International Journal of Damage Mechanics最新文献_第5页

In-plane shear and transverse damage evolution modeling of carbon-fiber-reinforced plastic laminates based on transverse cracking 基于横向开裂的碳纤维增强塑料层合板面内剪切与横向损伤演化模型

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-25 DOI: 10.1177/10567895261481308

Masahito Ueda, Haiya Yang, Yuki Sekiguchi, Naruki Ichihara, Wataru Iwase, Tetsuya Matsuda, Naoki Morita, Ryoma Aoki, Tomohiro Yokozeki

{"title":"In-plane shear and transverse damage evolution modeling of carbon-fiber-reinforced plastic laminates based on transverse cracking","authors":"Masahito Ueda, Haiya Yang, Yuki Sekiguchi, Naruki Ichihara, Wataru Iwase, Tetsuya Matsuda, Naoki Morita, Ryoma Aoki, Tomohiro Yokozeki","doi":"10.1177/10567895261481308","DOIUrl":"https://doi.org/10.1177/10567895261481308","url":null,"abstract":"A micromechanics-based simplification was introduced into the continuum damage mechanics (CDM) method for carbon-fiber-reinforced plastics (CFRPs) to reduce the number of tests required to identify the evolution of in-plane shear and transverse damage. The energy release rate associated with transverse cracking was also introduced as an independent thermodynamic force to characterize both damage evolutions. The evolution of in-plane shear damage was obtained from incremental cyclic tensile tests on ±45° laminates and analytically converted into the evolution of transverse crack density. The transverse crack density was then used to characterize the evolution of transverse damage. Three distinct analytical models were employed to correlate transverse crack density with in-plane shear and transverse damage, and their efficiency was compared. The proposed method enabled the simultaneous measurement of in-plane shear and transverse damage evolution solely from incremental cyclic tensile tests on ±45° laminates. Furthermore, the results showed that the energy release rate associated with transverse cracking effectively governed the evolution of both in-plane shear and transverse damage in CFRPs.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"275 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815512","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

Dielectric breakdown behavior of unidirectional carbon fiber reinforced composites with different fiber volume fractions 不同纤维体积分数单向碳纤维增强复合材料的介电击穿行为

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-24 DOI: 10.1177/10567895261480427

Sheng Liu, Bohong Gu, Baozhong Sun

{"title":"Dielectric breakdown behavior of unidirectional carbon fiber reinforced composites with different fiber volume fractions","authors":"Sheng Liu, Bohong Gu, Baozhong Sun","doi":"10.1177/10567895261480427","DOIUrl":"https://doi.org/10.1177/10567895261480427","url":null,"abstract":"The dielectric breakdown damage of carbon fiber reinforced polymers is an important factor affecting its structural safety during application in the high electric field. This paper investigates the dielectric breakdown behavior of unidirectional carbon fiber reinforced composites with different fiber volume fractions and yarn distributions. Comparing the experimental testing, finite element analysis, and equivalent analytical model, the dielectric breakdown behaviors are elucidated. The results reveal that dielectric breakdown voltage decreased by more than 50% as the carbon fibers distributed to the surface densely. The electric field became more concentrated after the surface resin breakdown, which would weaken the breakdown strength of the composite. Increasing fiber volume fraction from 7.2% to 56.6% leads to an order of magnitude decrease in the dielectric breakdown voltage (from 3.07 to 0.35 kV). The dielectric breakdown voltage shows a nonlinear decreasing with the increasing fiber volume fraction, which is governed by the spatial evolution of localized electric field enhancements induced by carbon fibers. This study is meaningful for the dielectric properties design of carbon fiber composites under high electric fields.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"23 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148809899","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

Study on structural damage identification based on two-dimensional images and improved convolutional neural networks 基于二维图像和改进卷积神经网络的结构损伤识别研究

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-24 DOI: 10.1177/10567895261478975

Yumin He, Yide Chen, Dan Luo, Li Wang, Yao Li, Xiyang Dai, Nan Hu, Xiaowei Lin, Xue Deng

{"title":"Study on structural damage identification based on two-dimensional images and improved convolutional neural networks","authors":"Yumin He, Yide Chen, Dan Luo, Li Wang, Yao Li, Xiyang Dai, Nan Hu, Xiaowei Lin, Xue Deng","doi":"10.1177/10567895261478975","DOIUrl":"https://doi.org/10.1177/10567895261478975","url":null,"abstract":"To reduce the cost of structural damage detection, reduce the number of measurement points and samples, and address the issues of low recognition accuracy, weak noise robustness, and poor reliability in traditional deep learning models in the field of structural damage identification. This paper proposes a structural damage identification method that combines a convolutional neural network incorporating the SE attention mechanism and a frequency domain grayscale image (FDGSI). Firstly, a finite element model of a slender beam is established, and vibration signals containing damaged information are collected. Numerical encoding is used to convert the vibration signals into grayscale images (GSIs) using a two-dimensional discrete Fourier transform (2D-DFT), which transform the GSIs from the spatial domain to the frequency domain. Secondly, the SE-CNN and test models are built, and structural damage identification studies are conducted on the datasets by combining different models. The effects of noise data and cross-point data are also analyzed. Finally, the proposed model was validated using the long steel beam dataset and the grandstand simulator dataset from prior studies. The study results show that the model achieved over 99.5% recognition accuracy in the original data of three datasets. In identifying noise data, it achieved recognition accuracies of 99.10%, 98.9%, and over 99%, respectively. In identifying cross-point data, recognition accuracy is achieved at 97.60%, 96.26%, and 99.09%, respectively. These results demonstrate that the proposed method has specific generalization, practicality, and noise-resistant robustness.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"69 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148809963","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

Dynamic mechanical performance of the concentrated solution sludge solidified by ground-granulated blast-furnace slag and municipal solid waste incineration fly ash geopolymer 高炉磨粒渣与城市生活垃圾焚烧粉煤灰地聚合物固化浓溶液污泥的动态力学性能

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-24 DOI: 10.1177/10567895261478691

Deluan Feng, Yanzhe Gu, Junsheng Zheng, Shihua Liang

{"title":"Dynamic mechanical performance of the concentrated solution sludge solidified by ground-granulated blast-furnace slag and municipal solid waste incineration fly ash geopolymer","authors":"Deluan Feng, Yanzhe Gu, Junsheng Zheng, Shihua Liang","doi":"10.1177/10567895261478691","DOIUrl":"https://doi.org/10.1177/10567895261478691","url":null,"abstract":"A comprehensive understanding of the dynamic mechanical response of alkali-activated ground granulated blast furnace slag (GGBS) / municipal solid waste incineration fly ash (MSWI FA) solidified concentrated solution sludge (CSS) is of great significance for its engineering applications under different strain rate conditions. Unconfined compression strength (UCS) and split Hopkinson pressure bar tests were conducted on the solidified CSS to determine their static and dynamic strength. Moreover, XRD, FTIR, SEM, TGA, CT, MAS/NMR tests, and concentration tests of heavy metals and polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs) were carried out to determine the hydration products, microstructure, geopolymer gel molecular structure, and contaminant immobilization effect of solidified CSS, thereby clarifying the solidification mechanism of alkali-activated GGBS/MSWI FA on the CSS from molecular scale to engineering scale. The results identify 15% MSWI FA as the optimum content for solidified CSS, corresponding to a 28-day UCS of 17.82 MPa. The dynamic strengths/dynamic increase factors (DIF) of solidified CSS with 15% and 20% MSWI FA are 17.68 MPa/1.0 and 19.39 MPa/3.2, respectively. The geopolymer hydration products are mainly geopolymeric gels and ettringite, with the formation of Friedel's salt. The geopolymeric gels are C-A-S-H, N-C-A-S-H and N-A-S-H. Excessive MSWI FA inhibits the formation of N-A-S-H and causes superfluous residual MSWI FA particles and closed pores in the solidified CSS, which is beneficial for inhibiting stress concentration and crack propagation, enhancing energy dissipation and improving the dynamic strength. Research findings of this study advance the resource utilization of the solidified CSS from static application scenarios to dynamic application scenarios.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"9 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148809900","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

Fracture behavior of lightweight multiscale fiber-reinforced ultra-high-performance concrete after exposure to high temperatures 高温下轻质多尺度纤维增强超高性能混凝土的断裂行为

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-18 DOI: 10.1177/10567895261475834

Yao Zhang, Biao Zhang, Jinggao Zhu, Xuyi Wu, Weigang Zhao, Xiaodan Ren, Zhiguo Yan, Jiann-Wen Woody Ju

{"title":"Fracture behavior of lightweight multiscale fiber-reinforced ultra-high-performance concrete after exposure to high temperatures","authors":"Yao Zhang, Biao Zhang, Jinggao Zhu, Xuyi Wu, Weigang Zhao, Xiaodan Ren, Zhiguo Yan, Jiann-Wen Woody Ju","doi":"10.1177/10567895261475834","DOIUrl":"https://doi.org/10.1177/10567895261475834","url":null,"abstract":"Ultra-high-performance concrete (UHPC) is prone to uncontrolled crack propagation and brittle failure, especially under fire events. Steel, polyethylene, and carbon fibers can halt thermal cracking from micro to macro levels, effectively enhancing the crack resistance and toughness of UHPC. Additionally, cenospheres are lightweight hollow structure materials, which can reduce the density and thermal conductivity of UHPC. Thus, in the present article, the multiscale fibers and cenospheres are incorporated to create a lightweight multiscale fibers UHPC (MSFUHPC) with enhanced workability and durability at elevated temperatures. Experimental research involving fourteen mix proportions across five temperatures is conducted to study the fracture behavior of this novel material. The results indicate that cenospheres help mitigate the decrease in compressive strength between 400°C and 600°C, with their reduction effect on strength diminishing from 14% at 20°C to 0% at 600°C. The excellent dispersion of the cenosphere enhances the cracking resistance of MSFUHPC between 400°C and 600°C, achieving twice the initial fracture toughness and 1.5 times the unstable fracture toughness compared to the groups without cenosphere. Furthermore, the hollow structure of the cenosphere improves energy dissipation and delays the fracture process of MSFUHPC from 20°C to 400°C. Within this range, the improved effect of the cenosphere on fracture energy rises from 36% to 87%. Among the lightweight MSFUHPC designs, 0.6% 1 mm carbon fiber (CF) + 0.6% 3 mm CF + 50% cenosphere design shows the best performance between 400°C and 600°C. This not only verifies the effectiveness of this novel material but also provides guidance for mixture design.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"17 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148768643","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

Hybrid phase-field modeling of crack propagation in a sigmoid functionally graded blades under cyclic thermomechanical loading: A comparison of adaptive implicit and explicit cyclic jump schemes 循环热机械载荷下s型功能梯度叶片裂纹扩展的混合相场模型：自适应隐式和显式循环跳变方案的比较

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-18 DOI: 10.1177/10567895261477490

Shashank Pandey

{"title":"Hybrid phase-field modeling of crack propagation in a sigmoid functionally graded blades under cyclic thermomechanical loading: A comparison of adaptive implicit and explicit cyclic jump schemes","authors":"Shashank Pandey","doi":"10.1177/10567895261477490","DOIUrl":"https://doi.org/10.1177/10567895261477490","url":null,"abstract":"This work, for the first time, presents a comparison of an adaptive implicit and explicit cycle-jump schemes with an unaccelerated scheme under the frame work of hybrid phase-field modeling for simulating crack propagation and for calculation of time under varying parameters like cyclic thermomechanical load, crack angle, pure thermal load and porosity coefficient in a sigmoid functionally graded material (S-FGM) blade. The S-FGM blade is graded through-the-thickness from pure ceramic (front surface) to pure metal (back surface). Temperature-dependent material properties are described by a power law relation, and the ceramic volume fraction follows a sigmoid distribution. A hybrid phase-field damage model is used to treat the crack as a continuous domain. Two different adaptive cyclic jump schemes, viz., adaptive implicit cycle-jump and explicit cycle-jump, have been implemented to accelerate the crack simulation and calculation times in the present unaccelerated scheme. From the present investigation, it is observed that for achieving a given crack length, the implicit adaptive cycle-jump scheme requires the least number of cycles and calculation time, followed by the explicit adaptive cycle-jump scheme, and the same is observed to be highest for an unaccelerated scheme.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"70 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148768638","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

Fatigue behavior and damage evolution of granite under tensile and compressive loads 花岗岩在拉压载荷下的疲劳行为与损伤演化

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-17 DOI: 10.1177/10567895261477498

Tianzhu Huang, Baoyun Zhao, Jiale Liu

{"title":"Fatigue behavior and damage evolution of granite under tensile and compressive loads","authors":"Tianzhu Huang, Baoyun Zhao, Jiale Liu","doi":"10.1177/10567895261477498","DOIUrl":"https://doi.org/10.1177/10567895261477498","url":null,"abstract":"Fatigue damage induced by cyclic loading critically governs the long-term stability of underground rock engineering structures. While the mechanical behavior of rock under cyclic compression has been extensively investigated, the fundamental disparity between tensile and compressive fatigue mechanisms remains elusive, largely due to the lack of a unified experimental framework. In this study, a series of monotonic and constant-amplitude cyclic loading tests were conducted on granite under both uniaxial compression and direct tension. The results highlight fundamentally divergent damage trajectories, where cyclic compression is characterized by elastic shakedown and compaction hardening, with energy dissipation governed primarily by internal friction. Notably, postfatigue monotonic tests reveal a stress-dependent dual mechanism in compression: low-amplitude cycling enhances the residual strength of granite by up to 46.9% (from 97.9 to 143.8 MPa) via mechanically induced closure of preexisting microdefects, whereas high-amplitude cycling precipitates damage accumulation. Conversely, cyclic tension exhibits progressive stiffness degradation driven by direct bond breakage, with negligible hardening effects. To quantify these disparities, a novel damage variable was derived by integrating deformation kinematics and energy principles. Comparative validation confirms that, unlike stiffness, energy, or conventional strain-based indices, this newly derived framework robustly captures the three-stage damage evolution and provides a unified description for both loading modes. Ultimately, this study elucidates the mechanistic transition from friction-dominated compressive fatigue to cleavage-dominated tensile fracture, offering a rigorous quantitative basis for the stability assessment of rock masses under complex cyclic stress states.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"30 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148729240","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

Geometrically negative Poisson's ratio via laser additive manufacturing: Synergistic energy absorption through multi-scale cooperative deformation 激光增材制造的几何负泊松比：多尺度协同变形的协同能量吸收

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-10 DOI: 10.1177/10567895261476444

Mingyang Liang, Jiajun Wang, Qichao Xue, Quansheng Hu, Mingtao Chen, Siyuan Zhang, Tian Liang, Chaoying Wang, Yilei Li

{"title":"Geometrically negative Poisson's ratio via laser additive manufacturing: Synergistic energy absorption through multi-scale cooperative deformation","authors":"Mingyang Liang, Jiajun Wang, Qichao Xue, Quansheng Hu, Mingtao Chen, Siyuan Zhang, Tian Liang, Chaoying Wang, Yilei Li","doi":"10.1177/10567895261476444","DOIUrl":"https://doi.org/10.1177/10567895261476444","url":null,"abstract":"This study proposes an innovative negative Poisson's ratio honeycomb metamaterial characterized by a tailored geometric topology, fabricated by laser powder bed fusion (LPBF). By integrating the topological benefits of re-entrant hexagonal honeycomb structures in conjunction with star-shaped lattices, a composite structure was developed that incorporates multi-scale synergistic deformation mechanisms. The LPBF-optimized 316L stainless steel specimens demonstrated high dimensional accuracy. Quasi-static compression and dynamic impact tests demonstrated that the synergistic interaction between plastic hinge propagation within the honeycomb units and branch buckling in the star-shaped units significantly enhances energy absorption efficiency. Notably, under quasi-static loading conditions, the proposed structure exhibits a substantial enhancement in specific energy absorption compared to conventional star-shaped lattices. Finite-element analysis (FEA), corroborated by the digital image correlation technique, provided a detailed characterization of the deformation modes throughout the linear elastic stage, plateau yield region, and densification process. Furthermore, it was observed that internal voids generated during the melting and cooling of the powder contributed to strain-rate softening behavior under dynamic impact loading. This research establishes a robust workflow that integrates “topology optimization–LPBF manufacturing–experimental validation–FEA simulation,” laying a theoretical groundwork for lightweight protective structures applicable in aerospace and biomedical implants. Future endeavors may extend this methodology to encompass functionally graded material design and applications involving multi-physics field coupling.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"19 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148709487","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

Fatigue behavior of ultrasonically welded CF/PPS single-lap joints compared with bulk PPS using entropy-based finite element analysis 超声焊接CF/PPS单搭接接头疲劳性能的熵有限元分析

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-10 DOI: 10.1177/10567895261476897

Maruri Takamura, Masayuki Nakada, Shin-ichi Takeda, Jun Koyanagi

{"title":"Fatigue behavior of ultrasonically welded CF/PPS single-lap joints compared with bulk PPS using entropy-based finite element analysis","authors":"Maruri Takamura, Masayuki Nakada, Shin-ichi Takeda, Jun Koyanagi","doi":"10.1177/10567895261476897","DOIUrl":"https://doi.org/10.1177/10567895261476897","url":null,"abstract":"In this study, carbon-fiber-reinforced polyphenylene sulfide (CF/PPS) laminates were joined by ultrasonic welding using a PPS interlayer to form single-lap joints, and their temperature-dependent fatigue behavior was investigated within an entropy-based fracture framework. A fatigue damage model based on entropy generation was implemented in finite element analysis (FEA), and the responses of bulk PPS and welded joints were compared in relation to local stress concentration and viscoelastic energy dissipation. Static tensile and tensile fatigue tests conducted at multiple temperatures were used to evaluate the model and to examine the effect of temperature on fatigue life, damage localization, and fracture characteristics. The numerical predictions showed good agreement with the experimental results, supporting the applicability of the proposed approach. Although the welded joints exhibited lower fatigue lives than bulk PPS, the main distinction was not limited to the fatigue-life level itself but was also reflected in the different S–N slopes and fracture morphologies, indicating distinct fatigue-damage accumulation mechanisms. These results suggest that the fatigue behavior of welded joints cannot be interpreted solely from bulk material properties and that local entropy generation associated with joint geometry and temperature-dependent dissipation plays an important role in governing fatigue failure.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"360 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148709534","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

Quantitative modeling of thermal fatigue damage in concrete considering material–boundary interaction effects 考虑材料-边界相互作用效应的混凝土热疲劳损伤定量建模

IF 4.2 2区工程技术

International Journal of Damage Mechanics Pub Date : 2026-08-04 DOI: 10.1177/10567895261473741

Ziyi Wang, Jinsong Zhu

{"title":"Quantitative modeling of thermal fatigue damage in concrete considering material–boundary interaction effects","authors":"Ziyi Wang, Jinsong Zhu","doi":"10.1177/10567895261473741","DOIUrl":"https://doi.org/10.1177/10567895261473741","url":null,"abstract":"During the long-term service of concrete structures, repeated temperature fluctuations induce complex thermal stresses and fatigue damage within the heterogeneous concrete matrix, thereby affecting durability and structural safety. This study proposes a quantitative macro–micro coupled computational framework for evaluating temperature-induced damage in concrete under cyclic thermal loading. The improved Paris’ law was adopted to account for the growth behavior of the concrete damage factor. Validated by existing laboratory data of concrete specimens and case analysis of a concrete bridge, the spatial distribution and crack-initiation risk of internal damage in concrete structures subjected to long-term thermal cycling were analyzed. Results revealed that for every 10 °C increase in temperature amplitude, the average damage factor rises by approximately 15%. The inner wall of the main girder was identified as a high-risk zone for thermal fatigue. When a heat-reflective boundary was applied, the inner wall damage decreased by 7.14%, and the overall fatigue damage was reduced by 52.17%. To mitigate thermal fatigue cracks, a careful balance of thermal stress and mechanical performance at both the material and structural levels was identified as essential, ensuring thermal cyclic damage remains controlled throughout the concrete structure. The proposed temperature damage model and numerical approach enable the coupled prediction of damage evolution and cracking risk under varying climatic conditions. The proposed approach offers a theoretical framework for optimizing thermal insulation and assessing the durability of concrete bridges exposed to significant temperature variations.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"59 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148675130","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