Theoretical and Applied Fracture Mechanics最新文献

{"title":"An extended coupling method integrating NURBS and meshfree RPIM for accurate 2D crack modeling","authors":"Mengqiu Zhang ,&nbsp;Ahmad Razin Zainal Abidin ,&nbsp;Cher Siang Tan","doi":"10.1016/j.tafmec.2025.105007","DOIUrl":"10.1016/j.tafmec.2025.105007","url":null,"abstract":"<div><div>Accurately modeling cracks in two-dimensional (2D) solids with complex geometries remains a significant challenge in fracture mechanics. Traditional coupling methods for crack analysis often require complex domain partitioning and boundary condition imposition, limiting computational efficiency. Recently, a novel method known as N-RPIM, which integrates non-uniform rational B-splines (NURBS) and radial point interpolation (RPIM), has demonstrated promise for plane stress simulations in web structures with openings, where the presence of curved boundaries highlights its advantages in geometric representation and numerical accuracy. However, its application to crack analysis remains unexplored, necessitating further development to capture crack behaviors. Building on this framework, this paper develops an extended N-RPIM method (XN-RPIM), incorporating the partition-of-unity technique to accurately model cracks in 2D cases of elastic solids. NURBS basis functions represent domain shapes with precision, while RPIM approximates the displacement field. The Heaviside and branch functions capture surface discontinuities and crack tip singularities, respectively. Unlike existing coupling approaches, the proposed method eliminates the need for subdomain divisions and additional boundary conditions, streamlining the simulation process. Benchmark studies on mixed-mode cracks and intricate configurations demonstrate that XN-RPIM can achieve errors of the stress intensity factor (SIF) below 1% while requiring significantly fewer nodes than the extended finite element method (XFEM) in the best-performing cases. These findings highlight the potential of XN-RPIM as a robust and efficient tool for advanced crack analysis.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105007"},"PeriodicalIF":5.0,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242706","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}

{"title":"Post-fire fracture performance of ultra high-performance concrete: Mechanical properties, microstructure characterization and unified formulation","authors":"Tan Wang ,&nbsp;Hongxuan Tu ,&nbsp;LiHua Xu ,&nbsp;Yin Chi ,&nbsp;Shunan Wang ,&nbsp;Le Huang ,&nbsp;Min Yu","doi":"10.1016/j.tafmec.2025.105036","DOIUrl":"10.1016/j.tafmec.2025.105036","url":null,"abstract":"<div><div>To investigate the post-fire fracture performance of Ultra-High Performance Concrete (UHPC), three-point bending tests were conducted on precast notched UHPC beams exposed to elevated temperatures. The influence of temperature level, steel fiber content, and coarse aggregate content on microscopic morphology, fracture surface features, load-crack mouth opening displacement (CMOD) curves were systematically analyzed. Furthermore, the high-temperature degradation mechanisms of UHPC were elucidated through Scanning Electron Microscopy (SEM), Mercury Intrusion Porosimetry (MIP), and Thermogravimetric Analysis (TGA). The results revealed that high temperatures significantly reduced the peak load capacities and fracture energy of UHPC, with decreases of 15.9%, 34.4%, 55.7%, and 74.7% in peak load and 16.9%, 42.0%, 73.3%, and 91.9% in fracture energy at 200, 400, 600, and 800 ℃, respectively. Incorporating steel fibers enhanced crack stability, toughness, and fracture energy, with these benefits becoming more pronounced at higher fiber volume fractions. At room temperature and after exposure to 800 ℃, the addition of 2% steel fibers improved the initial fracture toughness by 51.5% and 13.9%, respectively. Additionally, while the inclusion of coarse aggregates initially enhanced peak load and fracture energy, their positive effect diminishes beyond 15% volume fraction. Finally, a unified formula for the fracture performance index was proposed to characterize the effects of high temperature, steel fiber volume fraction, and coarse aggregate volume fraction. This study provides valuable insights for the design, construction, and material optimization of UHPC structures, contributing to the enhancement of safety and durability under elevated temperature conditions.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105036"},"PeriodicalIF":5.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242696","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}

{"title":"Crack initiation behavior in grouted fractured mudstone: Insights from laboratory tests and DEM simulation","authors":"Huaicen Yuan ,&nbsp;Xiaohua Bao ,&nbsp;Jun Shen ,&nbsp;Xiangsheng Chen ,&nbsp;Cong Zhang ,&nbsp;Wei Tang ,&nbsp;Pengliang Dang ,&nbsp;Hongzhi Cui","doi":"10.1016/j.tafmec.2025.105038","DOIUrl":"10.1016/j.tafmec.2025.105038","url":null,"abstract":"<div><div>Fractured mudstone is prone to structural failure due to weak cementation, low strength, and fissured texture. This study investigated the mechanical behavior and crack evolution of grouted fractured mudstone using uniaxial compression test (UCT), direct shear test (DST), and discrete element method (DEM) simulation. Results indicated that silica-sol grouted specimens under UCT exhibited a higher compressive strength and ductility, with cracks deviating from both sides of the prefabricated fracture, whereas a concentrated and stable shear band was detected in the cement-grouted specimen under the DST, thus improving resistance to the slippage on the interface. Crack evolution was strongly governed by the interaction between fracture inclination and stress state, with a larger inclination angle across the failure zone of the tested specimens. It was revealed from DEM analysis that the rupture and redistribution of strong-force chains during the late loading stage led to the stress concentration and crack penetration. Although an increase in the grouting thickness improved a load-bearing capacity, it also intensified the crack propagation, especially under the UCT. These findings deepen the micromechanical understanding of crack initiation and propagation, providing a theoretical basis for modeling and mitigating failure in grouted fractured rock.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105038"},"PeriodicalIF":5.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242697","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}

{"title":"Weight functions for opening mode stress intensity factors for double edge cracked rings using two reference configurations","authors":"Mohammed Shafeeque K.K.,&nbsp;K.V.N. Surendra","doi":"10.1016/j.tafmec.2025.105004","DOIUrl":"10.1016/j.tafmec.2025.105004","url":null,"abstract":"<div><div>Weight functions (WF) to determine the opening mode stress intensity factors (SIFs) of both inner and outer double edge cracked ring specimens are derived. Various WF forms available in the literature and two new forms are considered to arrive at the optimum form for WF of the cracked-ring specimens. The method in which only two reference loading configurations are required, is adopted for deriving the WF. Uniform and linear crack face pressures are used as the two loading configurations for which SIFs are obtained using the finite element method (FEM). An investigation is done to find the accurate WF among the considered forms by comparing their SIF predictions with those obtained from FEM. For the WF forms, error is found to increase with degree of crack-face loading in an asymptotic way. The comparison reveals that the dual form factor method of WF leads to accurate results for the two ring specimens with less than 2% error for all the polynomial degrees of crack-face pressures up to 70. The finally arrived WF is then applied to determine the SIFs of the inner as well as outer double edge cracked circular rings for various inner to outer radii subjected to diametral compression on the outer boundary and those subjected to uniform internal pressure.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105004"},"PeriodicalIF":5.0,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144230860","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}

{"title":"Investigation of fracture behaviors of asphalt mixtures with different loading rates based on acoustic emission","authors":"Weimin Song ,&nbsp;Wenlong Yan ,&nbsp;Hao Wu ,&nbsp;Yuxuan Sun ,&nbsp;Xiaobao Chen ,&nbsp;Zhiqiang Cheng","doi":"10.1016/j.tafmec.2025.105034","DOIUrl":"10.1016/j.tafmec.2025.105034","url":null,"abstract":"<div><div>This study investigated the fracture behaviors of AC10 asphalt mixture under four loading rates (0.2, 0.5, 2, and 5 mm/min) at 25 °C using semi-circular bending (SCB) tests combined with acoustic emission (AE) technology. Mechanical response − including load–displacement curves, fracture energy, elastic energy, and plastic energy − were analyzed, and damage development was evaluated through these energy parameters. AE parameters such as amplitude, count, energy, b-value, and RA-AF characteristics were utilized to characterize crack initiation, propagation, and failure modes. Results demonstrate that fracture energy exhibits a non-linear relationship with increasing loading rate, peaking at 0.5 mm/min, with post-peak fracture energy declining sharply at higher rates, indicative of enhanced brittleness. As the loading rate increased from 0.2 mm/min to 2 mm/min, damage progression accelerated based on the correlation between damage level and normalized displacement. AE amplitude distributions revealed a higher proportion of high-amplitude events (≥55 dB) at faster loading rates, reflecting intensified energy release. Cumulative count and energy curves were classified into three stages: microcrack closure, dynamic crack propagation, and failure stabilization. These trends inversely correlated with b-value dynamics: low b-values signaled macro-crack nucleation or accelerated growth, while high b-values corresponded to microcrack-dominated behavior. Both cumulative counts and energy increased significantly with loading rate. Gaussian mixture modeling (GMM) of RA-AF data identified a transition from shear to tensile cracking at higher loading rates, attributed to reduced viscoelastic deformation and accelerated brittle fracture mechanisms.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105034"},"PeriodicalIF":5.0,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205475","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}

{"title":"Experiment on progressive failure mechanism and anisotropic mechanical properties of differentially brittle-fractured sandstone under uniaxial compression","authors":"Jie Cui ,&nbsp;Chaoxin Hu ,&nbsp;Kaijian Cai ,&nbsp;Youliang Zhang ,&nbsp;Junshan Hao","doi":"10.1016/j.tafmec.2025.105024","DOIUrl":"10.1016/j.tafmec.2025.105024","url":null,"abstract":"<div><div>Excavation disturbances pose a significant threat to engineering safety due to the failure of brittle-fractured sandstones. Three types of brittle sandstone were selected to prepare fractured specimens by controlling fracture apertures (0.4 mm and 1.5 mm) and dip angles (0°∼90° at 15° intervals). Subsequently, uniaxial compression tests were conducted on these specimens, integrating acoustic emission (AE) monitoring and three-dimensional digital image correlation technology (3D-DIC), to investigate the failure modes and anisotropic characteristics of the fractured sandstones. The results indicated that as the dip angle increased, the failure mode of the fractured sandstone specimens transitioned from tensile failure to a tensile-shear mixed failure, and ultimately reverted to tensile failure. Increased sandstone brittleness and fracture aperture led to a reduction in anti-wing cracks and an increase in wing cracks, resulting in more severe failure. AE responses indicated that increasing dip angle primarily induced tensile microcracks, with a fluctuating upward trend in the <em>b</em>-value. As sandstone brittleness increased, the number of shear cracks decreased and the fluctuation range of the <em>b</em>-value narrowed, whereas increased fracture aperture led to a gradual increase in both. Notably, the minimum values of the strength, elastic modulus and brittleness of the fractured sandstones generally occurred within dip angles of 0°∼30°. Compared to intact sandstone, within this dip angle range, the maximum reduction range of the strength, elastic modulus and brittleness of the fractured sandstones were 58.2 %∼64.5 %, 28.8 %∼58.4 % and 35 %∼49 %, respectively. Furthermore, increasing sandstone brittleness exacerbated the weakening of strength and brittleness, but mitigated the reduction in elastic modulus. Under different fractured apertures, the strength weakening degree of the fractured sandstones slightly fluctuated within the dip angles of 0°∼30°. At dip angles of 45°∼90°, fractured sandstone specimens with smaller apertures exhibited less strength reduction compared to those with larger apertures. With increasing aperture, the brittleness in fractured sandstone decreased significantly. Additionally, the elastic modulus of low-brittle and middle-brittle fractured sandstones weakened more severely, whereas that of high-brittle sandstone showed a relatively smaller decrease.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105024"},"PeriodicalIF":5.0,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144231060","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}

{"title":"Elasto-viscoplastic fast Fourier transform modeling framework for assessing microstructural effects on stress intensity factors characterizing fracture toughness","authors":"Milica Letic ,&nbsp;Benjamin S. Anglin ,&nbsp;Miroslav Zecevic ,&nbsp;Ricardo A. Lebensohn ,&nbsp;Marko Knezevic","doi":"10.1016/j.tafmec.2025.105022","DOIUrl":"10.1016/j.tafmec.2025.105022","url":null,"abstract":"<div><div>A large-strain elasto-viscoplastic fast Fourier transform (LS-EVPFFT) model with non-periodic (NP) velocity-based boundary conditions is adapted to simulate the sensitivity of stress intensity factors on microstructure for 304L stainless steel. The material was characterized via electron backscattered diffraction (EBSD) serial-sectioning to obtain a measured 3-D microstructural cell to perform simulations. The NP-LS-EVPFFT model, including the simulation setup and boundary conditions, was verified using a crystal plasticity finite element (CPFE) model. To this end, the generation of meshes of notched specimens was developed, which involved creating Python scripts for mesh “cutting” in Abaqus, and Sculpt scripts in Cubit for meshing of the measured microstructural cell processed with DREAM.3D. The complexity of the mesh preparation highlighted the advantages of the FFT-based model, which circumvents the mesh generation process. Given the efficiency of the FFT-based model, statistical distribution of stress intensity factors in function of crystal orientation at the crack tip, grain structure, and crystallographic texture surrounding the crack tip were predicted. The distributions reveal about 10 % variation of stress intensity factors with microstructure with the most significant sensitivity found to be the crystal orientation at the crack tip. The methodology developed in this work is discussed as a practical simulation tool for predicting the sensitivity of stress intensity factors on microstructural variability in metallic materials.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105022"},"PeriodicalIF":5.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184492","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}

{"title":"Evaluation on VCCT-like methods in hyperelastic materials","authors":"Zicheng Shi,&nbsp;Pengshu Chen,&nbsp;Ziheng Wu,&nbsp;Yang Wang,&nbsp;Ziran Li","doi":"10.1016/j.tafmec.2025.105023","DOIUrl":"10.1016/j.tafmec.2025.105023","url":null,"abstract":"<div><div>In this study, the accuracy of Virtual Crack Closure Technique (VCCT)-like methods in calculating the Strain Energy Release Rate (SERR) of cracked hyperelastic materials is evaluated through finite element analyses. The results reveal that, when hyperelastic materials exhibit significant Large Strain Hardening (LSH) effects, the crack-tip nodal force and opening displacement demonstrate a strong nonlinear relationship, leading to reduced accuracy in the standard VCCT method. In contrast, when the LSH effect is weak, the crack-tip nodal force and opening displacement remains a nearly linear relationship, the standard VCCT method is still valid. Regarding the modified VCCT methods, the results indicate that, under significant LSH effects, there are differences in accuracy and efficiency between the two modified VCCT methods. Specifically, the TA-CCT provides higher accuracy, while M−VCCT offers better computational efficiency.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105023"},"PeriodicalIF":5.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205474","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}

{"title":"Experimental study on blasthole fracturing caused by stress waves from a cylindrical charge","authors":"Meng Ren ,&nbsp;Zhongwen Yue ,&nbsp;Jun Zhou ,&nbsp;Xu Wang ,&nbsp;Kejun Xue ,&nbsp;Peng Wang ,&nbsp;Shengnan Xu","doi":"10.1016/j.tafmec.2025.105020","DOIUrl":"10.1016/j.tafmec.2025.105020","url":null,"abstract":"<div><div>During the detonation of a cylindrical charge, the advancing detonation wave continuously alters the stress wave field. This causes dynamic changes in the surrounding stress and strain distributions. These evolving fields lead to distinct fracturing patterns around the blasthole, which are still not fully understood. To investigate this process, dynamic photoelasticity and Digital Image Correlation experiments were performed. Post-blast observations revealed numerous dense cracks along the blasthole wall. The cracks were shortest near the initiation point and became progressively longer toward the tail end of the explosive column. This pattern is linked to the evolution of stress waves during detonation. As the detonation wave advanced, new stress waves were continuously generated and superimposed on earlier ones. This led to increasing stress intensity near the detonation front. In the experiment, the detonation velocity was lower than the P-wave velocity but higher than the S-wave velocity. The P-waves propagated ahead of the detonation front and formed a fan-shaped superposition zone. The S-waves lagged behind and formed a conical zone. Photoelastic results showed that fringe order and principal stress difference increased along the detonation direction. DIC measurements confirmed that the strain also increased in this direction. The rise in stress and strain explains the progressive increase in crack length along the blasthole wall.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105020"},"PeriodicalIF":5.0,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167892","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}

{"title":"Fracture properties prediction of Ultra-High-Performance Concrete (UHPC) after High-Temperature exposure based on Meso-Scale finite element analysis and artificial neural network","authors":"Huayi Wang ,&nbsp;Jia He ,&nbsp;Ming Zhou ,&nbsp;Bingyan Wei ,&nbsp;Chao Wu ,&nbsp;Zhiyi Tang ,&nbsp;Sitian Zhang","doi":"10.1016/j.tafmec.2025.105018","DOIUrl":"10.1016/j.tafmec.2025.105018","url":null,"abstract":"<div><div>High temperature can severely weaken the mechanical properties of UHPC. As the core index for evaluating the material’s ability to resist crack propagation, the fracture property should be given more attention. Using the combination of experiments, finite-element models, and artificial neural network models is of theoretical and practical significance for understanding and predicting the fracture properties of UHPC after high-temperature exposure. In this study, two types of UHPC were first prepared. Their fracture properties were investigated after being heated from normal temperature (25 °C) to 200 °C, 400 °C and 600 °C respectively, and then naturally cooled to normal temperature. Subsequently, the matrix’s cracking phenomenon was simulated using the Cohesive Zone Model (CZM). For steel fibers, an equivalent failure model was adopted to consider the non-linear deformation relationship between the fibers and the matrix, and then a fracture model of UHPC was established after high-temperature exposure. From a quantitative perspective, the influence of the mechanical properties of the matrix and fibers after high-temperature exposure on the macroscopic fracture properties of UHPC was analyzed. Eventually, based on the experimental and finite-element simulation data, an artificial neural network model capable of predicting the fracture properties of UHPC after high-temperature exposure was constructed. The research conclusions are as follows: High-temperature exposure does not change the fracture morphology of UHPC specimens. For UHPC-containing SF fibers, the loss of strength after high-temperature exposure is slower than that of UHPC without steel fibers. High-temperature exposure remodels the original characteristics of the curve. For UHPC-containing SF fibers, the loss of fracture toughness after high-temperature exposure is slower than that of UHPC without steel fibers. SF fibers can effectively delay the crack propagation in UHPC before the peak load after high-temperature exposure. The calculation results of the UHPC fracture model after high-temperature exposure, which is established based on the CZM and equivalently considers the bond-slip between steel fibers and the matrix, are consistent with the experimental results and can accurately describe the mechanism of the change in UHPC fracture characteristics after high − temperature exposure. The explicit solution proposed based on the artificial neural network model has high accuracy in predicting the fracture properties of UHPC after high-temperature exposure. It can be an important tool for calculating fracture properties in multivariable high-temperature experiments.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"139 ","pages":"Article 105018"},"PeriodicalIF":5.0,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177836","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}