International Journal of Fracture最新文献_第2页

On small scale nonlinearity and nested crack tip fields in a neo-Hookean material 新hookean材料的小尺度非线性和嵌套裂纹尖端场

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-08-13 DOI: 10.1007/s10704-025-00880-0

Yuan Li, Brian Moran

{"title":"On small scale nonlinearity and nested crack tip fields in a neo-Hookean material","authors":"Yuan Li, Brian Moran","doi":"10.1007/s10704-025-00880-0","DOIUrl":"10.1007/s10704-025-00880-0","url":null,"abstract":"<div><p>This paper investigates the stress singularity at the crack tip in a two-dimensional Neo-Hookean hyperelastic material, with a focus on how far-field strain influences the crack tip field distribution. The study demonstrates that, under small far-field strains, the crack tip field can be generally divided into three regions: Region I—the asymptotic neo-Hookean crack tip field as <span>(rrightarrow 0)</span>; Region II—a finite-radius nonlinear neo-Hookean zone; and Region III—an outer linear elastic region. Within Region III, a subregion may still obey the asymptotic linear elastic solution when the radial distance is sufficiently small. As the far-field strain increases, both the asymptotic linear subregion and the broader linear region shrink and eventually vanish, leaving only the nonlinear zones. This multiscale structure reflects the principle of small-scale nonlinearity, wherein nonlinear effects are confined to an inner core. The inner core consists of Region I, where asymptotic neo-Hookean fields dominate, and Region II, where general nonlinear effects prevail. Initially, this inner core is nested inside Region III. At sufficiently small far-field strains, Region III itself contains an inner core that follows asymptotic linear elastic crack tip fields. As loading intensifies, Regions I and II expand, and Region III—first its asymptotic core, then the broader linear zone – .- progressively diminishes, culminating in a large-scale nonlinearity regime. We also identify and quantify the characteristic length scales over which each region exists and dominates—nonlinear fields in Regions I and II and linear elastic behavior in Region III. An important point is that at the crack tip, Region I always governs the local field, although its extent may be small under small far-field strains, making it difficult to capture in computational simulations. To address this, we introduce a rescaling method to better resolve this near-tip behavior.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"249 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10704-025-00880-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832158","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

Fracture failure assessment of ring-stiffened titanium alloy cylinder 环加筋钛合金汽缸断裂失效评价

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-08-06 DOI: 10.1007/s10704-025-00878-8

Junfeng Zhang, Yinghui Liu, Xiaoming Liu, Bowen Zhang

{"title":"Fracture failure assessment of ring-stiffened titanium alloy cylinder","authors":"Junfeng Zhang, Yinghui Liu, Xiaoming Liu, Bowen Zhang","doi":"10.1007/s10704-025-00878-8","DOIUrl":"10.1007/s10704-025-00878-8","url":null,"abstract":"<div><p>This paper presents a novel failure evaluation method for fracture instability analysis of ring-stiffened titanium alloy cylinders under hydrostatic pressure. The quantification of fracture instability behavior for a titanium alloy cylinder remains unclear. In this work, we propose a post-buckling mode analysis for fracture instability, considering the relationship between plastic strain and structural deformation. Further, a novel fracture failure criterion involving material properties and structural parameters is established, bringing the proposal of a structural failure range evaluation method for titanium alloy cylinders. By incorporating the strain rate effect into the constitutive model of the two-phase <span>(alpha +beta )</span> titanium alloy Ti-6Al-4 V, we developed a dynamic finite element model for studying the fracture instability of the titanium alloy cylinder. The theoretical results and finite element simulation results are finally verified by the collapse experiment of a titanium alloy cylinder. The findings can provide a fundamental basis for designing and service safety evaluation of titanium alloy cylinders.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"249 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142469","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

Direct tension test on large concrete specimens - Part I: Tensile strength, fracture properties and size effect 大混凝土试件的直接拉伸试验。第1部分：拉伸强度、断裂特性和尺寸效应

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-08-04 DOI: 10.1007/s10704-025-00872-0

J M Chandra Kishen, Yogesh R, Parvinder Singh

引用次数: 0

Direct tension test of large concrete specimens - Part II: Insights into micromechanical fracture of concrete through acoustic emission and digital imaging 大混凝土试件的直接拉伸试验。第2部分：通过声发射和数字成像对混凝土微力学断裂的洞察

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-08-04 DOI: 10.1007/s10704-025-00873-z

R. Yogesh, J. M. Chandra Kishen

引用次数: 0

Fracture characteristics of concrete under biaxial tension–tension loading revealed by a gap tensile test: a numerical study 通过间隙拉伸试验揭示混凝土在双轴拉-拉荷载作用下的断裂特征：数值研究

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-08-04 DOI: 10.1007/s10704-025-00864-0

Peizhi Huang, Longbang Qing

{"title":"Fracture characteristics of concrete under biaxial tension–tension loading revealed by a gap tensile test: a numerical study","authors":"Peizhi Huang, Longbang Qing","doi":"10.1007/s10704-025-00864-0","DOIUrl":"10.1007/s10704-025-00864-0","url":null,"abstract":"<div><p>In practical projects, concrete members are often subjected to multiple axial stress states, and the actual fracture process is more complex. This study utilizes a novel gap tensile test method and two-dimensional random circular aggregate mesoscopic numerical simulation to investigate notched concrete fracture characteristics. On the basis of Bažant's Type II size effect law (SEL) and linear elastic fracture mechanics (LEFM), fracture parameters such as fracture energy, notch tensile strength, and fracture toughness of concrete under biaxial tensile stress were obtained. The results indicate, compared with uniaxial loading, that crack–parallel tensile stress significantly affects the key fracture parameters of concrete. As the crack–parallel tensile stress increases, the peak fracture load of all the concrete samples tend to monotonically decrease. Compared with that when the normalized crack–parallel tensile stress η = 0, the peak load decreases by approximately 5, 20, and 40% when η is 0.19, 0.38, and 0.57, respectively, for different specimen dimensions. When the normalized crack–parallel stress increases to 0.57, the fracture energy, fracture toughness, and notch tensile strength decrease by approximately 30–80%. The crack–parallel tensile stress induces predamage in the weak interfacial transition zone (ITZ) of the concrete, leading to a reduction in the load-bearing capacity. Likewise, it can be expected that this degradation effect will be even more severe in low-strength concrete.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"249 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142048","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

Competition between Arbitrarily Oriented Tunnel Cracks and Delamination 任意取向隧道裂缝与脱层的竞争

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-07-31 DOI: 10.1007/s10704-025-00870-2

Leon Herrmann, Lars P. Mikkelsen, Brian N. Legarth, Christian F. Niordson

{"title":"Competition between Arbitrarily Oriented Tunnel Cracks and Delamination","authors":"Leon Herrmann, Lars P. Mikkelsen, Brian N. Legarth, Christian F. Niordson","doi":"10.1007/s10704-025-00870-2","DOIUrl":"10.1007/s10704-025-00870-2","url":null,"abstract":"<div><p>We propose a method for quantifying the competition between tunnel and delamination cracking in laminates. Based on the analytical relation between the compliance derivative and the energy release rate, which we refer to as the compliance method, the competition between the two damage mechanisms is investigated based on compliance maps that may be precomputed, thus providing an efficient tool for predicting damage development in laminates without ad hoc fracture simulations. Tunnel and delamination cracking in an off-axis layer, much thinner than the load-carrying layers of a laminate, are used as an example to illustrate the proposed methodology. However, the compliance method is generalizable to any parameterizable cracking mechanism. The cracks are simulated in a specialized two-dimensional off-axis finite element framework, which fully captures the three-dimensional solution. The method is validated against the energy balance method for tunneling cracks and the virtual crack closure technique for delamination cracks. The method has great potential in the context of nondestructive testing, where future damage states can be predicted from precomputed or experimentally determined compliance maps, thus reducing computational and experimental costs.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"249 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10704-025-00870-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145620","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

Influence of partial separation between rock specimen and loading device on determination of Mode II fracture toughness by shear-box test 岩石试样与加载装置部分分离对剪切箱试验测定II型断裂韧性的影响

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-07-29 DOI: 10.1007/s10704-025-00876-w

Huai-Zhong Liu, Wan-Xi Liang, Hong-Qiang Xie, Li Zhuo, Ming-Li Xiao, Jiang-Da He

{"title":"Influence of partial separation between rock specimen and loading device on determination of Mode II fracture toughness by shear-box test","authors":"Huai-Zhong Liu, Wan-Xi Liang, Hong-Qiang Xie, Li Zhuo, Ming-Li Xiao, Jiang-Da He","doi":"10.1007/s10704-025-00876-w","DOIUrl":"10.1007/s10704-025-00876-w","url":null,"abstract":"<div><p>Shear-box loading could partially separate rock specimen and loading device to keep moment balance, but the influence of the partial separation has not been considered in determining Mode II fracture toughness. In this study, the finite element method was employed to analyze the separation states between rock specimen and loading device in the shear-box tests with various loading angles, and the influences of the separation state on the stress intensity factors and Mode II fracture toughness were investigated by recalibrating the Mode I and Mode II dimensionless shape factors. The results indicate that the separated length increases as the initial crack length or the loading angle increases. If the separation state is not considered in the mechanical analysis, the average relative errors of the resulted Mode I and Mode II stress intensity factors are about 21.66% and 11.06%, and the relative errors of the Mode II fracture toughness determined by the Mohr–Coulomb fracture criterion are greater than 9.3%. Therefore, the influence of the separation state between rock specimen and loading device cannot be ignored in the fracture analysis of the shear-box test.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"249 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145641","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

Formation mechanism of two different crack surfaces in a median crack formed by scribing wheel 划痕轮形成中间裂纹中两种不同裂纹面形成机理

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-07-25 DOI: 10.1007/s10704-025-00871-1

Kumiko Murakami, Souta Matsusaka, Sho Itoh, Hirofumi Hidai, Mitsuru Kitaichi

{"title":"Formation mechanism of two different crack surfaces in a median crack formed by scribing wheel","authors":"Kumiko Murakami, Souta Matsusaka, Sho Itoh, Hirofumi Hidai, Mitsuru Kitaichi","doi":"10.1007/s10704-025-00871-1","DOIUrl":"10.1007/s10704-025-00871-1","url":null,"abstract":"<div><p>Two types of crack appearances may be observed in a median crack formed by scribing wheels. A cracked surface with a striped pattern and smooth cracked surface are formed, and a distinct crack-arrest line is formed at the boundary between them. This study explored the mechanisms that control changes in crack surfaces. The median crack caused by wheel scribing propagated within a symmetric stress field composed of axial and shear stresses. Numerical analysis revealed that the direction of the shear stress changed in regions that formed cracks with stripe patterns and smooth cracks. Depending on the combination of the crack propagation direction and symmetry shear stress direction, the crack propagated toward or deviated from the symmetry plane. These crack-propagation characteristics caused differences in the appearance of the crack surface. The existence of an area behind the scribing wheel where the crack temporarily stopped was predicted by estimating the crack behavior based on the stress intensity factors. This temporary crack stop was the cause of the distinct crack arrest lines. This study suggests that crack propagation behavior and surface appearance of cracks can be controlled by generating a symmetrical shear stress field in an appropriate direction.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"249 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10704-025-00871-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145117","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

A semi-empirical model for fracture energy evaluation of a Ni2MnGa magnetic shape memory alloy Ni2MnGa磁性形状记忆合金断裂能评价的半经验模型

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-07-24 DOI: 10.1007/s10704-025-00875-x

Glen J. D’Silva, Constantin Ciocanel

{"title":"A semi-empirical model for fracture energy evaluation of a Ni2MnGa magnetic shape memory alloy","authors":"Glen J. D’Silva, Constantin Ciocanel","doi":"10.1007/s10704-025-00875-x","DOIUrl":"10.1007/s10704-025-00875-x","url":null,"abstract":"<div><p>Ni<sub>2</sub>MnGa magnetic shape memory alloys (MSMAs) experience the shape memory effect due to magnetic field-induced or mechanical stress-induced microstructure reorientation. However, crack initiation and propagation, influenced by the evolving twin microstructure under coupled magneto-mechanical loading, can significantly hamper its function in applications. This study presents a semi-empirical approach to evaluate fracture toughness and fracture energy in Ni<sub>2</sub>MnGa using Vickers microindentation. An improved analytical expression is proposed, extending the classical indentation-based fracture model to incorporate magneto-mechanical effects and microstructural evolution through a stress and field dependent exponential term. Experimental results confirm that the transverse magnetic field facilitates crack growth, decreasing the fracture energy, while axial compressive stress impedes crack growth, increasing the fracture energy of the alloy. The proposed empirical relationship provides configuration-specific fracture energy values for the alloy and contributes to identifying loading conditions least conducive to fracture initiation and growth in MSMAs.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"249 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144711","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

Application of the coupled criterion to interface crack growth in the end-notched flexure test considering friction between the crack faces 考虑端面摩擦的缺口弯曲界面裂纹扩展耦合准则的应用

IF 2.5 3区工程技术

International Journal of Fracture Pub Date : 2025-07-23 DOI: 10.1007/s10704-025-00866-y

María A. Herrera-Garrido, Vladislav Mantič, Dominique Leguillon

{"title":"Application of the coupled criterion to interface crack growth in the end-notched flexure test considering friction between the crack faces","authors":"María A. Herrera-Garrido, Vladislav Mantič, Dominique Leguillon","doi":"10.1007/s10704-025-00866-y","DOIUrl":"10.1007/s10704-025-00866-y","url":null,"abstract":"<div><p>A novel computational analysis is developed to model mode II fracture of a bimaterial specimen in an End Notched Flexure test considering frictional sliding contact between the crack faces. In the Comninou contact model of interface cracks, the frictional contact zone at the tip of an interface crack between dissimilar linear elastic materials entails a stress singularity, which is weaker than the square root singularity. This weak singularity results in a zero Energy Release Rate (ERR) <span>(G_{II}=0)</span> in such cracks. Therefore, the classical Griffith criterion cannot be used to predict crack growth in this case. To address this challenging issue, a new approach based on the Coupled Criterion (CC) introduced by Leguillon (Eur. J. Mech. A/Solids 21, 61-72, 2002), which adopts the Finite Fracture Mechanics (FFM) hypothesis proposed by Hashin (J. Mech. Phys. Solids, 44, 1129-1145, 1996), is developed. The CC is satisfied when both the stress and incremental energy criteria are satisfied simultaneously. A novel CC implementation is required to address the nonlinearity caused by the frictional contact between the interface crack faces, particularly the frictional dissipation of energy during the growth of such interface cracks. The methodology developed involves Finite Element Analysis (FEA) to compute shear stress and relative displacements along the crack path, the change of the potential energy and the energy dissipated by friction. Finally, the implemented CC provides the critical load and finite crack advance at the initiation of crack propagation. The numerical study presented considers various combinations of isotropic materials and friction coefficients.</p></div>","PeriodicalId":590,"journal":{"name":"International Journal of Fracture","volume":"249 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10704-025-00866-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144443","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