Thin-Walled Structures最新文献

Radiative energy transfer model for high-frequency vibration analysis of functionally graded saturated porous beams

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-04-01 DOI: 10.1016/j.tws.2025.113227

Yitao Xing , Qiang Zhong , Haibo Chen

{"title":"Radiative energy transfer model for high-frequency vibration analysis of functionally graded saturated porous beams","authors":"Yitao Xing , Qiang Zhong , Haibo Chen","doi":"10.1016/j.tws.2025.113227","DOIUrl":"10.1016/j.tws.2025.113227","url":null,"abstract":"<div><div>This paper presents an efficient approach for the high-frequency response prediction of finite functionally graded (FG) saturated porous beams based on the radiative energy transfer method (RETM). So far, although extensive research has been conducted on the dynamic analysis of FG saturated porous beams, study on the high-frequency vibration characteristics remains unreported. In this paper, we fill this gap in two main aspects. First, to consider the pore pressure, we use Biot theory instead of Hook’s law to derive the motion-governing equations of FG saturated porous beam, and based on which we analyse the wave propagation characteristics of FG saturated porous beam which are important for high-frequency vibration analysis. Second, based on the RETM, we establish an energy flow model suitable for high-frequency vibration analysis of FG saturated porous beams. Numerical examples show that the proposed approach can accurately predict the energy distributions of saturated porous beams, and the effects of porosity distribution patterns, the porosity coefficient, and the Skempton coefficient on vibration responses are observed.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113227"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical investigation on the aging behavior of CFZnL composites in salt spray environment

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-04-01 DOI: 10.1016/j.tws.2025.113225

Jingang Huang , Yutong Liu , Yuliang Hou , Kang Yang , Jianwei Shi , Liang Meng , Thaneshan Sapanathan

{"title":"Experimental and numerical investigation on the aging behavior of CFZnL composites in salt spray environment","authors":"Jingang Huang , Yutong Liu , Yuliang Hou , Kang Yang , Jianwei Shi , Liang Meng , Thaneshan Sapanathan","doi":"10.1016/j.tws.2025.113225","DOIUrl":"10.1016/j.tws.2025.113225","url":null,"abstract":"<div><div>This study develops a class of novel carbon-fiber-Zinc-alloy-laminated (CFZnL) composites, and investigates the modulus after salt spray aging. Experimental salt spray aging and tensile tests have been sequentially performed on CFZnL composites and conventional CFRP composites, to assess the aging behavior and residual tensile modulus. It has been observed that Zn alloy layer significantly enhances the aging-resistance due to moisture absorption. In addition, a multiscale modeling approach is proposed to predict the aging behavior and moduli of CFZnL and CFRP composites. Microscale models have been established to obtain the effective diffusion coefficients and effective properties of CFRP layers. Moreover, residual properties of CFRP and Zn alloy layers are calculated using an exponential degradation model. Then, they are introduced in the macroscale model for the tensile simulation. The numerical results concur well with the experimental ones, validating the accuracy of the multiscale modeling approach. It indicates that CFZnL composites with double-side Zn alloy layers possess superior aging-resistance than others in salt spray environment. Finally, the damage mechanisms are analyzed for the aged CFRP and CFZnL composites via experimental observations.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113225"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Recent advances in machine learning guided mechanical properties prediction and design of two-dimensional materials

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-31 DOI: 10.1016/j.tws.2025.113261

Runkai Liu , Shu Lin , Jing Wan , Le Li , Guoqiang Zhang , Huasong Qin , Yilun Liu

{"title":"Recent advances in machine learning guided mechanical properties prediction and design of two-dimensional materials","authors":"Runkai Liu , Shu Lin , Jing Wan , Le Li , Guoqiang Zhang , Huasong Qin , Yilun Liu","doi":"10.1016/j.tws.2025.113261","DOIUrl":"10.1016/j.tws.2025.113261","url":null,"abstract":"<div><div>Two-dimensional (2D) materials have garnered significant attention due to their exceptional physical properties and potential for diverse applications. Recent advances in the machine learning (ML) based methodologies have opened new avenues for predicting and designing the mechanical behaviors of these materials. This review comprehensively examines ML-based methodologies that predict key mechanical properties including fracture strength, elastic modulus, and Poisson's ratio, by integrating intrinsic structural features, defect characteristics, external loading conditions, and environmental influences. The ML-based ways of crack propagation and fracture mechanisms are thoroughly explored. Furthermore, high-throughput screening, reverse design and model+data based intelligence design of 2D materials are highlighted for accelerating the discovery and engineering of 2D materials with tailored mechanical properties. Emerging challenges such as the development of universal descriptors and potentials, multi-field coupling analysis, the integration of experimental, theoretical, and simulation datasets, and interpretable ML-based approach are discussed alongside future perspectives aimed at the design of high-performance 2D materials.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113261"},"PeriodicalIF":5.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Strengthening of circular austenitic stainless steel tubular columns with CFRP under eccentric loading: Experimental and numerical investigations

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-29 DOI: 10.1016/j.tws.2025.113256

Galal M. Al-Mekhlafi , Mohammed A. Al-Huri , Abdelrahman El-Tohfa , Mohammed A. Al-Osta , Ahmed H. Alwathaf

{"title":"Strengthening of circular austenitic stainless steel tubular columns with CFRP under eccentric loading: Experimental and numerical investigations","authors":"Galal M. Al-Mekhlafi , Mohammed A. Al-Huri , Abdelrahman El-Tohfa , Mohammed A. Al-Osta , Ahmed H. Alwathaf","doi":"10.1016/j.tws.2025.113256","DOIUrl":"10.1016/j.tws.2025.113256","url":null,"abstract":"<div><div>This study investigates the structural behavior of CFRP-wrapped circular stainless-steel tubular (CSST) columns subjected to combined axial compression and bending loads. Eighteen cold-formed stainless steel tubular specimens with varying diameter-to-thickness ratios, CFRP wrapping configurations, and load eccentricities were tested experimentally. Results reveal that CFRP wrapping significantly enhances the load-bearing capacity and ductility of CSST columns by mitigating local buckling and delaying failure. Finite element models were developed and validated using ABAQUS software to complement experimental findings. A comprehensive parametric study explored additional factors influencing structural behavior. Based on the combined experimental and numerical results, a design model was proposed by incorporating the effect of CFRP wrapping into the Continuous Strength Method (CSM) framework. The proposed model demonstrated high accuracy in predicting failure loads and moments, offering a practical approach for the structural design of the strengthened CSST. This work advances the application of CFRP in enhancing the performance of structural stainless-steel components.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113256"},"PeriodicalIF":5.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Inverse design of cylindrical curved shell metasurface for elastic wave modulation based on PSO-BP model

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-29 DOI: 10.1016/j.tws.2025.113253

Jialin Wu , Lingyun Yao , Hui Chen

{"title":"Inverse design of cylindrical curved shell metasurface for elastic wave modulation based on PSO-BP model","authors":"Jialin Wu , Lingyun Yao , Hui Chen","doi":"10.1016/j.tws.2025.113253","DOIUrl":"10.1016/j.tws.2025.113253","url":null,"abstract":"<div><div>Nowadays, there is a lack of systematic and comprehensive theory regarding the propagation of elastic wave on cylindrical curved shells metasurface, largely due to the complex three-dimensional structural parameters on cylindrical curved shells. As a new powerful tool for predictive modeling, machine learning method can be learned and updated constantly, and is being used to design complex metasurface structures for controlling elastic wave propagation. In this work, an inverse design method was proposed to deal with the design of cylindrical curved shell metasurface with different curvatures. Firstly, machine learning technique was utilized to construct a mapping between structural parameters and properties of elastic wave propagation. Transmittance and phase shift properties under multiple outputs are initially predicted using multiple variable geometric parameters as inputs to machine learning network. Subsequently, particle swarm optimization (PSO) algorithm is utilized on original network to improve the quality of the predictions. Finally, the constructed models are used to design the unitary metasurface with high transmittance and special phase shifts, which are combined to realize the various modulation functions of elastic wave. Experimental results disclose that the network trained based on a large data set has high prediction accuracy. It is demonstrated the proposed method can not only be used to explore more elastic wave propagation laws in cylindrical curved shells, but also lays foundation for future functions of vibration isolation, energy focusing related to these structures.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113253"},"PeriodicalIF":5.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Transverse coupled resonances for ultrathin lightweight acoustic metamaterials

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-28 DOI: 10.1016/j.tws.2025.113219

G. Sal-Anglada , D. Yago , J. Cante , J. Oliver , T. Pàmies , D. Roca

{"title":"Transverse coupled resonances for ultrathin lightweight acoustic metamaterials","authors":"G. Sal-Anglada , D. Yago , J. Cante , J. Oliver , T. Pàmies , D. Roca","doi":"10.1016/j.tws.2025.113219","DOIUrl":"10.1016/j.tws.2025.113219","url":null,"abstract":"<div><div>Innovations in acoustic metamaterials increasingly focus on optimizing sound insulation capabilities while addressing manufacturing and integration challenges. Previous studies have explored coupled resonance mechanisms in multilayered structures, where resonators are aligned along the direction of wave propagation. While these approaches provide enhanced sound transmission loss (STL) over broadband frequency ranges, they often require increased panel thickness to achieve the desired insulation. This study introduces a novel approach based on transverse coupled resonances, where the resonators are arranged in the same plane, i.e., perpendicular to wave propagation, by exploiting bending effects in the metamaterial design. By implementing these mechanisms in a single layer, the resulting panel’s thickness and weight are significantly reduced, simplifying the manufacturing process. The proposed transverse coupled-resonances acoustic metamaterial (TCAM) is validated numerically and experimentally using impedance tube measurements, with prototypes achieving 60 dB of attenuation over a broad frequency range around 1000 Hz. Further parametric studies show the potential for enhanced sound attenuation at even lower frequencies with thinner and lighter designs, paving the way for customizable soundproofing solutions tailored to specific application requirements.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113219"},"PeriodicalIF":5.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Improving porosity distribution and mechanical performance of multilayer sandwich composites using a new strategy of gradient curing cycles during internal thermal expansion molding process

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-27 DOI: 10.1016/j.tws.2025.113244

Yunfei Peng, Maojun Li, Xujing Yang, Bingjie Sun, Shilong Lv

{"title":"Improving porosity distribution and mechanical performance of multilayer sandwich composites using a new strategy of gradient curing cycles during internal thermal expansion molding process","authors":"Yunfei Peng, Maojun Li, Xujing Yang, Bingjie Sun, Shilong Lv","doi":"10.1016/j.tws.2025.113244","DOIUrl":"10.1016/j.tws.2025.113244","url":null,"abstract":"<div><div>This work introduces a novel gradient curing cycle strategy for optimizing resin impregnation flow in the internal thermal expansion molding process, aimed at significantly improving porosity distribution and enhancing mechanical performance. The proposed strategy meticulously aligns the foaming characteristics of thermal expansion foam with the curing behavior of prepregs, effectively surpassing conventional curing temperature limitations. By allowing a controlled temperature hold above the resin gelation point, this approach leverages continuous and stable foam expansion to achieve superior results. A key innovation of this work lies in demonstrating the capability of the gradient curing cycle to produce CFRP with ultra-low porosity levels as low as 0.1 % sandwich composite structures. This advancement enables a systematic investigation into the spatial evolution of inter-bundle voids and elucidates the underlying mechanism for void suppression. Furthermore, the strategy enhances the bending fracture toughness and shear strength of CFRP by 22.6 % and 6.5 %, respectively, marking a significant leap in performance compared to traditional internal thermal expansion molding methods. The findings of this work establish a solid foundation for extending the application of complex components fabricated via the internal thermal expansion molding process to more demanding operational environments and increasingly complex working conditions.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113244"},"PeriodicalIF":5.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Tensile performance of concrete-filled double skin steel tubular members using recycled aggregate concrete

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-27 DOI: 10.1016/j.tws.2025.113248

Hui-Wen Tian, Wei Li, Long-Hai Lai

引用次数: 0

Analytical, experimental, and numerical analyses of the buckling of composite ring-stiffened steel cylinders

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-25 DOI: 10.1016/j.tws.2025.113175

Huayong Chang , Lihui Wang , Yunsen Hu , Chao Kang , Kechun Shen , Jian Zhang

{"title":"Analytical, experimental, and numerical analyses of the buckling of composite ring-stiffened steel cylinders","authors":"Huayong Chang , Lihui Wang , Yunsen Hu , Chao Kang , Kechun Shen , Jian Zhang","doi":"10.1016/j.tws.2025.113175","DOIUrl":"10.1016/j.tws.2025.113175","url":null,"abstract":"<div><div>In the current research, the buckling loads and modes of composite ring-stiffened steel cylinders were studied when subjected to hydrostatic pressure. Analytical formulas for forecasting the linear buckling load of ring-stiffened cylinders were derived and validated. Moreover, numerical and response surface analyses were conducted to determine the nonlinear knockdown factor (<em>K<sub>non</sub></em>). Pairs of nominally identical ring-stiffened and unreinforced steel cylinders were manufactured, measured, and tested, and corresponding numerical models were developed. The results from the analytical, experimental, and numerical studies were consistently in agreement. Reinforcement with composite ring stiffeners enhanced the experimental buckling loads by 258.8 % but increased weight by only approximately 17 %. Parametric analyses were also conducted to assess the impact of the composite ring's thickness and width on nonlinear buckling loads and postbuckling modes. Although the composite ring stiffeners enhanced the global structural stability and load capacity of plain cylinders, they also caused transitions in the postbuckling mode from global buckling to coupled, inter-ring, or mono-cell buckling.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113175"},"PeriodicalIF":5.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Local-global buckling behaviours of axially compressive welded I-section steel columns with local corrosion

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-25 DOI: 10.1016/j.tws.2025.113239

Xinhao Han , Chen Jia , Qing Hu , Changyong Liu , Tianhao Xiang

{"title":"Local-global buckling behaviours of axially compressive welded I-section steel columns with local corrosion","authors":"Xinhao Han , Chen Jia , Qing Hu , Changyong Liu , Tianhao Xiang","doi":"10.1016/j.tws.2025.113239","DOIUrl":"10.1016/j.tws.2025.113239","url":null,"abstract":"<div><div>Welded I-section steel exposed to harsh environments is highly susceptible to corrosion, with local corrosion being particularly common and detrimental. Local corrosion causes uneven changes in plate thickness, leading to increased stress concentration and premature buckling in corroded regions, and a subsequent compromise in the stability. However, the influence of local corrosion on the buckling behaviours has not been clarified in prior research. This paper addresses this gap by designing and testing 12 welded I-section steel columns with simulated local corrosion (varying slenderness ratios, corrosion locations, corrosion depths and corrosion dimensions) under axial compression. Electrochemical accelerated corrosion tests were conducted to effectively simulate local corrosion, and the corrosion morphology was assessed using three-dimensional scanning technology. Axial compression tests were then conducted to study the influence of local corrosion on failure modes, load-displacement curves and cross-sectional strain development of corroded steel columns. Additionally, finite element (FE) models incorporating the scanned corrosion morphology were established and validated against test results for parametric analysis. The key parameters included geometric dimensions (slenderness ratio, width-to-thickness ratio, and thickness ratio) and corrosion region characteristics (location, depth, and dimension). Both experimental and numerical results revealed that local corrosion altered the buckling modes and decreased the residual resistance of the welded I-section steel columns under axial compression. Furthermore, the equivalent thickness and initial eccentricity coefficient were defined and incorporated into the existing codified approaches for predicting the residual resistance of welded I-section steel columns with local corrosion under axial compression.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113239"},"PeriodicalIF":5.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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