, geometrically scaled end-notched flexure specimens were tested using microscopic and macroscopic digital image correlation (DIC) systems. The fracture energy was characterized using a compliance calibration method and Bažant’s type-II size effect law for comparison. In the proposed experimental framework, the DIC data were post-processed using three steps: coordinate transformation, curve fitting, and through-thickness deformation analysis. Different magnitudes of separation values were measured from different sizes at fracture loads, implying size effect and partial development of cohesive laws. Modeling and simulations were intended to validate the proposed method and demonstrate the utilization of the experimental data. Additionally, challenges related to finding a single cohesive law for geometrically scaled specimens of a single material were exposed. A single cohesive law for the scaled specimens was developed and proposed as a material property of the specimen material. The fracture energy of the single law was smaller than the energy obtained from the size effect analysis, while the sizes of fracture process zones at fracture loads were smaller than the experimental measurements. However, the global fracture behaviors of the models showed good agreement with the experimental data of the mid-size specimen while showing reasonable agreement with the other sizes. Furthermore, the single law successfully captured local fracture behaviors by showing partial cohesive zone development at the fracture loads and matching the microscopic measurement of the separation values.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"326 ","pages":"Article 111361"},"PeriodicalIF":4.7,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of effectiveness of toroidal ring crack arrestors for running ductile fracture control in CO2 pipelines using fluid-structure interaction analyses 基于流固耦合分析的环向裂纹止裂器对CO2管道运行韧性断裂控制的有效性研究

IF 4.7 2区工程技术

Engineering Fracture Mechanics Pub Date : 2025-07-03 DOI: 10.1016/j.engfracmech.2025.111380

Jinglue Hu , Wenxing Zhou , Jidong Kang

{"title":"Investigation of effectiveness of toroidal ring crack arrestors for running ductile fracture control in CO2 pipelines using fluid-structure interaction analyses","authors":"Jinglue Hu , Wenxing Zhou , Jidong Kang","doi":"10.1016/j.engfracmech.2025.111380","DOIUrl":"10.1016/j.engfracmech.2025.111380","url":null,"abstract":"<div><div>The increasing demand for carbon capture, utilization, and storage to mitigate greenhouse gas emissions has led to greater interest in the safe transportation of carbon dioxide (CO<sub>2</sub>) through pipelines. CO<sub>2</sub> is preferably transported in its dense or supercritical phase; however, pipelines operating in these conditions are particularly susceptible to running ductile fracture (RDF). This study aims to assess the effectiveness of toroidal ring crack arrestors for preventing RDF in dense-phase and supercritical CO<sub>2</sub> pipelines by carrying out three-dimensional the fluid–structure interaction analyses to simulate the RDF process. The coupled Eulerian-Lagrangian approach is employed to capture the interaction between crack propagation and CO<sub>2</sub> decompression that is assumed to be isentropic and in homogenous equilibrium conditions. The effects of the temperature drop resulting from the decompression on the fracture toughness of the pipe steel are ignored. Parametric analyses are performed on a hypothetical CO<sub>2</sub> pipeline with representative pipe attributes and operating conditions. To focus on the effects of geometric parameters for the toroidal ring on the crack arrest effectiveness, the rings are modelled as rigid bodies as a reasonable first approximation. The analysis results provide insights into how key design parameters such as the ring spacing and radial clearance influence the effectiveness of toroidal ring arrestors and guidance on optimizing the design of toroidal ring arrestors. This study demonstrates the feasibility and advantages of using advanced fluid–structure interaction model to evaluate and enhance the structural integrity of CO<sub>2</sub> pipelines.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"326 ","pages":"Article 111380"},"PeriodicalIF":4.7,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0