Thin-Walled Structures最新文献_第8页

Experimental study of impulse-current-induced electrical, arc, thermal, and mechanical multiphysics coupling on carbon fiber-reinforced polymer composites 脉冲电流对碳纤维增强聚合物复合材料电、弧、热、机械多物理场耦合的实验研究

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-11 DOI: 10.1016/j.tws.2025.113972

Shu Li , Jinru Sun , Zhicheng Peng , Xiaoyu Fan , Huaiqun Zhao , Yongjie Yao , Xueling Yao

{"title":"Experimental study of impulse-current-induced electrical, arc, thermal, and mechanical multiphysics coupling on carbon fiber-reinforced polymer composites","authors":"Shu Li , Jinru Sun , Zhicheng Peng , Xiaoyu Fan , Huaiqun Zhao , Yongjie Yao , Xueling Yao","doi":"10.1016/j.tws.2025.113972","DOIUrl":"10.1016/j.tws.2025.113972","url":null,"abstract":"<div><div>A detailed understanding of the multi-physical coupling effects in carbon fiber-reinforced polymer (CFRP) composites subjected to lightning strikes remains limited. This study proposes a set of systematic experimental methods and techniques integrating electrical, arc, thermal, and mechanical measurements. Using these methods, the complex behaviors induced in unidirectional CFRP composites under 8/20 μs impulse current injection were experimentally investigated, revealing the interrelationships and temporal sequences among the various multiphysical phenomena. Results indicate that both the lightning current injection and arc attachment zones exhibit elliptically distributed with different orientations. At the lightning attachment center, superimposed lightning thermal effects cause severe resin pyrolysis, with arc heating playing the dominant role. The associated heat accumulation leads to a delayed occurrence of surface material explosion shockwaves, with the lightning impact pressure peaking approximately 40 μs after the lightning strike. The impulse of lightning impact loads at the lightning attachment point at 12 kA is approximately 635.5 N·μs. At 15 mm outward, the arrival of arc-expansion shockwaves is further delayed, with the impact strength and impulse magnitude reduced by approximately 34.5 % and 50 %, respectively. This paper provides valuable experimental data for the development of an electro-thermal-impact synergistic damage model for CFRP composites.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113972"},"PeriodicalIF":6.6,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097483","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 studies on the effect of sandwich structures on the dynamic response of ship sections subjected to underwater explosions 水下爆炸作用下夹层结构对船体动力响应影响的实验与数值研究

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-10 DOI: 10.1016/j.tws.2025.113969

Zhiyuan Wang , Shijie Yang , Lihong Yang , Weizheng Xu , Yalun Dong , Dian Li , Jia Qu , Linzhi Wu

{"title":"Experimental and numerical studies on the effect of sandwich structures on the dynamic response of ship sections subjected to underwater explosions","authors":"Zhiyuan Wang , Shijie Yang , Lihong Yang , Weizheng Xu , Yalun Dong , Dian Li , Jia Qu , Linzhi Wu","doi":"10.1016/j.tws.2025.113969","DOIUrl":"10.1016/j.tws.2025.113969","url":null,"abstract":"<div><div>The enhancement of underwater explosions resistance is of great significance for improving the survivability of warships. Experimental and numerical studies were conducted on the dynamic response of a ship section equipped with the corrugated sandwich protective structures, under underwater explosion loading. Three configurations of corrugated sandwich protective structures were designed and the acceleration, spectral velocity and stress response of ship section measuring points are systematically analyzed. The results show that compared with the ship section without sandwich protection structure, equipping sandwich structure can significantly reduce the peak acceleration and stress at each measuring point of the ship section, attenuate the dynamic response faster, and lower the platform value of the velocity response spectrum. The multi-layer double-corrugated sandwich structure has superior energy absorption and plastic deformation capabilities, thereby enhancing the protection of the ship section. The findings provide practical insights for the structural optimization of naval protective systems under underwater explosion conditions.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113969"},"PeriodicalIF":6.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145050343","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

An effective method for the buckling analysis of composite cylindrical shells under nonuniform external pressure 非均匀外压作用下复合材料圆柱壳屈曲分析的有效方法

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-10 DOI: 10.1016/j.tws.2025.113961

Fanglin Cong , Benxin Wang , Guocai Yu , Yang Jin , Zixu Zhu , Chengyang Wang , Xiao He , Xi Zhu , Linzhi Wu

{"title":"An effective method for the buckling analysis of composite cylindrical shells under nonuniform external pressure","authors":"Fanglin Cong , Benxin Wang , Guocai Yu , Yang Jin , Zixu Zhu , Chengyang Wang , Xiao He , Xi Zhu , Linzhi Wu","doi":"10.1016/j.tws.2025.113961","DOIUrl":"10.1016/j.tws.2025.113961","url":null,"abstract":"<div><div>Nonuniform external pressure significantly impacts the load-bearing capacity of cylindrical shell structures. This study introduces an effective method for analyzing the buckling behavior of composite cylindrical shells subjected to such pressure. This method employs nonuniform load coefficients (<span><math><msub><mi>k</mi><mi>d</mi></msub></math></span>) to capture the effects of varying external pressure distributions, from hydrostatic to nonuniform, on performance of the shell. The findings show that as the <span><math><msub><mi>k</mi><mi>d</mi></msub></math></span> value increases, the critical buckling pressure of composite shells decreases under different nonuniform pressures. Additionally, this method facilitates parameter analysis and optimization. The study identifies the optimal layup configuration (<span><math><mrow><mo>[</mo><msub><mn>90</mn><mn>2</mn></msub><mo>/</mo><mn>70</mn><mo>]</mo></mrow></math></span>) for composite cylindrical shells, resulting in a 72% increase in critical buckling pressure. Overall, this work enhances the understanding of nonuniform buckling behavior, offering valuable insights for the effective design of composite cylindrical shells in engineering applications.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113961"},"PeriodicalIF":6.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061092","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

Programmable quasi-zero stiffness triaxial low-frequency isolator empowered by inverse design of Fourier-series beams and metastructure customization 基于傅立叶级数梁反设计和元结构定制的可编程准零刚度三轴低频隔离器

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-10 DOI: 10.1016/j.tws.2025.113964

Xingyu Chen , Liye Zhao , Jiawen Xu , Luxiang Xu , Ning Guo

{"title":"Programmable quasi-zero stiffness triaxial low-frequency isolator empowered by inverse design of Fourier-series beams and metastructure customization","authors":"Xingyu Chen , Liye Zhao , Jiawen Xu , Luxiang Xu , Ning Guo","doi":"10.1016/j.tws.2025.113964","DOIUrl":"10.1016/j.tws.2025.113964","url":null,"abstract":"<div><div>In modern precision manufacturing and metrology systems, low-frequency vibration isolation is a critical component. Compared to linear isolators, quasi-zero stiffness (QZS) nonlinear isolators offer the advantages of high static stiffness and low dynamic stiffness. In this study, a metastructure-based triaxial low-frequency isolator is developed based on the QZS principle. Specifically, an intuitively interpretable Fourier-series (FS) curved beam is first proposed as a monolithic QZS compliant mechanism. Importantly, a deep learning (DL)-based inverse design method is introduced to directly map the desired force-displacement responses to structural design parameters, enabling rapid design of QZS FS beams. Next, building blocks A and B are then designed based on the inverse-designed QZS FS beam to create metastructure unit cells. Two orthogonally stacked unit cells constitute the minimal configuration of the QZS triaxial isolator. A static model of the FS beam and a dynamic model of the isolator are developed to investigate the QZS features and vibration isolation performance. The triaxial metastructure isolator achieves QZS programmability and high integration while retaining the advantages of miniaturization and compactness. Finally, an isolator prototype through QZS programming (FS beam tailoring and unit cell matrix arrangement) is fabricated for triaxial vibration isolation testing. The results show that the proposed QZS triaxial isolator exhibits effective isolation performance against low-frequency disturbances along the <span><math><mi>x</mi></math></span>-, <span><math><mi>y</mi></math></span>-, and <span><math><mi>z</mi></math></span>- axes.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113964"},"PeriodicalIF":6.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097519","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 of fracture toughness in the heat-affected zone of FH36 steel for LCO₂ vessels LCO₂容器用FH36钢热影响区断裂韧性的实验与数值研究

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-10 DOI: 10.1016/j.tws.2025.113962

Yu Yao Lin , Jin Ha Hwang , Nak-Kyun Cho , Kyu Sik Park , Xing Ya Feng , Binbin Li , Do Kyun Kim

{"title":"Experimental and numerical investigation of fracture toughness in the heat-affected zone of FH36 steel for LCO₂ vessels","authors":"Yu Yao Lin , Jin Ha Hwang , Nak-Kyun Cho , Kyu Sik Park , Xing Ya Feng , Binbin Li , Do Kyun Kim","doi":"10.1016/j.tws.2025.113962","DOIUrl":"10.1016/j.tws.2025.113962","url":null,"abstract":"<div><div>With increasing decarbonisation demands, the structural safety of liquefied carbon dioxide (LCO₂) carriers in low-temperature environments has gained attention. Cracks significantly reduce structural service life, and fracture toughness is an essential material property for assessing the crack stability. Cracks tend to form in welded regions due to stress concentration. While some fracture toughness tests on the heat-affected zone (HAZ) at low temperatures have been conducted, numerical simulation studies remain limited. Firstly, this study experimentally evaluates the fracture toughness of FH36 steel base material and HAZ specimens under both room and low temperatures. To further investigate the experimental process and establish a constitutive model, finite element simulations of the testing process are performed, which incorporates a stress-modified fracture strain (SMFS) model to account for material damage. Furthermore, a new method for determining material parameters in the SMFS model is proposed, and a numerical approach for simulating fracture in the HAZ at low temperatures is developed. The resulting fracture toughness data and damage model are expected to provide reliable support for structural safety assessments in low-temperature environments.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113962"},"PeriodicalIF":6.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097417","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

Hysteretic performance of steel plate shear wall reinforced with PET-infilled diagonal CFRP multi-layer corrugated plate pet填充斜向CFRP多层波纹板加固钢板剪力墙的滞回性能

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-09 DOI: 10.1016/j.tws.2025.113968

Chu Zhao , Jinguang Yu , Weihui Zhong

{"title":"Hysteretic performance of steel plate shear wall reinforced with PET-infilled diagonal CFRP multi-layer corrugated plate","authors":"Chu Zhao , Jinguang Yu , Weihui Zhong","doi":"10.1016/j.tws.2025.113968","DOIUrl":"10.1016/j.tws.2025.113968","url":null,"abstract":"<div><div>To further improve the buckling-restrained effect of carbon fiber reinforced polymer (CFRP) components, several new diagonal CFRP corrugated plate-steel plate composite shear walls are proposed. Taking the conventional steel plate shear wall (SPSW) and the diagonal CFRP corrugated plate-steel plate composite shear wall with adhesive connection (number: S-FRP-A) as the baselines, the diagonal CFRP double-layer corrugated plate-steel plate composite shear wall (number: S-DFRP) and the polyethylene terephthalate (PET) -infilled diagonal CFRP corrugated plate-steel plate composite shear wall (number: S-FRP-PET) with adhesive-bolt hybrid connection are introduced. Then, the seismic performances of the four SPSW structures are compared by the quasi-static cyclic test, and the finite element (FE) analysis is conducted to suggest optimized design schemes. The test results demonstrate that the restrained scheme S-FRP-A reduces the absolute values of the maximum out-of-plane deformation in wall plate by 29.67 %, while the schemes S-DFRP and S-FRP-PET achieve reductions of 63.24 % and 69.91 %. The schemes S-DFRP and S-FRP-PET increased the initial stiffnesses of SPSWs by 17.32 % and 30.78 %, where the scheme S-FRP-PET increased the displacement ductility coefficients and cumulative energy dissipation by 30.81 % and 25.44 %. The FE analysis recommends the PET-infilled full CFRP double-layer corrugated plate-steel plate composite shear wall with trapezoidal corrugated sections as the optimized design scheme.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113968"},"PeriodicalIF":6.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097419","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

Free vibration analysis of FGM non-coplanar plate assemblies with arbitrary boundary conditions through a novel analytic method 用一种新的解析方法分析任意边界条件下FGM非共面板组件的自由振动

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-09 DOI: 10.1016/j.tws.2025.113958

Kun Xie , Yaqi Tian , Cong Zhang , Meixia Chen

{"title":"Free vibration analysis of FGM non-coplanar plate assemblies with arbitrary boundary conditions through a novel analytic method","authors":"Kun Xie , Yaqi Tian , Cong Zhang , Meixia Chen","doi":"10.1016/j.tws.2025.113958","DOIUrl":"10.1016/j.tws.2025.113958","url":null,"abstract":"<div><div>A novel analytic model is proposed for free vibration analysis of FGM non-coplanar plate assemblies with arbitrary boundary conditions. To establish the governing equation, the titled structures are firstly decomposed to several independent rectangular plates. The first-order shear deformation theory (FSDT) and the superposition method are employed, and both out-of-plane and in-plane displacements and forces are simultaneously expressed as some unknowns. Then, continuity conditions at coupling edges are utilized to assemble all plates, and displacements at other edges are restrained by artificial springs. By virtue of the orthonormal properties of trigonometric functions, continuity and boundary conditions become a series of algebraic equations, which are integrated to form the final governing equation. To evaluate the accuracy and application, natural frequencies of four different models are compared, and present results agree well with ones of the literature, finite element method and modal testing. Furthermore, influences of material parameters, elastic boundary conditions and discontinuity conditions are carried out. The results reveal that major differences between FGM and homogenous L-shaped plates are natural frequencies and mode shapes keep unchanged. The increase of coupling angle can efficiently increase natural frequencies as the coplanar plate becomes non-coplanar L-shaped one, and natural frequencies slightly change as the nonzero coupling angle further increases. Three discontinuity conditions including the coupling angle, coupling location and thickness can obviously affect natural frequencies of L-shaped plates.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113958"},"PeriodicalIF":6.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145050342","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

Temperature and time dependences of fragment generation and out-of-plane deformation in fractured tempered glass laminates 破碎钢化玻璃层合板碎片生成及面外变形的温度和时间依赖性

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-09 DOI: 10.1016/j.tws.2025.113959

Dongdong Xie , Jian Yang , Xing-Er Wang , Yige Wang , Zhufeng Pan , Chenjun Zhao

{"title":"Temperature and time dependences of fragment generation and out-of-plane deformation in fractured tempered glass laminates","authors":"Dongdong Xie , Jian Yang , Xing-Er Wang , Yige Wang , Zhufeng Pan , Chenjun Zhao","doi":"10.1016/j.tws.2025.113959","DOIUrl":"10.1016/j.tws.2025.113959","url":null,"abstract":"<div><div>The fragment number and out-of-plane deformation in tempered glass laminated with temperature- and time-dependent interlayers, which are important results after glass breakage, significantly affect the tension stiffening effect in post-fracture laminated glass (LG) and its geometrical imperfection, respectively. This paper explored the two objective physical quantities based on the fragmentation experiment. The study would contribute to the performance assessment and prediction of LG in the Post Fracture Limit State. The ionomer (SentryGlas®, SG), modified ethylene-vinyl acetate (PVE®), and PVE-based composite interlayers (SGE®) were considered. The testing temperatures were set at 20 °C, 50 °C, and 80 °C. Besides, long-term monitoring of the examined objectives was conducted based on voice recording and distance measurement. The results reveal that a stiffer interlayer can restrict the fragment generation and number in LG compared with monolithic glass (MG), whereas the influence weakens with increasing temperature. The fragment number in SG LG decreases by 30.91 % and 27.98 % compared to MG with the same surface stress at 20 °C and 50 °C, respectively. In addition, the temperature rise for all series and the thicker polycarbonate layer for SGE series result in decreased out-of-plane deformation. The stiffer SGE has a weaker restriction on the fragment number. Furthermore, the fragment number gradually increases due to the generation of secondary cracks. The increase within the first 15 min after glass fracture becomes more pronounced as the temperature rises. The time dependence of fracture-induced out-of-plane deformation in LG exhibits complicated patterns, where the variation trend at 20 °C is contrary to that observed at 50 °C and 80 °C.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113959"},"PeriodicalIF":6.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145050341","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 study on ballistic performance of a sandwich composite plate with biomimetic tendon basalt filament bundles (SCP-BTBFB) 仿生肌腱玄武岩纤维束夹心复合材料板（SCP-BTBFB）弹道性能的实验与数值研究

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-09 DOI: 10.1016/j.tws.2025.113960

Yanyan Chu , Jingyu Xu , Xucai Wang , Baokun Zhu , Tao Peng , Yue Zhang , Jinhaitong Zou , Zhao Zhang , Chenhui Jiao , Chaoying Mao

{"title":"Experimental and numerical study on ballistic performance of a sandwich composite plate with biomimetic tendon basalt filament bundles (SCP-BTBFB)","authors":"Yanyan Chu , Jingyu Xu , Xucai Wang , Baokun Zhu , Tao Peng , Yue Zhang , Jinhaitong Zou , Zhao Zhang , Chenhui Jiao , Chaoying Mao","doi":"10.1016/j.tws.2025.113960","DOIUrl":"10.1016/j.tws.2025.113960","url":null,"abstract":"<div><div>Currently, basalt fiber provides a solid support for protective effects due to its high mechanical properties, and its excellent ballistic protection capability is particularly in line with the core requirements of this field. Meanwhile, it also possesses the characteristics of low cost, environmental friendliness and diverse environmental adaptability, thus becoming an ideal alternative to traditional composite materials in the current ballistic protection field. This study developed a sandwich composite plate with biomimetic tendon basalt filament bundles (SCP-BTBFB), using basalt filament bundles as the core and CFRP as face panels. Ballistic impact experiments (7.62 mm pistol bullets, 445 m/s initial velocity) and Abaqus simulations systematically investigated the effects of core height (5–20 mm), impact position, and winding fibers (UHMWPE, Aramid, LCP) on ballistic performance. Results show increasing core height enhances stiffness and reduces residual velocity, with 12.5 mm core achieving optimal SEA (4 J/g). Impacting four filament bundles yields highest energy absorption efficiency (damage volume as a key factor). Aramid-wrapped cores show maximum energy absorption (365.6 J) due to high impact toughness. The study reveals damage mechanisms: front panel shear failure, core filament fracture/extrusion, and rear panel delamination/warping, confirming that synergies between core microstructure and fiber properties are critical for ballistic performance, providing a basis for lightweight protective material design. Furthermore, to further optimize the structural performance, future work will adopt schemes such as modifying fiber materials, interfacial modification, and gradient core layers to further balance costs and improve performance, which is expected to provide some assistance for the field of lightweight protective materials.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113960"},"PeriodicalIF":6.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145050340","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

Stiffness modelling and dynamics analysis of a deployable tubular structure inspired by Yoshimura origami 受吉村折纸启发的可展开管状结构的刚度建模和动力学分析

IF 6.6 1区工程技术

Thin-Walled Structures Pub Date : 2025-09-09 DOI: 10.1016/j.tws.2025.113966

Boyan Chang , Jiahao Cui , Shuai Mo , Dong Liang , Guoguang Jin , Yuhan Gao

{"title":"Stiffness modelling and dynamics analysis of a deployable tubular structure inspired by Yoshimura origami","authors":"Boyan Chang , Jiahao Cui , Shuai Mo , Dong Liang , Guoguang Jin , Yuhan Gao","doi":"10.1016/j.tws.2025.113966","DOIUrl":"10.1016/j.tws.2025.113966","url":null,"abstract":"<div><div>Origami has been utilized to build deployable structures through folding and unfolding along the creases. These structures are usually flexible during the deploying process, leading to an unstable state that can not maintain its deployed state under loading. In this paper, a tubular truss inspired by Yoshimura origami is extracted and stiffness model is established to reveal the relationship between the load and the deformation. The analytical predictions show good agreement with ANSYS simulations and a set of optimal geometric parameters are obtained for designing the deployable tubular structure, which can be collapsed along two different paths from the supporting state. One path with high stiffness is selected to bear heavy load and another path with zero stiffness is chosen to achieve the function of deployable motion. The selective deployability and collapsibility are analyzed and demonstrated by experiments and dynamic simulations based on Lagrange equation. Both theoretical and experimental results demonstrate that the proposed structure not only significantly enhances the load-bearing capacity in the supporting state without dedicated locking devices but also reduces the driving force required for deployment. The principle in this work can be utilized to create versatile origami-inspired deployable structures that can find many applications.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"218 ","pages":"Article 113966"},"PeriodicalIF":6.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097060","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