Thin-Walled Structures最新文献_第5页

Elastic shear buckling analysis of infill panels in trapezoidal corrugated plate shear walls 梯形波纹板剪力墙填充板弹性剪切屈曲分析

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-14 DOI: 10.1016/j.tws.2025.113452

Chao Dou , Jie Zhang , Tao Lan , Donghao Wang , Guangwei Zhang

{"title":"Elastic shear buckling analysis of infill panels in trapezoidal corrugated plate shear walls","authors":"Chao Dou , Jie Zhang , Tao Lan , Donghao Wang , Guangwei Zhang","doi":"10.1016/j.tws.2025.113452","DOIUrl":"10.1016/j.tws.2025.113452","url":null,"abstract":"<div><div>Trapezoidal corrugated plate shear walls (TCPSWs) have been developed as an alternative to flat steel plate shear walls (FPSWs). Elastic buckling stress calculation of the infill corrugated panel is an important basis for further investigations into the elastic-plastic lateral resistant behavior. Due to the multiple buckling modes and various influencing factors, calculation of the elastic shear buckling of trapezoidal corrugated panels is much more complicated than that of flat steel plates. Although several formulas have been proposed, significant discrepancies were found compared with the finite element analysis (FEA) results. This paper further developed the critical buckling stress formulas of trapezoidal corrugated panels under shear, corresponding to the local buckling, global buckling, and interactive buckling respectively. Within the parametric range of practical engineering applications of TCPSWs, the effect of various factors on the shear buckling modes and corresponding buckling stresses of TCPSWs, such as the width ratio of subpanels, corrugation ratio, width-to-height ratio, inclined angle and corrugation number, were explored. Subsequently, based on extensive FEA results, fitting equations were proposed to calculate the elastic shear critical buckling stress of the three buckling modes, and compared with the solutions in previous literatures. Meanwhile, a buckling stress ratio method for determining the dominate buckling mode was provided. The study indicated that, the proposed buckling stress formulas achieved high accuracy and good applicability compared with the previous literatures, providing important reference for the subsequent lateral resistance investigation of TCPSWs.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"215 ","pages":"Article 113452"},"PeriodicalIF":5.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106483","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

Cross-sectional behaviour and design of hot-rolled carbon steel circular hollow section beams under moment gradients 弯矩梯度作用下热轧碳钢圆空心截面梁的截面性能与设计

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-14 DOI: 10.1016/j.tws.2025.113454

Yufei Zhu , Zichang Yang , Song Su , Yu Chen , Minze Zhang , Guo-Qiang Li

{"title":"Cross-sectional behaviour and design of hot-rolled carbon steel circular hollow section beams under moment gradients","authors":"Yufei Zhu , Zichang Yang , Song Su , Yu Chen , Minze Zhang , Guo-Qiang Li","doi":"10.1016/j.tws.2025.113454","DOIUrl":"10.1016/j.tws.2025.113454","url":null,"abstract":"<div><div>This paper presents a systematic experimental and numerical study into the cross-sectional behaviour and design of hot-rolled carbon steel circular hollow sections (CHS) under the effect of moment gradients. Two four-point bending and six stiffened three-point bending tests on two different Q355 CHS profiles were first conducted. The ongoing strain development during the tests was measured using a digital image correlation (DIC) system. Finite element (FE) models were developed to replicate the structural performance of CHS beams and the validated FE models were utilised in further parametric study to generate extensive numerical data covering a wide range of cross-section geometries, steel grades, and moment distributions. It was found that the bending moment capacity of CHS is enhanced by the presence of moment gradients and the magnitude of the enhancement depends on the local slenderness of the sections and the post-yield hardening characteristics of the materials. Based on a recently developed design proposal that incorporates a new parameter to capture the effect of moment gradients on the local buckling capacity and is compatible with the European cross-section design framework, this study extended the proposal to CHS beams and evaluated its efficiency using the obtained experimental and numerical results. A local buckling width factor, suitable for use in CHS, was proposed. The proposal was found to consistently provide more accurate resistance predictions than the current EC3 design rules for CHS under three-point bending. The reliability of the proposal was confirmed through statistical analyses according to EN 1990:2023.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"215 ","pages":"Article 113454"},"PeriodicalIF":5.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106551","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 Model for Mechanically Lined Pipe Hydroforming 机械衬管液压成形的解析模型

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-14 DOI: 10.1016/j.tws.2025.113446

Rongzhi Wei , Murilo Augusto Vaz , Xuefeng Hu

{"title":"Analytical Model for Mechanically Lined Pipe Hydroforming","authors":"Rongzhi Wei , Murilo Augusto Vaz , Xuefeng Hu","doi":"10.1016/j.tws.2025.113446","DOIUrl":"10.1016/j.tws.2025.113446","url":null,"abstract":"<div><div>Mechanically Lined Pipe (MLP) contributes to a cost-effective solution to long-distance transportation of oil and gas carrying corrosive substances. Causticity isolation is attained by lining a thin layer of Corrosion Resistant Alloy (CRA) upon the inner wall of carrier pipe. The interlayer mechanical bonding is crucial and typically achieved by expanding liner and carrier pipe simultaneously. Insufficient residual contact pressure makes thin-walled liner vulnerable to detachment when subjected to excessive compression or curvature. After experiencing repeated plastic bending, such as reel-lay installation, detachment can evolve into liner buckling and collapse inside the carrier pipe, and ultimately damaging the structure. Thus, the MLP hydroforming is mathematically modeled. By decomposing the expansion stages of each component, a comprehensive analytical framework is developed for full-process analysis of MLP manufacturing, encompassing single cylinder pure elastic, partially plastic, post-yield expansions (w/o and w/ external contact). The analytical framework employs von Mises yield criterion, Hencky deformation theory, and the auxiliary variable method to conduct stress-strain analysis. Its capacity to incorporate initial gap dimension, strain-hardening and partial plastification in mechanical bonding prediction is validated through Finite Difference Method (FDM). The proposed model provides an explicit equation system that is easily implementable for onsite MLP hydroforming fabrication.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"215 ","pages":"Article 113446"},"PeriodicalIF":5.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083668","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

Study on modal characteristics of inflated straight beam 膨胀直梁模态特性研究

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-14 DOI: 10.1016/j.tws.2025.113456

Chunlei Jiang , Dongjian Su , Shenshen Cheng , Jinwei Wang , Hao Wang , Shaona Liu , Ruyi Tao

{"title":"Study on modal characteristics of inflated straight beam","authors":"Chunlei Jiang , Dongjian Su , Shenshen Cheng , Jinwei Wang , Hao Wang , Shaona Liu , Ruyi Tao","doi":"10.1016/j.tws.2025.113456","DOIUrl":"10.1016/j.tws.2025.113456","url":null,"abstract":"<div><div>The inflated straight beam structure has been extensively used, but it is vulnerable to being vibrated by external disturbance. It is very necessary to carry out a simple and accurate modal analysis. Based on the principle of the virtual work and Timoshenko beam theory, a vibration model of an inflated straight beam is established considering the added mass of the inflated gas and tip effect in this paper. The first-order natural frequency deviation of the inflated straight beam is optimized from an average of 9.73 % to an average of 1.64 % by the finite element method. The second-order natural frequency deviation is optimized from an average of 14.09 % to an average of 2.91 %. Then the accuracy of the model is verified. The existing model is used to analyze the factors affecting the modal characteristics of the inflated straight beam. The results show that the structure of the inflated straight beam, the inflation pressure, and the inflation gas density are the key factors that can affect the mode of the inflated straight beam, and the mode of the beam is unaffected by the membrane thickness when the membrane thickness reaches 70 μm or more. The simulation results can be used for reference in the study of the vibration characteristics of the inflated straight beam.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"215 ","pages":"Article 113456"},"PeriodicalIF":5.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083665","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

Broadband sound penetration enhancement on water-air interface by metalens 超构透镜对水-空气界面的宽带扩声增强

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-14 DOI: 10.1016/j.tws.2025.113450

Chengxiang Du , Yang Yang , Pengyu Du , Qiao Hu , Zhandong Huang , Fuyin Ma

{"title":"Broadband sound penetration enhancement on water-air interface by metalens","authors":"Chengxiang Du , Yang Yang , Pengyu Du , Qiao Hu , Zhandong Huang , Fuyin Ma","doi":"10.1016/j.tws.2025.113450","DOIUrl":"10.1016/j.tws.2025.113450","url":null,"abstract":"<div><div>The extreme impedance mismatch results in very low sound energy penetration at the water-air interface, which limits many applications based on water-air transmission. We propose a design method for a stacked cross-media hybrid metalens based on the principle of gradient impedance matching, which can achieve broadband acoustic penetration enhancement at the water-air interface and excellent broadband acoustic beam focusing. The proposed stacked cross-media hybrid metalens is composed of an acoustic penetration enhanced metalens and an acoustic beam focusing metalens stacked in series in the thickness direction. The two metalenses are composed of different air-based metamaterial and water-based metamaterial, respectively. By carefully designing the geometric parameters of the metalens, broadband impedance matching between water and air can be achieved, greatly improving the energy transmission efficiency of the water-air interface. At the same time, it has excellent broadband acoustic beam focusing capability. Experiments have shown that compared with the bare water-air interface, within a 700 Hz working bandwidth, the stacked cross-media hybrid metalens achieves an average sound energy penetration enhancement of over 30 dB and a sound beam length of over 0.4 m. The excellent performance shows that the stacked cross-media hybrid metalens we proposed has a wide range of application scenarios in water-air interface acoustic communication.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"215 ","pages":"Article 113450"},"PeriodicalIF":5.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106553","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

Intelligent design framework for Kiewitt-Lamella single-layer reticulated shells based on member grouping-enhanced GAT 基于构件分组增强GAT的Kiewitt-Lamella单层网壳智能设计框架

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-14 DOI: 10.1016/j.tws.2025.113453

Zhang Yan-xia , Shen Xin-yu , Zhang Ai-lin , Shi Wen-sheng , Wang Jia-yao

{"title":"Intelligent design framework for Kiewitt-Lamella single-layer reticulated shells based on member grouping-enhanced GAT","authors":"Zhang Yan-xia , Shen Xin-yu , Zhang Ai-lin , Shi Wen-sheng , Wang Jia-yao","doi":"10.1016/j.tws.2025.113453","DOIUrl":"10.1016/j.tws.2025.113453","url":null,"abstract":"<div><div>This paper introduces a Member Grouping-Enhanced Graph Attention Network (MGE-GAT) framework for the intelligent design of Kiewitt-Lamella single-layer reticulated shells. The framework initiates with the design of cross-sections of members to ensure compliance with regulatory standards. Subsequently, a surrogate model is developed based on the Graph Attention Network, where predictive accuracy is enhanced through the integration of member grouping features and a multi-head attention mechanism. Finally, a multi-objective optimization algorithm is employed to automatically refine the grid configuration and member cross-sections, supported by the development of intelligent design software. Experimental results demonstrate that MGE-GAT excels in computational efficiency, material utilization, and stress distribution optimization, as validated by various objective functions and grouping methods. In conclusion, the proposed MGE-GAT framework significantly enhances design efficiency and structural performance, while offering promising potential for application in the design of more complex large-span steel structures to meet diverse engineering requirements.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"215 ","pages":"Article 113453"},"PeriodicalIF":5.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117080","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

Behaviour and design of bolted aluminium flange cleats 螺栓铝法兰夹板的性能和设计

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-13 DOI: 10.1016/j.tws.2025.113447

M. Cabrera , M. Theofanous , M. Bock

{"title":"Behaviour and design of bolted aluminium flange cleats","authors":"M. Cabrera , M. Theofanous , M. Bock","doi":"10.1016/j.tws.2025.113447","DOIUrl":"10.1016/j.tws.2025.113447","url":null,"abstract":"<div><div>Equivalent T-stubs are traditionally employed to model the structural behaviour of the tension zone of moment resisting connections. The design model for the equivalent T-stub considers only the bending moments acting on the equivalent T-stub without considering the co-existing tensile force acting on the T-stub web. However, for flange cleats in bending, the horizontal cleat leg (i.e. the T-stub web) at the junction with the vertical leg is subjected to a co-existing tensile force in addition to the bending moment which limits its moment resistance. This is not considered in current design specifications which made them potentially unsafe. This paper reports 5 experimental tests on bolted aluminium angle cleats in grade 6082 T6 that were used to develop and validate a finite element model. Subsequently, parametric studies were conducted over a wider range of flange cleat geometries covering all types of failure modes considered in EN 1999-1-1. The design specifications for equivalent T-stubs in tension set out in EN 1999-1-1 were assessed and cases where the specifications are inaccurate or potentially unsafe were highlighted. A simple modification of the existing design model is proposed, which offers more consistent and safe ultimate capacity predictions.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"215 ","pages":"Article 113447"},"PeriodicalIF":5.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083669","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

Hygro-thermo-electro-mechanical coupled modeling of laminated curved panels 复合弯曲板的湿热机电耦合建模

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-13 DOI: 10.1016/j.tws.2025.113423

Francesco Tornabene , Matteo Viscoti , Rossana Dimitri , Timon Rabczuk

{"title":"Hygro-thermo-electro-mechanical coupled modeling of laminated curved panels","authors":"Francesco Tornabene , Matteo Viscoti , Rossana Dimitri , Timon Rabczuk","doi":"10.1016/j.tws.2025.113423","DOIUrl":"10.1016/j.tws.2025.113423","url":null,"abstract":"<div><div>The manuscript presents a generalized two-dimensional model for evaluating the stationary hygro-thermo-mechanical response of laminated shell structures made of heterogeneous piezoelectric composite materials with thermal and hygrometric properties. In particular, the static bending response of these structures is studied, along with their coupled hygro-thermo-electrical behavior. A generalized kinematic model is introduced, enabling the assessment of arbitrary temperature and mass concentration variations with respect to the unvaried configuration at the top and bottom surfaces. This is achieved through an Equivalent Layer-Wise description of the unknown field variables using higher order polynomials and zigzag functions. Furthermore, an elastic foundation is modelled according to the Winkler-Pasternak theory. The fundamental equations, derived from the total free energy of the system, are solved analytically using Navier’s method. Then, the Fourier-based generalized differential quadrature numerical method is adopted to efficiently recover the through-the-thickness distribution of secondary variables, in agreement with the hygro-thermal loading conditions. The formulation is applied in some examples of investigation where the response of panels with different curvatures and lamination schemes is evaluated under external hygro-thermal fluxes and prescribed values of temperature and moisture concentration. In addition, we investigate the effect of the hygro-thermal coupling due to Dufour and Soret effect. The present formulation is verified to be a valuable tool for assessing the mechanical response of laminated structures in a thermal and hygrometric environment with reduced computational effort.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"215 ","pages":"Article 113423"},"PeriodicalIF":5.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190249","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 of functionally graded TPMS porous quadrilateral plates reinforced with graphene nanoplatelets 石墨烯纳米片增强功能梯度TPMS多孔四边形板的自由振动

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-12 DOI: 10.1016/j.tws.2025.113440

Shurui Wang , Mitao Song , Jie Yang , Weidong Zhu , Sritawat Kitipornchai

{"title":"Free vibration of functionally graded TPMS porous quadrilateral plates reinforced with graphene nanoplatelets","authors":"Shurui Wang , Mitao Song , Jie Yang , Weidong Zhu , Sritawat Kitipornchai","doi":"10.1016/j.tws.2025.113440","DOIUrl":"10.1016/j.tws.2025.113440","url":null,"abstract":"<div><div>This study investigates the free vibration behavior of functionally graded quadrilateral plates with straight edges, incorporating triply periodic minimal surface (TPMS) internal pores. These TPMS-based plates exhibit a non-uniform porosity distribution along the thickness direction, leading to functionally graded material properties. Three TPMS architectures, namely Primitive (P), Gyroid (G), and I-graph wrapped package (IWP), are analyzed. The eigenvalue problem is formulated using the mesh-free Improved Moving Least Squares (IMLS) combined with the Ritz method (IMLS-Ritz), which is applied for the first time to the analysis of quadrilateral plates under Reddy’s higher-order shear deformation theory (HSDT). The proposed method is validated against existing literature, demonstrating high accuracy. The results indicate that P-type porous plates achieve higher natural frequencies and maintain stiffness more effectively than G-type, IWP-type, and conventional porous plates, particularly at higher porosity levels. Additionally, the influence of shear deformation becomes more pronounced with increasing side-to-thickness ratios, highlighting the necessity of HSDTs for accurately modeling TPMS porous structures. These findings provide valuable insights for optimizing the design of lightweight porous structures in engineering applications.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"215 ","pages":"Article 113440"},"PeriodicalIF":5.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071173","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

Tensile and cut resistant performance of high-performance fiber/wire composite yarns for stab resistance: Experimental study and simulation analysis 抗刺用高性能纤维/丝复合纱线的抗拉、抗割性能：实验研究与仿真分析

IF 5.7 1区工程技术

Thin-Walled Structures Pub Date : 2025-05-12 DOI: 10.1016/j.tws.2025.113435

Xuliang Yu , Ting Su , Xinhua Liang , Honglian Cong , Gaoming Jiang , Pibo Ma , Haijun He , Xinji Zhou , Yanfeng Niu

{"title":"Tensile and cut resistant performance of high-performance fiber/wire composite yarns for stab resistance: Experimental study and simulation analysis","authors":"Xuliang Yu , Ting Su , Xinhua Liang , Honglian Cong , Gaoming Jiang , Pibo Ma , Haijun He , Xinji Zhou , Yanfeng Niu","doi":"10.1016/j.tws.2025.113435","DOIUrl":"10.1016/j.tws.2025.113435","url":null,"abstract":"<div><div>Composite structured yarn materials are essential in the stab-resistant field. However, the microscopic and complex nature of the material presents a challenge in investigating the puncture performance and mechanism of diverse composite yarns (CY). This study investigates four types of CY materials, which are integrated with high-performance fibers and metal wires (H/MCY). The preparation process was adjusted to produce these materials with five distinct twist lengths (h<sub>1</sub>–h<sub>5</sub>), progressively increasing from small to large. Then, the research evaluates their tensile properties, cut resistance, and corresponding finite element simulation outcomes. The braided structure (B-H/MCY) significantly improves mechanical performance, with a 25.9 % increase in maximum tensile stress and a 44.2 % enhancement in cut resistance, compared to the UHMWPE with similar thickness. Nevertheless, at smaller twist lengths (h<sub>1</sub>), all H/MCY structures exhibit excessive structural distortion, which compromises stress transfer efficiency. Conversely, excessively large twist lengths (h<sub>5</sub>) increase yarn thickness and fluffiness, thereby degrading structural integrity and ultimately reducing the tensile and cutting performance of materials. Notably, the bearing stress of the B-H/MCY material is distributed into multiple segments, exhibiting superior stress propagation and energy dissipation. In contrast, the wrapped, double-wrapped, and core-wrapped structures generate single-segment stress. Moreover, the interlocking layered design of B-H/MCY materials provides multi-tiered protective capabilities. This approach provides some insights into studying the influence of the H/MCY structure on the mechanical properties of stab-resistant materials.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"214 ","pages":"Article 113435"},"PeriodicalIF":5.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949064","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