International Journal of Fracture最新文献_第10页

Peridynamic model for chloride diffusion–reaction in concrete reflecting mesostructure characteristic 反映中观结构特征的混凝土中氯离子扩散反应的周动力模型

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-02-16 DOI: 10.1007/s10704-023-00760-5

Xuandong Chen, Xin Gu, Panyong Liu, Jiamin Zhang, Xiaozhou Xia, Qing Zhang

{"title":"Peridynamic model for chloride diffusion–reaction in concrete reflecting mesostructure characteristic","authors":"Xuandong Chen, Xin Gu, Panyong Liu, Jiamin Zhang, Xiaozhou Xia, Qing Zhang","doi":"10.1007/s10704-023-00760-5","DOIUrl":"10.1007/s10704-023-00760-5","url":null,"abstract":"<div><p>Efficient and accurate prediction of chloride concentration distribution in concrete is extremely important for evaluating the durability of reinforced concrete (RC) structures in the coastal region. A peridynamic (PD) framework for chloride diffusion–reaction is proposed to explore the mechanisms of the long-term chloride ingress in concrete. Specifically, the improved intermediately homogenized peridynamic (IH-PD) method is substituted for the solid modeling method of the interface transition zone (ITZ), with the consideration of the mesoscopic characteristics of concrete and great computational efficiency. In addition, considering the effect of concrete mesostructure, an effective chloride diffusion coefficient is constructed based on the Mori–Tanaka method, in which the proportion of various bonds is determined by the statistics. To verify the reliability of the proposed model, the numerical results are compared with the third-party experiments data. From the results, the randomness of concrete mesostructure leads to the randomness of chloride concentration at the same ingress depth, following the normal distribution. Moreover, the chloride diffusion performance which reflects the speed of chloride diffusion is significantly improved with the increase in the water-cement ratio. Noteworthily, the ITZ thickness can be appropriately increased without affecting the reliability of the results.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"245 3","pages":"121 - 135"},"PeriodicalIF":2.2,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139773604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

The adaptive coupling of dual-horizon peridynamic element and finite element for the progressive failure of materials 材料渐进失效的双水平围动力学元素与有限元的自适应耦合

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-02-16 DOI: 10.1007/s10704-023-00758-z

Yehui Bie, Kuanjie Ding, Zhifu Zhao, Yueguang Wei

{"title":"The adaptive coupling of dual-horizon peridynamic element and finite element for the progressive failure of materials","authors":"Yehui Bie, Kuanjie Ding, Zhifu Zhao, Yueguang Wei","doi":"10.1007/s10704-023-00758-z","DOIUrl":"10.1007/s10704-023-00758-z","url":null,"abstract":"<div><p>The peridynamic correspondence model (PDCM) provides the stress–strain relation that can introduce many classical constitutive models, however, the high computational consumption and zero-energy mode of PDCM certainly limit its further application to practical engineering crack problems. To solve these limitations and exploit the advantage of PDCM, we propose a simple and effective method that adaptively couples dual-horizon peridynamic element (DH-PDE) with finite element (FE) to simulate the quasi-static fracture problems. To this end, a stabilized dual-horizon peridynamic element for DH-PDCM is firstly developed that the peridynamic strain matrices for the bond and material point are constructed respectively. The nonlocal ordinary and correctional peridynamic element stiffness matrices are derived in detail and calculated by the proposed dual-assembly algorithm. Subsequently, a unified variational weak form of this adaptive coupling of DH-PDE and FE is proposed based on the convergence of peridynamics to the classical model in the limit of vanishing horizon. Therefore, the integrals of the peridynamic element and finite element in this coupling method are completely decoupled in the viewpoint of numerical implementation, which makes it easier to realize the proposed adaptive coupling by switching integral element. Moreover, the proposed adaptive coupling is implemented in Abaqus/UEL to optimize the calculational efficiency and real-time visualization of calculated results, which has potential for dealing with the engineering crack problems. Two-dimensional numerical examples involving mode-I and mixed-mode crack problems are used to demonstrate the effectiveness of this adaptive coupling in addressing the quasi-static fracture of cohesive materials.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"245 1-2","pages":"89 - 114"},"PeriodicalIF":2.2,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Multi-phase-field approach to fracture demonstrating the role of solid-solid interface energy on crack propagation 多相场断裂法显示固-固界面能量对裂纹扩展的作用

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-02-15 DOI: 10.1007/s10704-024-00762-x

Hossein Jafarzadeh, Oleg Shchyglo, Ingo Steinbach

引用次数: 0

Comparison of the phase-field approach and cohesive element modeling to analyze the double cleavage drilled compression fracture test of an elastoplastic material 比较相场法和内聚元素模型，分析弹塑性材料的双劈钻孔压缩断裂试验

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-01-23 DOI: 10.1007/s10704-023-00755-2

Arnaud Coq, Julie Diani, Stella Brach

{"title":"Comparison of the phase-field approach and cohesive element modeling to analyze the double cleavage drilled compression fracture test of an elastoplastic material","authors":"Arnaud Coq, Julie Diani, Stella Brach","doi":"10.1007/s10704-023-00755-2","DOIUrl":"10.1007/s10704-023-00755-2","url":null,"abstract":"<div><p>Brittle material Mode I fracture may be characterized by the double cleavage drilled compression test. For linear elastic materials, the critical energy release rate, or fracture toughness, can be estimated simply using the linear elastic fracture mechanics. For other types of constitutive behavior, the material parameter has to be determined with numerical fracture modeling. In this paper, we have used two approaches, the phase-field damage model and the cohesive elements, in order to estimate the critical energy release rate of an elastoplastic material. Firstly, we assessed the numerical models and discussed their parameters by comparison of available data from double cleavage drilled compression experimental tests run on a silica glass. Both phase-field damage and cohesive zone models were able to reproduce fracture initiation at the observed macroscopic stress for the linear elastic material. However, the material toughness could not be predicted by the phase-field approach due to the result dependence on the model regularization parameter. Secondly, an elastoplastic methyl methacrylate polymer was submitted to the compression test in our lab. Both models were then extended for elastic-perfectly plastic materials. Crack initiation was obtained at the observed macroscopic strain for similar critical energy release rate ranges for both approaches, providing good confidence in the estimated material toughness.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"245 3","pages":"209 - 222"},"PeriodicalIF":2.2,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139558356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Modeling brittle crack propagation for varying critical load levels: a dynamic phase-field approach 不同临界载荷水平下的脆性裂纹扩展建模：动态相场方法

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2024-01-06 DOI: 10.1007/s10704-023-00754-3

Jonas Rudshaug, Tore Børvik, Odd Sture Hopperstad

{"title":"Modeling brittle crack propagation for varying critical load levels: a dynamic phase-field approach","authors":"Jonas Rudshaug, Tore Børvik, Odd Sture Hopperstad","doi":"10.1007/s10704-023-00754-3","DOIUrl":"10.1007/s10704-023-00754-3","url":null,"abstract":"<div><p>Brittle materials are known for their violent and unpredictable cracking behavior. A behavior which is dictated by a combination of microscopical material defects and the competition between the potential energy of the system and the surface energy of the material. In this study, we present the implementation of a dynamic fracture phase-field model with a new crack driving force into a commercial finite element (FE) solver and examine its behavior using three different tension-compression splits. After validating the implementation, we use the model to investigate its predictive capacity on quasi-statically loaded L-shaped soda-lime glass specimens with varying critical load levels. The dynamic fracture phase-field model predicted similar crack propagation to what was found in the literature for quasi-static and dynamic validation cases. By varying the critical load level for the L-shaped soda-lime glass specimens using the new crack driving force, the model predicted a positive correlation between the initial crack propagation speed and the critical load level, similar to what was seen in the experiments. However, the predicted crack propagation speed decreased quicker than the experimental crack propagation speed. The tension-compression splits had an impact on the predicted crack propagation paths. Overall, the proposed crack driving force used in the dynamic fracture phase-field model seems to capture the relation between critical load and initial crack propagation speed and thus enables crack predictions for specimens of varying strength.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"245 1-2","pages":"57 - 73"},"PeriodicalIF":2.2,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10704-023-00754-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139375626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An analysis of interfacial debonding in beaded fiber composites 珠状纤维复合材料界面脱粘分析

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2023-12-22 DOI: 10.1007/s10704-023-00753-4

Min Xu, H. Daniel Wagner, Bingbing An

{"title":"An analysis of interfacial debonding in beaded fiber composites","authors":"Min Xu, H. Daniel Wagner, Bingbing An","doi":"10.1007/s10704-023-00753-4","DOIUrl":"10.1007/s10704-023-00753-4","url":null,"abstract":"<div><p>Intermittent beading is a novel design that holds great potential for simultaneous improvement of strength and toughness of composites. Despite the progress in fabrication of beaded fiber composites, the mechanisms of fracture in such composites are largely unknown. In this study, calculations are carried out for interfacial debonding in a beaded fiber composite subjected to tensile loading. The post-yield strain softening followed by strain hardening of polymer matrix, and debonding of the fiber-bead, bead-matrix and fiber-matrix interfaces are accounted for in the numerical analyses. It is found that interfacial debonding can activate plastic deformation in the bead and polymer matrix, contributing to toughening of the beaded fiber composite. We have identified that the bead-matrix interfacial debonding is the major mechanism controlling plastic deformation in the matrix. The low cohesive strength of the bead-matrix interface plays a role in suppressing development of shear bands in the polymer matrix, enhancing plastic dissipation of the composite. The high toughness of the bead-matrix interface enables large plastic zone in the matrix, promoting plastic dissipation. For the fiber-bead interface, there is an increase in plastic dissipation of the composite with decreasing cohesive strength, while high interface toughness can amplify plastic dissipation. In addition, we reveal that weak fiber-matrix interface is capable of spreading plastic deformation in the matrix, increasing plastic dissipation of the composite. The findings of this study can shed new light on the fracture mechanisms of beaded fiber composites.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"245 3","pages":"195 - 208"},"PeriodicalIF":2.2,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138945323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Elastic crack-tip field in hydride forming metals under hydrogen chemical equilibrium 氢化学平衡下氢化物形成金属中的弹性裂纹尖端场

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2023-12-14 DOI: 10.1007/s10704-023-00752-5

A. G. Varias

引用次数: 0

Energy release rate of a mode-I crack in pure shear specimens subjected to large deformation 大变形纯剪切试样中ⅰ型裂纹的能量释放率

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2023-12-01 DOI: 10.1007/s10704-023-00751-6

Bangguo Zhu, Jikun Wang, Alan T. Zehnder, Chung-Yuen Hui

{"title":"Energy release rate of a mode-I crack in pure shear specimens subjected to large deformation","authors":"Bangguo Zhu, Jikun Wang, Alan T. Zehnder, Chung-Yuen Hui","doi":"10.1007/s10704-023-00751-6","DOIUrl":"10.1007/s10704-023-00751-6","url":null,"abstract":"<div><p>The Pure Shear (PS) crack specimen is widely employed to assess the fracture toughness of soft elastic materials. It serves as a valuable tool for investigating the behavior of crack growth in a steady-state manner following crack initiation. One of its advantages lies in the fact that the energy release rate (<i>J</i>) remains approximately constant for sufficiently long cracks, independent of crack length. Additionally, the PS specimen facilitates the easy evaluation of <i>J</i> for long cracks by means of a tension test conducted on an uncracked sample. However, the lack of a published expression for short cracks currently restricts the usefulness of this specimen. To overcome this limitation, we conducted a series of finite element (FE) simulations utilizing three different constitutive models, namely the neo-Hookean (NH), Arruda-Boyce (AB), and Mooney-Rivlin (MR) models. Our finite element analysis (FEA) encompassed practical crack lengths and strain levels. The results revealed that under a fixed applied displacement, the energy release rate (<i>J</i>) monotonically increases with the crack length for short cracks, reaches a steady-state value when the crack length exceeds the height of the specimen, and subsequently decreases as the crack approaches the end of the specimen. Drawing from these findings, we propose a simple closed-form expression for <i>J</i> that can be applied to most hyper-elastic models and is suitable for all practical crack lengths, particularly short cracks.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"245 3","pages":"171 - 182"},"PeriodicalIF":2.2,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138510171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 node-splitting lattice spring model coupled with a J-integral formulation as a fracture criterion 以j积分公式作为断裂准则的节点分裂点阵弹簧模型

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2023-11-23 DOI: 10.1007/s10704-023-00749-0

Bo Ye, Espen Jettestuen, Anders Malthe-Sørenssen

引用次数: 0

Numerical investigation of impact fracture behaviors of rocks under confining pressure 围压作用下岩石冲击断裂行为的数值研究

IF 2.2 3区工程技术

International Journal of Fracture Pub Date : 2023-11-20 DOI: 10.1007/s10704-023-00747-2

Wei Gao, Jian Li, Chengyong Wang, Y. T. Feng

{"title":"Numerical investigation of impact fracture behaviors of rocks under confining pressure","authors":"Wei Gao, Jian Li, Chengyong Wang, Y. T. Feng","doi":"10.1007/s10704-023-00747-2","DOIUrl":"10.1007/s10704-023-00747-2","url":null,"abstract":"<div><p>Underground rocks in coal mining and oil exploration are usually subjected to in-situ stress and dynamic loading. In this paper, the tensile fracture behaviors of brittle rocks under coupled in-situ stress and dynamic loading are investigated numerically via the simulation of Brazilian disc (BD) tests of the modified split Hopkinson pressure bar (SHPB). To achieve this purpose, a cohesive zone model in the framework of the finite element method is used to model the cracking of the rock Brazilian disc under confining pressure. The pressure-dependent property of the rock is considered using the recently proposed bi-linear constitutive law. Dynamic Brazilian disc tests of the SHPB with two impact velocities of a striker are simulated for the rock. Comparisons between the simulated results and the reported experimental ones show a good agreement, demonstrating the accuracy and validity of the simulation models and the numerical approach. Due to the existence of holes in the rock in underground rock engineering practices, a pre-hole is inserted in the BD rock specimen in the modified SHPB tests to more realistically consider the rock fracture. The effects of the in-situ stress, the pre-hole size, and the pre-hole position on the dynamic fracture characteristics of the rock are numerically investigated using the modified SHPB test for BD rock specimen.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"245 1-2","pages":"37 - 56"},"PeriodicalIF":2.2,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138510178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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