Thin-Walled Structures最新文献

{"title":"Multi-scale analysis of mechanical properties and failure behavior of SiCf/Ti composite thin-walled tubes under compression loading","authors":"Peng Zhu ,&nbsp;Qiuyue Jia ,&nbsp;Yumin Wang ,&nbsp;Li Zhou","doi":"10.1016/j.tws.2025.113293","DOIUrl":"10.1016/j.tws.2025.113293","url":null,"abstract":"<div><div>SiC_f/Ti composite thin-walled tubes exhibit a variety of fracture modes due to their complex structures and intricate manufacturing process, limiting their application. Specifically, accurate prediction of failure behavior is crucial for improving the performance of SiC_f/Ti composite thin-walled tubes. In this study, a generic multi-scale analytical model was established to evaluate the mechanical properties and failure behavior of SiC_f/Ti composite thin-walled tubes under uniaxial compression, and damage evolution and stress distribution at two scales were analyzed. At the macroscopic level, a three-dimensional Hashin-based orthotropic damage model was implemented through a user-defined subroutine (VUMAT), including damage initiation, stiffness degradation, and constitutive relationships. At the mesoscopic level, three mesoscopic models of different fiber distributions were developed based on random sequential addition (RSA) algorithm and representative volume element (RVE), and the mechanical behavior of the fiber/matrix interface was characterized by cohesive zone model (CZM). Subsequently, the nodal displacement of the macroscopic model was imposed on the mesoscopic model as the boundary condition, forming a strong coupling relationship at different scales. Furthermore, the influence of interfacial modeling approach on the buckling behavior and mechanical properties was particularly considered, and the interactions among capsule yield strength, capsule thickness, and fiber distribution were also integrated to discuss their effects on the damage evolution and stress distribution of SiC_f/Ti composite thin-walled tubes. The results indicate that the multi-scale model can accurately capture the crack initiation, propagation and failure in SiC_f/Ti composite thin-walled tubes. Moreover, the overall strength of SiC_f/Ti composite thin-walled tubes can be significantly improved as the capsule strength increases or the outer capsule thickness increases. Notably, the stress variation along the axial direction of the composite core is similar to that of the inner capsule, while the outer capsule exhibits an opposite stress trend. The multi-scale method proposed in this work provides a fresh perspective for the design of SiC_f/Ti composites thin-walled tubes.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113293"},"PeriodicalIF":5.7,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828663","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}

{"title":"Dynamic modeling and vibration control evaluation of grid composite sandwich plates with TSVM and SMAs","authors":"Hui Li ,&nbsp;Zhihan Dai ,&nbsp;Zhou Qiao ,&nbsp;Jin Zhou ,&nbsp;Haijun Wang ,&nbsp;Kaixiang Li ,&nbsp;Fei Zhang ,&nbsp;Hongbo Cui ,&nbsp;Jinghan Li ,&nbsp;Haiyang Zhang ,&nbsp;Hang Cao ,&nbsp;Xiangping Wang ,&nbsp;Zhongwei Guan","doi":"10.1016/j.tws.2025.113280","DOIUrl":"10.1016/j.tws.2025.113280","url":null,"abstract":"<div><div>This paper proposes a novel dynamic model of a grid composite sandwich plate (GCSP) embedded with temperature sensitive viscoelastic material (TSVM) and shape memory alloys (SMAs), which consists of a grid functional core and two fiber-reinforced polymer skins. This core comprises a rectangular frame and several grid functional units (FUs), in which each FU is composed of a grid frame, tightened SMAs and a piece of TSVM to actively control stiffness and damping by adjusting the internal temperature. The dynamic equations are derived to solve the vibration parameters of the TSVM-SMAs-GCSP, with the recovery stress produced by SMAs in each FU and the temperature-dependent material parameters of TSVM being defined in advance. Furthermore, using a TSVM-SMAs-GCSP specimen with six FUs as an example, the preparation method is illustrated. To validate the proposed model and active control performance, vibration tests with varying control temperatures and zones of FUs are conducted on this specimen, employing impact hammer, swept-sine excitation, and both non-resonant and resonant excitation techniques. Finally, the influences of critical structural and control parameters on natural frequencies, damping ratios and resonant responses are evaluated, with valuable suggestions being summarized to highlight the active control capability of such a structure.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"214 ","pages":"Article 113280"},"PeriodicalIF":5.7,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874765","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}

{"title":"Study on bending-after-impact performance of composite sandwich structural batteries","authors":"Xiaochen Wang ,&nbsp;Yuxiang Shang ,&nbsp;Zhenkun Lei ,&nbsp;Yingming Wang ,&nbsp;Minghui Lu ,&nbsp;Sheng Feng ,&nbsp;Ruixiang Bai ,&nbsp;Cheng Yan","doi":"10.1016/j.tws.2025.113240","DOIUrl":"10.1016/j.tws.2025.113240","url":null,"abstract":"<div><div>Embedding lithium-ion batteries into composites creates a multifunctional structure that integrates the mechanical load-bearing capacity of composites with the energy storage and power supply of battery. Which effectively reduces the mass of currently available batteries and expands the usable space, presenting an ideal solution for next-generation energy transmission. Ensuring the mechanical load-bearing capacity and electrochemical stability of this structure after impact is crucial for its performance. This study investigates the impact response and residual performance of lithium-ion batteries embedded in composite sandwich structures. The force-electrical coupling behaviors during low-speed impact and bending-after-impact (BAI) were analyzed. Experimental results indicate that micro-short circuits may occur during the impact process of embedded lithium batteries, but they maintain good energy storage capacity during transient impact and BAI. Charge-discharge cycle tests show that with increasing impact energy, battery capacity damage increases, yet stable electrochemical performance is retained during bending. A developed numerical simulation framework validated the structural damage mechanisms under different impact energies, revealing the dynamic response and energy absorption characteristics of composite structures with embedded batteries. This study demonstrates that the composite sandwich structures with embedded batteries exhibit excellent impact resistance and post-impact energy storage capabilities, offering both theoretical and experimental support in new energy vehicles.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113240"},"PeriodicalIF":5.7,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821101","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}

{"title":"CFRP-strengthened shear walls: Seismic testing, structural behavior and size effect","authors":"Binlin Zhang ,&nbsp;Liu Jin ,&nbsp;Ou Zhao ,&nbsp;Fengjuan Chen ,&nbsp;Xiuli Du","doi":"10.1016/j.tws.2025.113277","DOIUrl":"10.1016/j.tws.2025.113277","url":null,"abstract":"<div><div>This study investigates the size effect on the seismic performance of Carbon Fiber Reinforced Polymer (CFRP)-strengthened shear walls through experimental and analytical approaches. Twelve CFRP-strengthened shear wall specimens with varying widths (600 mm to 1800 mm) and CFRP ratios (0.00 % to 0.21 %) were tested. The results revealed that both nominal shear strength and seismic performance indicators exhibited size-dependent behavior. Specifically, as wall width increased from 600 mm to 1800 mm, the nominal shear strength decreased by up to 40.0 %, while ductility and energy dissipation factors were reduced by 51.2 % and 45.3 %, respectively. Additionally, with an increasing CFRP ratio, the nominal shear strength increases, while the size effect gradually diminishes. Based on these findings, size-dependent formulas were established to describe the influence of structural size and CFRP ratio on the nominal shear strength of CFRP-strengthened shear walls.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113277"},"PeriodicalIF":5.7,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817151","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}

{"title":"Fluid-structure interaction characteristics of tension membrane structures under free-vibration and forced-vibration based on numerical simulation","authors":"Feixin Chen ,&nbsp;Tian Li ,&nbsp;Qingshan Yang","doi":"10.1016/j.tws.2025.113290","DOIUrl":"10.1016/j.tws.2025.113290","url":null,"abstract":"<div><div>Tension membrane structures are apt to experience severe vibration under wind action, and may undergo substantial fluid-structure interactions (FSI). Accurate consideration of the FSI effects in the wind-induced response of such structures is critical for their response estimation. Motion-induced aerodynamic force model established by forced-vibration testing is widely used to estimate the wind-induced response considering FSI effects of flexible structures, and is regarded as an efficient substitute for the technically demanding and costly free-vibration test. Nevertheless, the accuracy and applicability of the motion-induced force model on the response estimation of tension membrane structures under wind remain uncertain, due to the strong nonlinearity in wind-induced response of such structures. In this research, a systematic comparison of wind-induced response obtained by free-vibration test and estimated by the motion-induced aerodynamic model established by forced-vibration test is performed for tension membrane structure based on numerical simulations. A closed-type, one-way tensioned flat membrane structure is determined to be the object due to its relatively idealized geometric configuration. Fully-coupled simulations are utilized for the free-vibration model and validated against the reference aeroelastic experimental results, and complementary forced-vibration simulations are performed to establish the motion-induced aerodynamic force model. It is found that the displacement responses of tension membrane structure estimated by motion-induced aerodynamic force model agrees well with those obtained from free-vibration test, while discrepancies exist between forced-vibration model and free-vibration model in the distribution of fluctuating pressures above the membrane. Energy transfer analysis and proper orthogonal decomposition (POD) analysis on the FSI system show that the discrepancies mainly arise from the disturbance and weakening of the coupling between the vortex convection and structural motion of the forced vibrating model, resulting from the influence of low-order body-induced vortex shedding components.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"214 ","pages":"Article 113290"},"PeriodicalIF":5.7,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874864","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}

{"title":"Debonding interface effect and multi-field coupling of a thin piezoelectric semiconductor film bonded to elastic substrate","authors":"Xue-Qian Fang ,&nbsp;Gao-Lei Dong","doi":"10.1016/j.tws.2025.113288","DOIUrl":"10.1016/j.tws.2025.113288","url":null,"abstract":"<div><div>Piezoelectric semiconductor films possess moderate stiffness, excellent piezoelectric and semiconductor behavior and have great potential application in Micro Electromechanical Systems. To enhance the piezoelectric semiconductor property and interface strength, a theoretical model of a thin piezoelectric semiconductor film bonded to elastic substrate with debonded interface is established, and the stress and coupling fields in the piezoelectric semiconductor film and elastic substrate subjected to electric field are derived. Based on the fundamental solutions of the elastic substrate and piezoelectric semiconductor film, the governing integro-differential equations of the model are investigated and numerically solved. The interfacial stresses with perfect and imperfect bonding are obtained, and the effect of piezoelectric semiconductor film on the interface response is analyzed. It is found that the interfacial shear and normal stresses are quite related to the length-thicknes ratios, material parameters, initial electron concentrations. Some methods of manipulating the interface strength of piezoelectric semiconductor films are presented. Comparison with existing results validates the solving method in this paper.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113288"},"PeriodicalIF":5.7,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821103","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}

{"title":"Testing, numerical modelling and design of S960 ultra-high strength steel welded T-section stub columns","authors":"Jinpeng Cheng ,&nbsp;Yuyin Wang ,&nbsp;Andi Su ,&nbsp;Hua Yang ,&nbsp;Ou Zhao","doi":"10.1016/j.tws.2025.113267","DOIUrl":"10.1016/j.tws.2025.113267","url":null,"abstract":"<div><div>Ultra-high strength steel (UHSS) has been successfully gaining attention in the construction field because of its superior mechanical properties (e.g., a higher strength-to-weight ratio). However, the practical applications of 960 MPa UHSS remain limited, to some extent, because of the absence of the relevant design codes. To address this issue, this paper investigates the compressive characteristics of S960 UHSS welded T-section stub columns experimentally and numerically. The initial local geometric imperfection measurements and stub column tests were then carried out on all 10 specimens. Beyond the experimental work, numerical modelling for UHSS welded T-section stub columns was conducted virtually by means of finite element (FE) models. The validated FE models were subsequently utilized in the parametric analysis to generate a comprehensive database to supplement the test results, which are used to evaluate the applicability of the relevant design clauses in European, American and Australian codes. The results of the investigations showed that (i) the codified slenderness limits in the three design codes are applicable to the S960 UHSS welded T-section and (ii) the design rules specified in all the three codes can generally provide accurate and consistent predictions of the compression resistance for S960 UHSS T-section stub columns, but still yield some conservative results for slender sections.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113267"},"PeriodicalIF":5.7,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828666","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}

{"title":"Effect of thickness-to-radius ratio on the impact response of fabric-reinforced composite shells","authors":"L.M. Ferreira ,&nbsp;C.A.C.P. Coelho ,&nbsp;P.N.B. Reis","doi":"10.1016/j.tws.2025.113279","DOIUrl":"10.1016/j.tws.2025.113279","url":null,"abstract":"<div><div>This study analyses the effect of thickness-to-radius (<em>t/R</em>) ratio on the dynamic response of fabric-reinforced composite shells subjected to low-velocity impact loads using 3D finite element models validated by experimental results. Focus is given to the <em>t/R</em> ratio's influence on energy dissipation and damage modes. For thick-walled shells (<em>t/R</em> &gt; 0.05) the peak force and contact time increases as the curvature decreases (i.e., with a larger radius), while the maximum displacement decreases. On the other hand, thin-walled shells (<em>t/R</em> &lt; 0.05) exhibit lower peak forces, larger displacements, and longer contact times as the curvature decreases. This transition indicates the existence of a critical point around the radius of 50 mm (<em>t/R</em> = 0.05). The main mechanism for energy dissipation in thick-walled shells is intralaminar damage, and its contribution decreases with increasing radius, whereas for thin-walled shells, friction and delamination determine the absorption of impact energy. In terms of damage propagation patterns, thick-walled shells show localized intra- and interlaminar damage, while thin-walled shells evidence a cross-like intralaminar pattern with more extensive delamination.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113279"},"PeriodicalIF":5.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817149","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}

{"title":"Dynamic response and energy transfer of polyurea-coated capsule-shaped liquid storage containers under blast loads","authors":"Yanghao Cao,&nbsp;Chong Ji,&nbsp;Yuting Wang,&nbsp;Xin Wang,&nbsp;Gang Wu,&nbsp;Haojie Zhu,&nbsp;Changxiao Zhao","doi":"10.1016/j.tws.2025.113275","DOIUrl":"10.1016/j.tws.2025.113275","url":null,"abstract":"<div><div>Experimental investigations and numerical simulations were conducted to examine the damage response characteristics of polyurea-coated 6063-T5 aluminum-alloy capsule-shaped containers with various liquid-filling rates (50%, 75%, 100%) under close-range blast loads. Experimental results demonstrated that the application of a polyurea coating to the containers reduced the diameter of the damage zone, mitigated container collapse, and decreased the failure severity compared to the cases where no coating was applied. The protective efficacy of polyurea was most pronounced at a 75% liquid-filling rate.</div><div>Numerical simulations revealed that polyurea reduced the container damage through its hyperelastic properties, inhibiting crack propagation and absorbing energy through softening effects during high-temperature, high-pressure detonation product impact. The coating decreased the collapse velocity at the blast-facing nodes and reduced the container concavity. The internal energy reduction in polyurea-coated containers reached 4.6%, 24.1%, and 8.4% for filling rates of 50%, 75%, and 100%, respectively. The protective mechanism of polyurea occurred in three phases: first, it absorbed explosion-generated energy; second, it dispersed stress at the blast-facing surface while distributing localized damage throughout the structure; and third, it partially absorbed the energy transmitted from the liquid to the container, thereby reducing secondary damage caused by the liquid impact pressure.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113275"},"PeriodicalIF":5.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817154","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}

{"title":"Underwater shaking table test and seismic fragility assessment of free-spanning submarine pipelines under offshore spatial motions","authors":"Haiyang Pan ,&nbsp;Chao Li ,&nbsp;Hong-Nan Li ,&nbsp;Jiahui Hu ,&nbsp;Ruisheng Ma","doi":"10.1016/j.tws.2025.113276","DOIUrl":"10.1016/j.tws.2025.113276","url":null,"abstract":"<div><div>Offshore seismic motions typically undergo remarkable variation at different locations of submarine pipelines due to the spatial effects of ground motions. Therefore, this paper intends to contribute to an insight into the seismic performance of FSSPs subjected to offshore spatial earthquake motions and identify the critical impacts of seismic excitation type, coherence loss effect and ground motion directionality. In view of this, a suite of underwater shaking table tests were firstly conducted to investigate the elastic seismic responses of the FSSP under offshore spatial motions. Subsequently, a response difference factor (<span><math><msub><mi>χ</mi><mrow><mi>R</mi><mo>.</mo><mi>i</mi><mi>j</mi></mrow></msub></math></span>) is defined to quantify the structural response discrepancies caused by the seismic excitation type and coherence loss effect. Then, a numerical modelling scheme for FSSP is developed and its excellent response prediction capacities are verified through shaking table test results. Based on the validated numerical model, seismic fragility curves of the FSSP are established by performing the probabilistic seismic demand analyses. Furthermore, the FSSP fragilities under different seismic inputs and coherence degrees are comprehensively compared and discussed in terms of the damage probability and fragility median PGA. Finally, the FSSP fragilities are assessed under offshore spatial motions with various horizontal incidence angles. Both experimental and numerical results consistently highlight the significance of considering the seismic excitation type and coherence loss effect in seismic performance assessment of FSSPs. Additionally, as the seismic incidence angle gradually increases, the FSSP fragilities increases first and then decreases, and the most favorable and adverse seismic incident angles are 45^° and 90^°, respectively. This study can contribute to a valuable reference for realistically evaluating the seismic performance of FSSPs subjected to offshore spatial earthquake motions.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"213 ","pages":"Article 113276"},"PeriodicalIF":5.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828820","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}