Thin-Walled Structures最新文献

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

IF 5.7 1区工程技术

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

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

{"title":"Improving porosity distribution and mechanical performance of multilayer sandwich composites using a new strategy of gradient curing cycles during internal thermal expansion molding process","authors":"Yunfei Peng, Maojun Li, Xujing Yang, Bingjie Sun, Shilong Lv","doi":"10.1016/j.tws.2025.113244","DOIUrl":"10.1016/j.tws.2025.113244","url":null,"abstract":"<div><div>This work introduces a novel gradient curing cycle strategy for optimizing resin impregnation flow in the internal thermal expansion molding process, aimed at significantly improving porosity distribution and enhancing mechanical performance. The proposed strategy meticulously aligns the foaming characteristics of thermal expansion foam with the curing behavior of prepregs, effectively surpassing conventional curing temperature limitations. By allowing a controlled temperature hold above the resin gelation point, this approach leverages continuous and stable foam expansion to achieve superior results. A key innovation of this work lies in demonstrating the capability of the gradient curing cycle to produce CFRP with ultra-low porosity levels as low as 0.1 % sandwich composite structures. This advancement enables a systematic investigation into the spatial evolution of inter-bundle voids and elucidates the underlying mechanism for void suppression. Furthermore, the strategy enhances the bending fracture toughness and shear strength of CFRP by 22.6 % and 6.5 %, respectively, marking a significant leap in performance compared to traditional internal thermal expansion molding methods. The findings of this work establish a solid foundation for extending the application of complex components fabricated via the internal thermal expansion molding process to more demanding operational environments and increasingly complex working conditions.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113244"},"PeriodicalIF":5.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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

IF 5.7 1区工程技术

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

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

{"title":"Analytical, experimental, and numerical analyses of the buckling of composite ring-stiffened steel cylinders","authors":"Huayong Chang , Lihui Wang , Yunsen Hu , Chao Kang , Kechun Shen , Jian Zhang","doi":"10.1016/j.tws.2025.113175","DOIUrl":"10.1016/j.tws.2025.113175","url":null,"abstract":"<div><div>In the current research, the buckling loads and modes of composite ring-stiffened steel cylinders were studied when subjected to hydrostatic pressure. Analytical formulas for forecasting the linear buckling load of ring-stiffened cylinders were derived and validated. Moreover, numerical and response surface analyses were conducted to determine the nonlinear knockdown factor (<em>K<sub>non</sub></em>). Pairs of nominally identical ring-stiffened and unreinforced steel cylinders were manufactured, measured, and tested, and corresponding numerical models were developed. The results from the analytical, experimental, and numerical studies were consistently in agreement. Reinforcement with composite ring stiffeners enhanced the experimental buckling loads by 258.8 % but increased weight by only approximately 17 %. Parametric analyses were also conducted to assess the impact of the composite ring's thickness and width on nonlinear buckling loads and postbuckling modes. Although the composite ring stiffeners enhanced the global structural stability and load capacity of plain cylinders, they also caused transitions in the postbuckling mode from global buckling to coupled, inter-ring, or mono-cell buckling.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113175"},"PeriodicalIF":5.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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

IF 5.7 1区工程技术

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

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

{"title":"Local-global buckling behaviours of axially compressive welded I-section steel columns with local corrosion","authors":"Xinhao Han , Chen Jia , Qing Hu , Changyong Liu , Tianhao Xiang","doi":"10.1016/j.tws.2025.113239","DOIUrl":"10.1016/j.tws.2025.113239","url":null,"abstract":"<div><div>Welded I-section steel exposed to harsh environments is highly susceptible to corrosion, with local corrosion being particularly common and detrimental. Local corrosion causes uneven changes in plate thickness, leading to increased stress concentration and premature buckling in corroded regions, and a subsequent compromise in the stability. However, the influence of local corrosion on the buckling behaviours has not been clarified in prior research. This paper addresses this gap by designing and testing 12 welded I-section steel columns with simulated local corrosion (varying slenderness ratios, corrosion locations, corrosion depths and corrosion dimensions) under axial compression. Electrochemical accelerated corrosion tests were conducted to effectively simulate local corrosion, and the corrosion morphology was assessed using three-dimensional scanning technology. Axial compression tests were then conducted to study the influence of local corrosion on failure modes, load-displacement curves and cross-sectional strain development of corroded steel columns. Additionally, finite element (FE) models incorporating the scanned corrosion morphology were established and validated against test results for parametric analysis. The key parameters included geometric dimensions (slenderness ratio, width-to-thickness ratio, and thickness ratio) and corrosion region characteristics (location, depth, and dimension). Both experimental and numerical results revealed that local corrosion altered the buckling modes and decreased the residual resistance of the welded I-section steel columns under axial compression. Furthermore, the equivalent thickness and initial eccentricity coefficient were defined and incorporated into the existing codified approaches for predicting the residual resistance of welded I-section steel columns with local corrosion under axial compression.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113239"},"PeriodicalIF":5.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear buckling and post-buckling of multilayered piezoelectric graded porous circular nanoplates considering of surface/interface effects

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-24 DOI: 10.1016/j.tws.2025.113236

Qinglu Li , Xiaojie Niu , Zhaoyi Pan , Jinghua Zhang

{"title":"Nonlinear buckling and post-buckling of multilayered piezoelectric graded porous circular nanoplates considering of surface/interface effects","authors":"Qinglu Li , Xiaojie Niu , Zhaoyi Pan , Jinghua Zhang","doi":"10.1016/j.tws.2025.113236","DOIUrl":"10.1016/j.tws.2025.113236","url":null,"abstract":"<div><div>The special characteristics of surfaces and interfaces significantly influence the durability and performance of materials. For the first time, this article introduces surface and interface effects into Kirchhoff thin plate theory to study the buckling and nonlinear post-buckling behavior of multilayer piezoelectric porous nanostructures. The bulk structure is a graded porous material and pores are embedded in the plate in two cosine forms of non-uniform porosity distribution with a pair of piezoelectric layers surface bonded on both sides of the bulk surface. Then, classical plate theory, combined with minimum potential energy principle, is utilized to derive the post-buckling governing equation coupling the piezoelectric effect. A shooting method is presented to obtain the buckling and post-buckling numerical solutions. The numerical results obtained reveal that the surface and interface effects, along with the applied potential, significantly influence the stability of multilayer piezoelectric graded porous circular nanoplates to varying extents.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113236"},"PeriodicalIF":5.7,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716202","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

Mechanical properties of a novel mechanical metamaterial with multi-stable and mono-stable characteristics

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-24 DOI: 10.1016/j.tws.2025.113230

Min Sun , Zhiwei Qiu , Qiang Chen , Hongshuai Lei , Xia Hua , Zheng Zhang , Yi Song , Shaofei Jiang , Diyong Huang , Haonan Fu

{"title":"Mechanical properties of a novel mechanical metamaterial with multi-stable and mono-stable characteristics","authors":"Min Sun , Zhiwei Qiu , Qiang Chen , Hongshuai Lei , Xia Hua , Zheng Zhang , Yi Song , Shaofei Jiang , Diyong Huang , Haonan Fu","doi":"10.1016/j.tws.2025.113230","DOIUrl":"10.1016/j.tws.2025.113230","url":null,"abstract":"<div><div>This study designed a novel mechanical metamaterial with multi-stable and mono-stable characteristics, fabricated using carbon fiber composite through a hot-pressing process. The mechanical properties of the designed mechanical metamaterial were obtained through quasi-static compression tests, and the effects of structural geometric parameters on its mechanical performance were analyzed. The finite element model of the mechanical metamaterial was established, and the comparison between the simulation and experiment results showed good agreement. A torque test platform was constructed to measure the torque for transitions between the multi-stable and mono-stable characteristics. The results indicate that transitioning from mono-stable to multi-stable characteristics requires a higher torque than transitioning from multi-stable to mono-stable characteristics. The designed mechanical metamaterial has both multi-stable and mono-stable characteristics, which have potential for a wide range of applications in the field of impact energy absorption as well as vibration attenuation.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113230"},"PeriodicalIF":5.7,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726107","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

Data orbits similarity conversion law of scaled-down model tests of ship structures under strong impact loads

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-24 DOI: 10.1016/j.tws.2025.113235

Xiongliang Yao , Renjie Huang , Kun Zhao , Yongran Yin

{"title":"Data orbits similarity conversion law of scaled-down model tests of ship structures under strong impact loads","authors":"Xiongliang Yao , Renjie Huang , Kun Zhao , Yongran Yin","doi":"10.1016/j.tws.2025.113235","DOIUrl":"10.1016/j.tws.2025.113235","url":null,"abstract":"<div><div>The model test under strong impact loads constitutes a transient, strongly nonlinear, and non-stationary physical process that exhibits extreme sensitivity to system parameters, boundary conditions, and initial conditions. A minor perturbation induces bifurcation and abrupt changes in system dynamics, resulting in output uncertainty for model tests and significant challenges in achieving similarity conversion between models and prototypes. In this paper, the second law of similarity is applied to construct data orbits of impact responses for characterizing kinematic system evolution, and a principle of topologically conjugate conversion for similar systems in phase space is proposed. Through phase space reconstruction methodology, the kinematic evolution patterns of acceleration responses in ship structures under strong impact loads are investigated, with mapping functions of acceleration response data orbits derived in phase space. A similarity equation for model-to-prototype conversion is established based on the topologically conjugate conversion principle. Theoretical analysis demonstrates the rationality of introducing prediction coefficients in distortion models, while fundamental conditions for achieving similarity conversion in nonlinear dynamical systems are formulated. Finally, the numerical results from the single-layer reinforced plate rack and cabin section show that the data orbits corresponding to the acceleration responses of the 1:2 scaled model and the prototype have the same symbol sequences in the phase space under satisfying the similarity conversion condition, which verifies the correctness of the similarity conversion of data orbits for the scaling model test of the ship structures under the strong impact loads.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113235"},"PeriodicalIF":5.7,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704857","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 study of non-reinforced thin-walled concrete-filled double skin steel tubular bridge columns with socket connection

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-24 DOI: 10.1016/j.tws.2025.113231

Jiang Yi , Fuxiang Zhu , Wenjing Xu

{"title":"Experimental study of non-reinforced thin-walled concrete-filled double skin steel tubular bridge columns with socket connection","authors":"Jiang Yi , Fuxiang Zhu , Wenjing Xu","doi":"10.1016/j.tws.2025.113231","DOIUrl":"10.1016/j.tws.2025.113231","url":null,"abstract":"<div><div>A novel non-reinforced thin-walled concrete-filled double skin steel tubular (NRTW-CFDST) structure with a socket connection is proposed for bridge columns. The advantages of this column include the absence of reinforcement, elimination of formwork installation and removal, and ease of customization, making it ideal for the rapid construction of short-line bridge piers with individualized size and height. Through experiments and finite element simulation analysis, the bending capacity and seismic performance of connection joints are investigated, and design recommendations for the novel column are provided. Experimental results indicate that the failure mode of the column is characterized by concrete crushing due to bending at the plastic hinge, and the full hysteresis curves indicate its good seismic performance. Importantly, the joints remained undamaged, demonstrating a significant reserve of bending capacity. For optimal performance, it is recommended to use a socket depth of 1.0 D to 1.2 D (D is the column section width) and a 6 mm thick base end plate. This configuration ensures adequate bending stiffness of the pier structure and a reasonable failure location at the plastic hinge.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113231"},"PeriodicalIF":5.7,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716199","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

Nonlinear response of high-strength cold-formed steel built-up members subject to cyclic compression

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-24 DOI: 10.1016/j.tws.2025.113233

Shin Rui Kho , Adeline Ling Ying Ng , Daniel Ting Wee Looi , Hieng Ho Lau , Emad Gad , Krishanu Roy

{"title":"Nonlinear response of high-strength cold-formed steel built-up members subject to cyclic compression","authors":"Shin Rui Kho , Adeline Ling Ying Ng , Daniel Ting Wee Looi , Hieng Ho Lau , Emad Gad , Krishanu Roy","doi":"10.1016/j.tws.2025.113233","DOIUrl":"10.1016/j.tws.2025.113233","url":null,"abstract":"<div><div>Cold-formed steel (CFS) built-up sections have attracted attention for their enhanced strength and stability over single channels. While previous research has focused on the axial behaviour of CFS built-up sections under monotonic compression, studies on their cyclic performance are limited. Cyclic actions can affect the material properties and potentially cause early failure, making it crucial to understand the cyclic behaviours of CFS built-up sections. This research examined the cyclic responses of G550 high-strength CFS built-up compression members through experimental and numerical investigations. Different built-up sections, such as open-lipped built-up sections (OL series) and closed-unlipped built-up sections (CU series), composed of various section sizes and screw spacings, were studied. These proposed parameters assessed the influence of the member slenderness and section slenderness on the CFS built-up sections with thin-walled profiles. The results demonstrated that the cyclic actions have little influence on the structural performance of the CFS built-up sections at the pre-peak stage. At the post-peak stage, a faster degradation in strength and stiffness was observed for specimens with greater member slenderness and section slenderness. Moreover, the increase in section slenderness leads to higher axial ductility for the CU series but minimal influence on the OL series. Furthermore, a greater member slenderness leads to smaller energy dissipation capacity, especially for the specimens with smaller section slenderness. The OL series is recommended to be designed as a strength-control element that provides structural stability and integrity, such as primary columns. In contrast, the CU series can be used as the sacrificial element to dissipate energy, such as lateral bracing in the framing system, to minimise the risk of catastrophic collapse subject to extreme loadings such as typhoons or earthquakes.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113233"},"PeriodicalIF":5.7,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716089","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}

引用次数: 0

Seismic performance of damaged steel-concrete shear wall with prestressed diagonal bracing repaired by CFRP strips

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-24 DOI: 10.1016/j.tws.2025.113234

Jian-Gui Qin , Jie Tian , Yi-Xin Mai , Kai Qian , Xiao-Fang Deng

{"title":"Seismic performance of damaged steel-concrete shear wall with prestressed diagonal bracing repaired by CFRP strips","authors":"Jian-Gui Qin , Jie Tian , Yi-Xin Mai , Kai Qian , Xiao-Fang Deng","doi":"10.1016/j.tws.2025.113234","DOIUrl":"10.1016/j.tws.2025.113234","url":null,"abstract":"<div><div>To investigate the seismic performance of damaged steel-concrete shear wall with prestressed diagonal bracing repaired by Carbon Fiber Reinforced Polymer (CFRP) strips. Three steel-concrete shear walls with diagonal bracing seriously damaged by low reversed cyclic loading were repaired by replacing damaged concrete, repairing diagonal bracing, restoring buckled reinforcements, and wrapping walls with CFRP strips. The seismic performance of the repaired specimens was evaluated using the same quasi-static test as for the original specimens. The seismic performance including the failure modes, deformation capacity, bearing capacity, energy dissipation, stiffness degradation, and bearing capacity degradation of the repaired specimens were researched in the study. Experimental results show that the used repair schemes effectively restore specimens’ bearing capacity, ductility, and energy dissipation, as well as enhancing deformation capacity. Applying an \"X\"-shaped CFRP repair scheme which aligned with the direction of the bracing can effectively compensates for the reductions of stiffness and bearing capacity due to cyclic loading. Compared to shear wall with smooth steel tubes as diagonal bracing, those with threaded reinforcements create a stronger mechanical interlocking effect between the bracing and concrete. This enhanced synergy interaction increases the effective shear resistance section in the midsection of the wall panel, thereby forming a more efficient diagonal load transfer mechanism. Therefore, shear damage can be avoided in the middle of the wall limb. Additionally, the study presents the theoretical calculation model for the original and the repaired shear walls, and the comparison of the calculation results with test results demonstrates that the calculation model has high computational accuracy.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113234"},"PeriodicalIF":5.7,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716201","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

Axial Performance of a New Self-Locking and Rapid-Unlocking Inter-Module Connection for Modular Steel Construction

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-03-22 DOI: 10.1016/j.tws.2025.113202

Jun-Yi Lian , Wen-Yuan Zhang , Yu-Kun Ding , Andrew William Lacey , Wensu Chen

{"title":"Axial Performance of a New Self-Locking and Rapid-Unlocking Inter-Module Connection for Modular Steel Construction","authors":"Jun-Yi Lian , Wen-Yuan Zhang , Yu-Kun Ding , Andrew William Lacey , Wensu Chen","doi":"10.1016/j.tws.2025.113202","DOIUrl":"10.1016/j.tws.2025.113202","url":null,"abstract":"<div><div>Module-to-module connections are critical for assembly and disassembly efficiency of modular steel constructions, particularly for temporary modular buildings. However, existing module-to-module connections fail to meet the requirements of both Self-Locking and Rapid-Unlocking (SelRU) at the same time. To address this issue, this paper proposes an innovative SelRU inter-module connection featuring a self-locking mechanism inspired by door lock and a disassembly method using an unlocking tool inserted from the top of the modular column. Firstly, the assembly and disassembly processes were assessed using 3D-printed prototype and steel prototype. Three specimens with different loading protocols and heights of the lock cylinder were employed to investigate the axial performance of the proposed connection. The functional feasibility and efficiency during disassembly and reassembly were evaluated qualitatively and quantitatively. In addition, finite element models were developed and validated against the experimental results. The initiation and propagation of plastic deformation of the proposed connection under tension were revealed by analyzing the distribution and development of equivalent plastic strain at the specific points on the latch bolt and lock cylinder. Then, the effect of steel grade and diameter of lock cylinder, height of strike plate, width of latch bolt, thickness and steel grade of upper end plate on the nominal yield load, ultimate load and the stiffness of the SelRU connection under tension were discussed. Finally, a theoretical model of the proposed connection under tensile load was developed and validated against experimental and numerical results.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113202"},"PeriodicalIF":5.7,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726109","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