Thin-Walled Structures最新文献_第4页

Design of cellular stiffened shells via full-scale multi-patch isogeometric topology optimization based on Bézier extraction

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-20 DOI: 10.1016/j.tws.2025.113210

Mingzhe HUANG , Mi XIAO , Huidong HUANG , Liang GAO , Xuan WU

{"title":"Design of cellular stiffened shells via full-scale multi-patch isogeometric topology optimization based on Bézier extraction","authors":"Mingzhe HUANG , Mi XIAO , Huidong HUANG , Liang GAO , Xuan WU","doi":"10.1016/j.tws.2025.113210","DOIUrl":"10.1016/j.tws.2025.113210","url":null,"abstract":"<div><div>In this paper, a full-scale multi-patch isogeometric topology optimization (ITO) method based on Bézier extraction is proposed for design of cellular stiffened shells. The isogeometric Kirchhoff–Love shell model based on Bézier extraction is established for efficient performance analysis of the thin-shell. An isogeometric solid-shell coupling method is developed for structural analysis of stiffened shells. The penalty method is employed to ensure displacement and rotation continuity at the interfaces between adjacent NURBS patches. The stiffener layout on thin shell is represented by setting an effective density field on control mesh. A mapping constraint is adopted to avoid stiffeners with overhanging features for ease of manufacturing. Bone-like cellular stiffeners are obtained by imposing local volume constraints at each control point. In order to reduce the loss of the stiffness performance caused by local volume constraints, an adaptive allocation strategy is developed, i.e., the influence radius of local volume constraints is adaptively scaled based on the displacement field solved at each iteration. It is demonstrated through several numerical examples that the proposed method can efficiently design cellular stiffened shells with high stiffness and damage robustness.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113210"},"PeriodicalIF":5.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686269","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

Effect of creep behavior on the Ni-based single crystal blade structure under abrupt loading conditions

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-20 DOI: 10.1016/j.tws.2025.113221

Yizhe Yang , Zhixun Wen , Haiqing Pei , Lijian Shi , Jingbo Xiao , Zhufeng Yue

引用次数: 0

Large-scale FRP-confined concrete-filled steel tubes with practical foundation connections under axial compression and cyclic lateral loads: Experimental study and numerical simulation

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-20 DOI: 10.1016/j.tws.2025.113214

Jiji Wang , Hao Hu , Pin Ye , Jiaqi Chen , Bing Zhang , Sumei Zhang

{"title":"Large-scale FRP-confined concrete-filled steel tubes with practical foundation connections under axial compression and cyclic lateral loads: Experimental study and numerical simulation","authors":"Jiji Wang , Hao Hu , Pin Ye , Jiaqi Chen , Bing Zhang , Sumei Zhang","doi":"10.1016/j.tws.2025.113214","DOIUrl":"10.1016/j.tws.2025.113214","url":null,"abstract":"<div><div>FRP-confined concrete-filled steel tubes (FRP-CFSTs) are a practical form of composite members, where FRP serves as both a corrosion barrier and a confinement material. This paper investigates large-scale FRP-CFST specimens with three types of practical foundation connections (with a total specimen height of 2700 mm and an outer steel tube diameter of 406 mm) subjected to combined axial compression and cyclic lateral loads: (1) Type-1 connection consists of a steel tube with an end annular steel ring anchored into the reinforced concrete (RC) foundation with a corrugated steel tube, where the gap between the two tubes is filled with concrete containing PVA fibers; (2) Type-2 connection enhances Type-1 by incorporating welded shear studs on the embedded portion of the steel tube; and (3) Type-3 connection achieves anchorage via the extension of a steel rebar cage into both the RC foundation and the steel tube. The experimental results demonstrated the following: (1) all three foundation connections performed reliably for FRP-CFSTs; (2) FRP effectively confined the steel tube, especially at the specimen bottom; (3) when the lateral load dropped by 15 % from its peak value, all specimens exhibited lateral drift ratios exceeding 7.0 %, indicating superior ductility; (4) the overall behavior of Type-1 and Type-2 connections was very similar, suggesting the shear studs on the embedded portion of steel tube had minimal influence; (5) Type-1 and Type-2 connections showed better lateral load-carrying capacity than Type-3, while Type-3 exhibited better ductility than the former two. Finally, the hysteresis loops of the FRP-CFSTs were numerically simulated, with the predicted results closely matching the experimental curves.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113214"},"PeriodicalIF":5.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686739","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

Analysis of single-span and multi-span continuous steel purlin beams reinforced with prestressed CFRP laminates

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-20 DOI: 10.1016/j.tws.2025.113217

Xu Liang , Lili Hu , Yunhao Wang , TianQiao Liu , Yang Hua

{"title":"Analysis of single-span and multi-span continuous steel purlin beams reinforced with prestressed CFRP laminates","authors":"Xu Liang , Lili Hu , Yunhao Wang , TianQiao Liu , Yang Hua","doi":"10.1016/j.tws.2025.113217","DOIUrl":"10.1016/j.tws.2025.113217","url":null,"abstract":"<div><div>Single-span and multi-span steel purlin beams reinforced with prestressed carbon fiber reinforced polymer (CFRP) laminates exhibit intricate flexural behavior. To better understand their performance, a comprehensive analysis was carried out. Firstly, a refined finite element model (FEM) of a reinforced single-span beam subjected to four-point bending was established and validated against previous experimental results, which showed good congruence with the findings. A parametrical analysis was then conducted on this beam to determine the influence of initial and final support length, the length of CFRP laminate reinforced section, tensile stiffness of CFRP laminate, flexural stiffness of purlin component, and initial imperfections on reinforcing efficiency. An analysis of variance was performed to identify the sensitivity of reinforcing parameters. The reverse camber effect of reinforced multi-span continuous purlin beams was investigated under various conditions, including different connection types between purlin beams, varying reinforcement scenarios, differences in CFRP laminate prestress between adjacent spans, and the length of CFRP laminate reinforced section. Furthermore, the effect of the differences in CFRP laminate prestress between adjacent spans on the flexural capacity and initial stiffness of purlin beams was further studied. Finally, design recommendations were provided for reinforced purlin beams based on the numerical results.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113217"},"PeriodicalIF":5.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704856","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

Quasi-static experiment and numerical simulation of a corner-fitting-reinforced fully bolted joint for thin-walled modular steel structure

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-20 DOI: 10.1016/j.tws.2025.113215

Xiaodun Wang , Guannan Lu , Yang Liu , Zhihua Chen , Xingwang Liu , Junda Wang

{"title":"Quasi-static experiment and numerical simulation of a corner-fitting-reinforced fully bolted joint for thin-walled modular steel structure","authors":"Xiaodun Wang , Guannan Lu , Yang Liu , Zhihua Chen , Xingwang Liu , Junda Wang","doi":"10.1016/j.tws.2025.113215","DOIUrl":"10.1016/j.tws.2025.113215","url":null,"abstract":"<div><div>Modular steel building (MSB) construction represents a novel approach wherein factory-fabricated three-dimensional modules are assembled on-site. This method introduces unique structural characteristics, as module joints comprise both inter-module and intra-module connections. Current research predominantly emphasizes the influence of inter-module connections on the seismic performance of modular steel structures, often overlooking the impact of intra-module connections. Therefore, this study proposes an inter-module corner-fitting- reinforced fully bolted joint, and quasi-static loading tests were conducted to examine the effects of intra-module connection on the seismic performance of such the joint. Then the critical seismic parameters of the reinforced corner-fitting fully bolted joint were obtained, including load-bearing capacity, stiffness degradation, energy dissipation, and stress-strain behavior. A refined finite element modeling (FEM) was subsequently established and validated against experimental results. Furthermore, a simplified model was developed to capture the semi-rigid characteristics of intra-module connections, yielding results consistent with experimental data, with a load-bearing capacity error of less than 15 %. Finally, a bearing capacity calculation formula for the corner-fitting-reinforced fully bolted joint accounting for the semi-rigidity of intra-modular connections was proposed and validated against experimental and FEM numerical results, with an error within 5 %. Relevant design recommendations were also provided.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113215"},"PeriodicalIF":5.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696796","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

Towards blast safety of glass facades: Research advances and prospects

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-20 DOI: 10.1016/j.tws.2025.113213

Suwen Chen , Xing Chen , Yujia Lu , Xin Guo , Siyi Yi , Yu Luo

{"title":"Towards blast safety of glass facades: Research advances and prospects","authors":"Suwen Chen , Xing Chen , Yujia Lu , Xin Guo , Siyi Yi , Yu Luo","doi":"10.1016/j.tws.2025.113213","DOIUrl":"10.1016/j.tws.2025.113213","url":null,"abstract":"<div><div>The blast safety of glass facades and windows has drawn increasing attention in recent years due to the significant risks posed by glass-shard-related injuries in terrorist attacks and accidental explosions. This paper provides a comprehensive review of recent advancements in blast resistant design of glass facades, addressing critical issues such as the mechanical properties of facade materials, specifically glass, interlayers, and silicone adhesives, pre- and post-fracture behavior of typical glass facades/windows under blast loading. The corresponding modelling methods, design methods and hazard mitigation techniques for enhancing blast safety of glass facades are also thoroughly examined. Regarding façade materials, the paper delves into the mechanical properties under dynamic loading and different aging effects, microscale characterization, and commonly used constitutive models, while highlighting existing research limitations. In addition, the paper reviews research on the blast response of different types of glass panels, including monolithic, laminated and insulating glass panels, elucidating their response characteristics and failure mechanisms, as well as comparing various modeling approaches. Furthermore, the paper reviewed design methods and blast hazard mitigation techniques for glazing systems, encompassing both classical methods and recent innovative strategies. A systematic categorization of blast hazard mitigation techniques for glazing systems based on different reinforcement strategies is also presented. In the end, the paper identified several critical issues that have emerged in recent years and outlines potential future challenges in the field.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113213"},"PeriodicalIF":5.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716200","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

Topology optimization of buckling-induced multistable structures for energy absorption

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-20 DOI: 10.1016/j.tws.2025.113216

Feng Huang , Xin Zhou , Wenyi Gong , Yingqiong Yong , Zhenyu Yang

{"title":"Topology optimization of buckling-induced multistable structures for energy absorption","authors":"Feng Huang , Xin Zhou , Wenyi Gong , Yingqiong Yong , Zhenyu Yang","doi":"10.1016/j.tws.2025.113216","DOIUrl":"10.1016/j.tws.2025.113216","url":null,"abstract":"<div><div>The multistable structure, which consists of an array of buckling-induced bistable elements, serves as an energy-absorbing system knowned for its reusability. However, its energy absorption efficiency remains comparatively low, thereby limiting its practical application. To address this limitation, this study examines the mechanical characteristics of buckling-induced multistable structures and introduces a topology optimization method designed to maximize their theoretical energy absorption capacity. To ensure stable and accurate finite element simulations and sensitivity analysis, we propose a method that alternates between the Newton and arc-length methods for solving nonlinear equations, and switches between force and displacement loading modes during the simulation. Utilizing this topology optimization approach, we perform optimizations on traditional cosine-shaped two-dimensional curved shells as well as on cosine-shaped domes, resulting in two distinct optimized structures. These optimized structures are subsequently benchmarked against similar bistable structures documented in existing literatures in terms of mechanical performance. The results demonstrate significant enhancements in theoretical maximum energy absorption capacities for the optimized structures, thereby validating the effectiveness of the presented method.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113216"},"PeriodicalIF":5.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704858","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

Terrestrial laser scanning based full-scale wind load test and numerical analysis of a tensile membrane structure

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-20 DOI: 10.1016/j.tws.2025.113218

Runzhi Lu , Yeqing Gu , Mao Qin , Huawei Chen , Qian Zhang , Marco Meloni , Jian Feng , Jianguo Cai

{"title":"Terrestrial laser scanning based full-scale wind load test and numerical analysis of a tensile membrane structure","authors":"Runzhi Lu , Yeqing Gu , Mao Qin , Huawei Chen , Qian Zhang , Marco Meloni , Jian Feng , Jianguo Cai","doi":"10.1016/j.tws.2025.113218","DOIUrl":"10.1016/j.tws.2025.113218","url":null,"abstract":"<div><div>The structural response of tensile membrane structures under wind load is critical to their overall safety and stability. Characterizing the shape and detecting the stress state of the tensile membrane are essential aspects of this analysis. Full-scale testing is undoubtedly the most effective and direct method to gain an in-depth understanding of the deformation mechanisms of these structures under wind loads. This study uses tFIGerrestrial laser scanning technology to examine the structural behaviour of a saddle-shaped tensile membrane structure subjected to wind load. Initially, uniaxial and biaxial tensile experiments are conducted on the material. The uniaxial experiments analyse the impact of different prestress levels on material nonlinearity, and the biaxial experiments assess the residual strain after multiple tension cycles, providing insights into the true mechanical response of the structure under wind pressure. Subsequently, full-scale form finding test and wind load tests based on the equivalent load method are performed. Terrestrial laser scanning technology captures the dynamic geometrical changes of the tensile membrane, offering valuable data on its deformation behaviours under various wind load cases. Additionally, a finite element model of the structure under wind load is developed based on the material properties obtained from the experiments. A comparative analysis between test results and finite element simulations is conducted and discussed. In conclusion, this research enhances the understanding of tensile membrane structures and provides a foundation for advanced structural analysis and design in architectural applications.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113218"},"PeriodicalIF":5.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716203","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

Enhancing composite joint performance through co-cure joining with structured low-melt polyaryletherketone (LMPAEK) meshes

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-19 DOI: 10.1016/j.tws.2025.113187

Dong Quan , Jiaying Pan , Xuemin Wang , Mengmeng Han , Jiaming Liu , Guoqun Zhao

{"title":"Enhancing composite joint performance through co-cure joining with structured low-melt polyaryletherketone (LMPAEK) meshes","authors":"Dong Quan , Jiaying Pan , Xuemin Wang , Mengmeng Han , Jiaming Liu , Guoqun Zhao","doi":"10.1016/j.tws.2025.113187","DOIUrl":"10.1016/j.tws.2025.113187","url":null,"abstract":"<div><div>The use of thermoplastic films as alternatives to traditional thermoset adhesives for co-cure bonding of carbon fiber/epoxy composites offers a promising approach for joint fabrication. This technique has the potential to produce joints with enhanced structural integrity, addressing key limitations of thermoset adhesives, such as suboptimal thermal resistance, strict frozen storage requirements, and limited shelf life. In this study, thermoset composite joints were co-cure bonded using structured low-melt polyaryletherketone (LMPAEK) hollow meshes, with the thermoset/thermoplastic interface strengthened through a novel UV-irradiation process. Joint strength and fatigue life were evaluated through single-lap joint testing. The LMPAEK co-cured joints exhibited significantly improved structural integrity compared to those bonded with aerospace-grade thermoset adhesives under both quasi-static and fatigue loading conditions. This superior performance is attributed to extensive plastic deformation and controlled damage behavior within the LMPAEK resin. These characteristics, combined with LMPAEK’s advantageous properties, were key factors contributing to the remarkable lap-shear strength and fatigue resistance observed in the co-cured joints.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113187"},"PeriodicalIF":5.7,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686733","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

Modified consistent element-free Galerkin method applied to Reissner–Mindlin plates

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-19 DOI: 10.1016/j.tws.2025.113185

Marcelo Silveira Pereira , Mauricio Vicente Donadon

{"title":"Modified consistent element-free Galerkin method applied to Reissner–Mindlin plates","authors":"Marcelo Silveira Pereira , Mauricio Vicente Donadon","doi":"10.1016/j.tws.2025.113185","DOIUrl":"10.1016/j.tws.2025.113185","url":null,"abstract":"<div><div>This study addresses the solution of static, modal, buckling and aeroelastic analyses associated with rectangular plates based on the first-order shear deformation theory (FSDT), i.e., Reissner–Mindlin plates. For this purpose, a Modified Consistent Element-Free Galerkin (MCEFG) method was applied in combination with the moving least-squares (MLS) method for the obtainment of the admissible functions. Three improvements are implemented for the application of the MCEFG method: a new weighting function that diminishes the support radius influence in the MLS method, a stable and efficient numerical integration that guarantees the consistency of the method and an imposition of essential boundary conditions that do not require the augmentation of the weak form. Comparison studies on the displacement and generalized force fields, eigenfrequencies, buckling loads and flutter velocity are performed using numerical and theoretical results that confirm the accuracy and efficiency of the proposed methodology. Finally, the study considers four boundary conditions in order to guarantee the applicability of the method in different scenarios.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113185"},"PeriodicalIF":5.7,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686725","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