{"title":"Design and kinematic analysis of origami honeycomb metamaterials with one-DOF radial motion","authors":"Haojie Huang, Jinlong Jiang, Yongquan Li","doi":"10.1016/j.tws.2025.112978","DOIUrl":"10.1016/j.tws.2025.112978","url":null,"abstract":"<div><div>Rigid origami offers innovative approaches for designing metamaterials with unique mechanical properties. This paper proposes a new family of one-degree-of-freedom (one-DOF) radial-motion honeycomb metamaterials based on a novel rigid origami pattern. First, metamaterial cells based on this pattern were designed and assembled into origami honeycomb structures. The synchronized one-DOF radial motion exhibited by these cells was verified through both circulation laws and an improved Denavit–Hartenberg (D–H) parametric method. The conditions for avoiding physical interference between metamaterial cells and the scalability and geometric kinematic properties of such cells were then investigated. The Poisson's ratios of the metamaterials were analyzed under both linear and nonlinear material properties, with the results showing constant negative Poisson's ratios in all three directions. It was shown that, when nonlinear effects were considered, the negative Poisson's ratio increased with the elastic modulus of the material. Finally, potential engineering applications of the origami honeycomb structure were evaluated, including a novel honeycomb concrete composite structure with potential applications in high axial load environments such as buildings and bridge pillars.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112978"},"PeriodicalIF":5.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183480","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}
Minghao Li , Zizhen Qi , Chenyang Jiang , Rong Chen , Yuliang Lin , Xiangcheng Li , Yuwu Zhang
{"title":"Mechanics of curved chiral beam based three-dimensional metamaterial","authors":"Minghao Li , Zizhen Qi , Chenyang Jiang , Rong Chen , Yuliang Lin , Xiangcheng Li , Yuwu Zhang","doi":"10.1016/j.tws.2025.112995","DOIUrl":"10.1016/j.tws.2025.112995","url":null,"abstract":"<div><div>Flexible metamaterials with low modulus but progressively enhanced compressive resistance have shown huge potential in flexible protection applications for personnel and sensitive equipment. Ascribed to the specific mechanical properties such as negative Poisson's ratios and significant compressibility, the chiral microstructural configurations have attracted great interests in energy absorption and can therefore be customized for specific designs. However, the more advanced design is still desired. In this paper, a three-dimensional curved chiral beam based lattice (3D-CCBL) was proposed by replacing the conventional straight trusses with curved chiral beams, aiming to achieve novel metamaterial with excellent flexibility and tailorable mechanical properties. Two types of 3D-CCBL specimens, with arc angles ranging from 120° to 210° were fabricated using the selective laser sintering (SLS) additive manufacturing technique. The compressive characteristics of 3D-CCBL were thoroughly investigated via experiments and simulations, considering the effects of anisotropy and relative density. In addition, a theoretical model was derived to predict the compressive modulus and plateau stress of 3D-CCBL, which achieved satisfactory agreement with both experimental measurements and numerical predictions. It is indicated that both types of 3D-CCBL mainly exhibited a bending-dominated deformation mode, although type II of 3D-CCBL possessed better energy-absorbing capacity and resistance to instability. The energy-absorbing capacity of 3D-CCBL can be enhanced by appropriately decreasing the arc angle, whereas the small angles would be more likely lead to instability. This paper provides a framework for guiding the design of three-dimensional flexible and ultra-lightweight metamaterials and promotes their applications in the fields of flexible protections.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112995"},"PeriodicalIF":5.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183485","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}
Liangdi Wang , Jun Wang , Yingjie Xu , Yanlong Liu , Xuebei Teng , Jihong Zhu , Weihong Zhang
{"title":"Experiments and simulations on the impact resistance of superelastic shape memory alloy reinforced composites","authors":"Liangdi Wang , Jun Wang , Yingjie Xu , Yanlong Liu , Xuebei Teng , Jihong Zhu , Weihong Zhang","doi":"10.1016/j.tws.2025.112977","DOIUrl":"10.1016/j.tws.2025.112977","url":null,"abstract":"<div><div>Carbon fiber reinforced polymer (CFRP) composites are highly valued for their excellent specific strength and stiffness. However, CFRP is vulnerable to impact damage, which is often unavoidable in practical applications. This study investigates the enhancement of impact resistance in CFRP composites through the incorporation of superelastic shape memory alloy (SMA) wires into the CFRP matrix. Unidirectional and bidirectional SMA-reinforced CFRP laminates were fabricated and subjected to low-velocity impact testing. The surface and internal interlaminar damage patterns of the laminates were observed through a combination of visual inspection and ultrasonic C-scan imaging. The impact response of the laminates was analyzed by examining the time-varying curves of impact force and impact point displacement. The results indicate that SMA-reinforced CFRP (SMA-CFRP) demonstrates shallower delamination cracks and reduced interlaminar damage after impact. The maximum impact force of the unidirectional and bidirectional SMA-reinforced CFRP increased by 26.1 % and 29.5 %, respectively, indicating a significant enhancement in the matrix stiffness after the incorporation of SMA. The mechanical mechanisms behind the improved impact resistance were further investigated through simulation analysis, the importance of SMA phase transformation in the energy absorption process during impact was highlighted. The results of the parametric analysis indicate that reducing the spacing or introducing pre-stress of SMA wires contributes to a slight improvement in impact resistance. This study offers new insights for the design and optimization of impact-resistant composites.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112977"},"PeriodicalIF":5.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182426","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}
H. Gervásio , L. Simões da Silva , A. Eizaguirre-Iribar , X. Olano-Azkune , J. Lange , E.M. Pradhan , T. Renaux , T. Gelders , V. Huet , D. Izabel , D. Spagni , A. Palisson , V. Prudor
{"title":"Experimental characterization of the mechanical and functional performance of innovative ultra-low carbon sandwich panels and envelope systems for buildings","authors":"H. Gervásio , L. Simões da Silva , A. Eizaguirre-Iribar , X. Olano-Azkune , J. Lange , E.M. Pradhan , T. Renaux , T. Gelders , V. Huet , D. Izabel , D. Spagni , A. Palisson , V. Prudor","doi":"10.1016/j.tws.2025.112999","DOIUrl":"10.1016/j.tws.2025.112999","url":null,"abstract":"<div><div>The use of low-carbon materials is key for decarbonizing the construction sector, but their innovation potential is still relatively unexplored. The EU research project InCSEB aimed at the development of five ultra-low carbon steel building envelope systems and sandwich panels for cladding and roofing applications. These façade systems and sandwich panels incorporate the innovative use of wood fiber, a renewable and bio-sourced insulation material, while achieving a high level of mechanical and functional performances and ensuring compliance with other requirements such as sustainability criteria. This paper provides an overview of the results of the experimental study that has been carried out to assess and validate the functional and mechanical performances of the proposed innovative insulation sandwich panels and façade systems, aiming to achieve a technology readiness level of TRL 7 by the end of the project. The experimental study shows very promising results, fulfilling market expectations regarding mechanical, seismic, thermal, environmental, and regulatory requirements.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112999"},"PeriodicalIF":5.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sliding resistance of layered ultra-thin glass module for flexible cover window: Effect of mechanical properties and artificial neural network modeling","authors":"Na-Im Kim , Areum Yoo , Jinsu Choi , Jung-Wook Wee","doi":"10.1016/j.tws.2025.112994","DOIUrl":"10.1016/j.tws.2025.112994","url":null,"abstract":"<div><div>Recently, various flexible products such as curved, sliding, foldable, and stretchable devices have been introduced to the electronics market using flexible materials. For these products to be commercialized, the cover window module that protects the internal display from external impacts must be capable of specific deformation actions repeatedly without causing deformation or damage during operation. Additionally, structural analysis techniques are required to accelerate design processes. In this study, a finite element model for the sliding motion of the layered cover window module was developed and validated by comparing with experimental results. Based on the suggested model, the parameter study for the mechanical properties of each layer was conducted and physically explained. The relationships between mechanical properties and sliding force were identified and predicted by stepwise regression and artificial neural network methods.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112994"},"PeriodicalIF":5.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182425","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}
Jingfeng Wang , Qiuyu Xu , Yong Liu , Weidong He , Jingyi Wang , Beibei Li
{"title":"Experimental and theoretical analysis of L-shaped partially encased thin-walled steel-concrete composite columns under axial compression","authors":"Jingfeng Wang , Qiuyu Xu , Yong Liu , Weidong He , Jingyi Wang , Beibei Li","doi":"10.1016/j.tws.2025.112961","DOIUrl":"10.1016/j.tws.2025.112961","url":null,"abstract":"<div><div>Due to the advantages of aesthetic appeal and simplicity in construction, <span>l</span>-shaped partially encased thin-walled steel-concrete composite (thin-walled LPEC) columns present broad prospects in engineering applications. This study presented experimental and theoretical analysis of thin-walled LPEC stub columns under axial compression. The axial test revealed the axial failure modes of thin-walled LPEC columns: spalling and local crushing of concrete and local buckling of flanges. The parametric analysis showed that as the steel component thickness and steel yield strength increased, the transverse link spacing and limb height-to-thickness ratio decreased, the confinement of steel component and transverse links on the concrete was improved. Based on the axial stress state of the concrete, the concrete area was classified into un-effectively weakly confined, effectively weakly confined and strongly confined regions. A calculation method considering the influence of transverse link spacing and limb height-to-thickness ratio was proposed for calculating the concrete area in each region. According to the strain compatibility and interfacial interactions, a calculation model for lateral confining stress in concrete under peak load was constructed. The calculation method for the strength of confined concrete and the axial compression bearing capacity of thin-walled LPEC stub columns were proposed. The calculation results aligned well with the existing experimental and FE analysis results. This research lays a foundation for further exploration and application of thin-walled LPEC columns.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112961"},"PeriodicalIF":5.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183230","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}
Hang Dong , Hongxu Wang , Paul J. Hazell , Nan Sun , Hari Bahadur Dura , Juan P. Escobedo-Diaz
{"title":"Effects of printing parameters on the quasi-static and dynamic compression behaviour of 3D-printed re-entrant auxetic structures","authors":"Hang Dong , Hongxu Wang , Paul J. Hazell , Nan Sun , Hari Bahadur Dura , Juan P. Escobedo-Diaz","doi":"10.1016/j.tws.2025.113000","DOIUrl":"10.1016/j.tws.2025.113000","url":null,"abstract":"<div><div>This study examines the effects of manufacturing parameters on the mechanical properties of 3D-printed re-entrant auxetic structures under quasi-static and dynamic compression conditions. The influences of base material (PLA and short carbon fibre-reinforced PLA), nozzle diameter (0.4 mm and 0.6 mm), and printing direction were systematically analysed. Experimental results revealed that peak force and energy absorption could be significantly enhanced by proper printing direction. While the addition of short carbon fibres effectively increased stiffness, it also introduced brittleness that was detrimental to energy absorption. However, the impact of nozzle diameter was relatively minor and varied with test conditions. Microscopic analysis of printing quality and fracture surface morphology provided further insights into the fundamental roles of manufacturing parameters in determining the mechanical behaviour of re-entrant structures.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 113000"},"PeriodicalIF":5.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yu Shi , Chengxiang Sun , Chang Gao , Jialin Liu , Xiong Peng
{"title":"Study on lateral resistance of cold-formed corrugated steel plates with lightweight foam concrete composite walls","authors":"Yu Shi , Chengxiang Sun , Chang Gao , Jialin Liu , Xiong Peng","doi":"10.1016/j.tws.2025.112964","DOIUrl":"10.1016/j.tws.2025.112964","url":null,"abstract":"<div><div>This study experimentally and numerically investigated the lateral resistance of cold-formed corrugated steel plates with lightweight foam concrete composite walls (CPLWs). The horizontal reversed cyclic loading tests were performed on a total of five walls, two CPLWs and three without concrete composite walls (CPWs). The influence of corrugated steel plate orientation, lightweight foam concrete, and connection type on the lateral resistance of the walls was investigated in terms of hysteresis curves, skeleton curves and characteristic values, stiffness degradation, cyclic bearing capacity degradation, and energy dissipation capacity. The results indicate that incorporating lightweight foam concrete enhanced the lateral resistance of the walls significantly. Vertical corrugated steel plates CPLWs exhibited superior lateral resistance than horizontal ones. Flange bolts could not increase the shear capacity or stiffness of the composite walls. Furthermore, after being developed and validated based on the experimental results, 38 finite element analysis (FEA) models were used in parametric studies to analyze the impact of parameters including the thickness of the frame and corrugated steel plates, lightweight foam concrete strength, and the perforation diameter of the corrugated steel plates on the lateral resistance of CPLWs. Overall, a new shear capacity formula was proposed by integrating the underlying mechanism of the walls with findings from both experimental tests and finite element models parametric analyses.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112964"},"PeriodicalIF":5.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182424","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}
Zhilong Jiang , Feng Zhang , Kaifu Li , Yingbin Chai , Wei Li , Qiang Gui
{"title":"A multi-physics overlapping finite element method for band gap analyses of the magneto-electro-elastic radial phononic crystal plates","authors":"Zhilong Jiang , Feng Zhang , Kaifu Li , Yingbin Chai , Wei Li , Qiang Gui","doi":"10.1016/j.tws.2025.112985","DOIUrl":"10.1016/j.tws.2025.112985","url":null,"abstract":"<div><div>In this work, a novel magneto-electro-elastic (MEE) radial phononic crystal (PnC) plate is proposed for the vibration and noise reduction in rotationally symmetric structures. To efficiently predict the structural responses, a multi-physics overlapping finite element method (OFEM) model is suggested for the simulation of the intelligent MEE-based PnCs. The bilinear polynomials and the trigonometric functions are utilized as basis functions to mimic the local behaviors of structure vibration. The numerical performance of the coupling MEE OFEM dynamic model is examined first from two numerical tests. In detail, the computation accuracy, efficiency, and stability of the OFEM are investigated by comparing them with those of the traditional finite element method. Based on the numerical tests, the superior behaviors of the OFEM in the dynamic analysis of MEE-based structures are proven. Then, the radial wave band gap property of the proposed PnC plate is evaluated using the effective OFEM. The phononic band gap for the radial wave is observed, and the impact of structural parameters — specifically, the unit cell width and radial filling factor of the MEE solids — on the band gaps is demonstrated. Overall, these findings can help analysts to develop practical PnCs for various engineering applications.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112985"},"PeriodicalIF":5.7,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183478","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}
Hongyu Wang , Zhenming Lei , Zhenkui Wang , Zhen Guo
{"title":"Analytical models of high-temperature pipeline deformation under submarine landslides","authors":"Hongyu Wang , Zhenming Lei , Zhenkui Wang , Zhen Guo","doi":"10.1016/j.tws.2025.112990","DOIUrl":"10.1016/j.tws.2025.112990","url":null,"abstract":"<div><div>Subsea pipelines may traverse areas prone to submarine landslides due to their long-distance transportation characteristics. As a common marine geohazard, submarine landslides pose a significant threat to the safety of pipelines. Pipelines can undergo lateral deformation over a certain length due to landslide impact, with the deformation constrained by axial and lateral pipe-soil resistances. This study constructs an analytical solution for the deformation of high-temperature subsea pipelines under landslide impact based on the Euler-Bernoulli beam theory, considering the nonlinear characteristics of axial soil resistance. The analytical solution is verified first. Then, the difference in various pipeline parameters between models considering ideal rigid-plastic and bi-linear axial resistance is compared. A parametric analysis is conducted by focusing on landslide impact force, landslide impact width, and seabed inclination angle. The results indicate that considering bi-linear axial resistance increases pipeline deformation. Larger landslide impact force, landslide impact width, and inclination angle result in greater pipeline deformation. At lower temperatures, both the bending moment and bending stress at the midpoint increase with landslide impact force and inclination angle, but they first increase and then decrease with landslide impact width. At higher temperatures, they decrease with the increase of landslide impact force, landslide impact width, and inclination angle. However, the tensile stress in the pipeline, induced by the axial force, continuously increases linearly with the increase in landslide impact force and landslide impact width.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112990"},"PeriodicalIF":5.7,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182036","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}