Engineering Failure Analysis最新文献_第6页

Microstructure evolution and fracture mechanisms in Ti-6Al-4V alloy under multidirectional isothermal forged Ti-6Al-4V合金多向等温锻造组织演变及断裂机制

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-11 DOI: 10.1016/j.engfailanal.2025.109707

He Wang , Yingxiang Yang , Zhongxue Feng , Min Chen , Bin Yang , Xuefeng Zhang , Xiaoqi Wang , Huarong Qi , Qingnan Shi , Jianhong Yi

{"title":"Microstructure evolution and fracture mechanisms in Ti-6Al-4V alloy under multidirectional isothermal forged","authors":"He Wang , Yingxiang Yang , Zhongxue Feng , Min Chen , Bin Yang , Xuefeng Zhang , Xiaoqi Wang , Huarong Qi , Qingnan Shi , Jianhong Yi","doi":"10.1016/j.engfailanal.2025.109707","DOIUrl":"10.1016/j.engfailanal.2025.109707","url":null,"abstract":"<div><div>This study investigated the effects of multidirectional isothermal forging (MDIF) on the microstructure, mechanical properties, and fracture behavior of Ti-6Al-4V alloy. The MDIF process significantly refined the grain size, leading to substantial increases in yield strength and tensile strength, reaching 1245 MPa and 1267 MPa, respectively, which represent 29 % and 22 % increases compared to the as-cast alloy. The fracture behavior exhibited characteristics of ductile fracture, with dislocations accumulating at grain boundaries causing stress concentration, which promotes the formation and propagation of cracks along the grain boundaries, ultimately connecting through necking. Finite element simulation further elucidated the stress distribution on the fracture surface, showing that stress was mainly concentrated near the fracture surface. This work provides key insights for optimizing the processing of Ti-6Al-4V to achieve high-performance applications and offers valuable guidance for enhancing strength and toughness through grain refinement.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"178 ","pages":"Article 109707"},"PeriodicalIF":4.4,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Dynamic modelling and failure analysis for a compressor blade in aero-engine undergoing blade-casing rubbing events 某型航空发动机压气机叶片叶片与机匣摩擦事件的动力学建模与失效分析

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-10 DOI: 10.1016/j.engfailanal.2025.109700

Pingchao Yu , Xuanjun Tao , Jiae Zhang , Zhenyang Xiang , Yize Jin , Jiayu Chen

{"title":"Dynamic modelling and failure analysis for a compressor blade in aero-engine undergoing blade-casing rubbing events","authors":"Pingchao Yu , Xuanjun Tao , Jiae Zhang , Zhenyang Xiang , Yize Jin , Jiayu Chen","doi":"10.1016/j.engfailanal.2025.109700","DOIUrl":"10.1016/j.engfailanal.2025.109700","url":null,"abstract":"<div><div>Blade-casing rubbing is a common phenomenon in modern aero-engine, and often leads to secondary failure of the blade. The complex geometric configuration of actual blades, the strong nonlinearity of contact-friction, and the spatial characteristics of the contact state intensify the difficulty of simulating such rubbing dynamical problems. In this paper, a rubbing dynamical model and nonlinear solving method, which can take into account the blade’s intricate spatial geometric configurations and complex contact state of different blade tip positions, are proposed based on the solid finite element method, the reduction technique and the discrete three-dimensional rubbing force derivation. Using the proposed rubbing model and solving method, the nonlinear rubbing behavior and failure mechanism of an actual compressor blade are revealed. The simulation results show that the contact of blade leading edge with casing can induce the intermittent rubbing condition, under which the blade will form a kind of self-excited vibration characterized by high-frequency and high-amplitude alternating stress, thereby resulting in the fatigue fracture of the blade. By reducing the structural stiffness, increasing the blade damping, or actively controlling rubbing position, the intermittent rubbing can be suppressed and the possibility for blade fatigue fracture failure can be mitigated.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"177 ","pages":"Article 109700"},"PeriodicalIF":4.4,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Failure mode and design method for concrete-filled rigid flange (CFRF) joints under bending load 弯曲荷载作用下混凝土刚性法兰节点破坏模式及设计方法

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-09 DOI: 10.1016/j.engfailanal.2025.109694

Wanzhi Zhou, Tong Wu, Dachang Zhang, Fenghua Huang

{"title":"Failure mode and design method for concrete-filled rigid flange (CFRF) joints under bending load","authors":"Wanzhi Zhou, Tong Wu, Dachang Zhang, Fenghua Huang","doi":"10.1016/j.engfailanal.2025.109694","DOIUrl":"10.1016/j.engfailanal.2025.109694","url":null,"abstract":"<div><div>To study the bending behaviour of concrete-filled rigid flange (CFRF) joint under a bending load, two CFRF specimens with the same stiffness were designed, and four-point bending tests and numerical simulation analyses were conducted. In the tests and simulations, the failure mode, load–displacement curve, opening deformation and strain development were obtained and analysed. Furthermore, 24 numerical simulation analyses were conducted to reveal the effects of the concrete-filling rate <em>β</em>, flange thickness <em>T</em><sub>p</sub>, stiffener height <em>H</em><sub>s</sub>, and bolt number <em>N</em> on the ultimate bending bearing capacity and position of the rotation axis. The results indicate that the failure mode of the CFRF joint involves damage to the maximum-stress bolt, concrete cracking, and V-shaped opening on the flange plate, indicating the development of a bolt prying force. However, the bolt prying force gradually weakens from the tensile to the compressive side. In addition, the ultimate bending bearing capacity and rotation axis position of the CFRF joint are positively correlated with <em>β</em>, <em>T</em><sub>p</sub>, <em>H</em><sub>s</sub>, and <em>N</em>. Finally, based on the deformation characteristics of a single grid, a theory for calculating the circumferential stiffness of the CFRF joint presented, and five typical failure modes and the design methodology are proposed.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"177 ","pages":"Article 109694"},"PeriodicalIF":4.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Microstructural evolution and corrosion-assisted failure mechanism of 7075-T6 aluminum alloy under elastic-plastic stress: An integrated numerical and experimental investigation 弹塑性应力作用下7075-T6铝合金微观组织演化与腐蚀辅助破坏机制研究

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-09 DOI: 10.1016/j.engfailanal.2025.109672

Zihao Guo , Yue Hou , Congrui Zhu , Shushuai Liu , Yanan Pu , Shougang Chen

{"title":"Microstructural evolution and corrosion-assisted failure mechanism of 7075-T6 aluminum alloy under elastic-plastic stress: An integrated numerical and experimental investigation","authors":"Zihao Guo , Yue Hou , Congrui Zhu , Shushuai Liu , Yanan Pu , Shougang Chen","doi":"10.1016/j.engfailanal.2025.109672","DOIUrl":"10.1016/j.engfailanal.2025.109672","url":null,"abstract":"<div><div>This research employed a custom-designed three-point bending (TPB) stress fixture to examine the stress corrosion cracking (SCC) behaviour of 7075-T6 aluminum (Al) alloy in a 3.5 wt% NaCl solution under both elastic and plastic strain. The mechanism of stress corrosion fracture failure was explored through microstructural observation, chemical composition analysis, electrochemical measurements, and finite element analysis (FEA). Under tensile stress, cracks initiated from the coupon surface centre and cross-section edges, aligning with the stress distribution calculated by FEA. The increase in defects of the passive film on the alloy coupon surface led to a decrease in its protective effect. Tensile stress caused a drop in the alloy’s potential, an increase in corrosion current density, and accelerated corrosion under higher stress levels. Corrosion pits on the alloy surface were more likely to grow, coalesce, and initiate cracks in the direction perpendicular to the stress. Additionally, corrosion pits and stress concentration phenomena were mostly observed around intermetallic particles (IMPs), with selective anodic dissolution of the Al matrix or anodic IMPs. The SCC of 7075-T6 Al alloy exhibited a mixed-mode fracture, with fracture surfaces displaying distinct dissociation steps and numerous dimples containing IMPs.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"178 ","pages":"Article 109672"},"PeriodicalIF":4.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effect of finishing on surface integrity and contact fatigue damage of carburized 16Cr3NiWMoVNbE gears 精加工对渗碳16Cr3NiWMoVNbE齿轮表面完整性及接触疲劳损伤的影响

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-09 DOI: 10.1016/j.engfailanal.2025.109702

Jin-Xin Yao , Yuan-Yuan Fang , Cong-Qian Cheng , Wei Liu , Xian-Ming Meng , Tie-Shan Cao , Jie Zhao

{"title":"Effect of finishing on surface integrity and contact fatigue damage of carburized 16Cr3NiWMoVNbE gears","authors":"Jin-Xin Yao , Yuan-Yuan Fang , Cong-Qian Cheng , Wei Liu , Xian-Ming Meng , Tie-Shan Cao , Jie Zhao","doi":"10.1016/j.engfailanal.2025.109702","DOIUrl":"10.1016/j.engfailanal.2025.109702","url":null,"abstract":"<div><div>Finishing technology has become an important process in the manufacture of high-performance gears due to its positive effect on surface roughness and residual stresses. However, the important effect of finishing technology on the micro-profile of gears is often overlooked. To systematically investigate the imporve mechanisms of finishing processes on case-hardened gears, this research examines the influences of vibration honing (VH) and stream barrel (SB) finishing processings on the surface integrity characteristics and contact fatigue damage evolution of carburized 16Cr3NiWMoVNbE gears. The results indicate that the surface roughness slight decrease after the SB and VH finishing. The compressive residual stress of three sets gears is more than −850 MPa. Furthermore, micro-profile of the tooth tip is modified by increasing the transition arc between the tooth flank and the chamfer face. The application of surface finishing effectively mitigates contact fatigue damage. This is primarily achieved through modification of the tooth tip micro-profile to mitigate contact interference between the tip and root regions.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"177 ","pages":"Article 109702"},"PeriodicalIF":4.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effect of metal layer material properties on the metal laminate wrinkle resistance 金属层材料性能对金属层压板抗皱性能的影响

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-08 DOI: 10.1016/j.engfailanal.2025.109662

Bing Du , Xingze Zhen , Fenghua Liu , Chaoyang Huang , Ziwei Feng , Hailong Cui , Mingxin Dong

{"title":"Effect of metal layer material properties on the metal laminate wrinkle resistance","authors":"Bing Du , Xingze Zhen , Fenghua Liu , Chaoyang Huang , Ziwei Feng , Hailong Cui , Mingxin Dong","doi":"10.1016/j.engfailanal.2025.109662","DOIUrl":"10.1016/j.engfailanal.2025.109662","url":null,"abstract":"<div><div>Metal laminates are prone to wrinkling in the plastic forming, and the mechanical response differences between different metal layers lead to the complexity of the wrinkling mechanism. However, understanding how these differences affect wrinkle resistance can improve the laminate anti-wrinkle properties. Therefore, this study established evaluation indicators for wrinkle resistance based on macroscopic morphological characteristics using the Yoshida Buckling test and the finite element method. Furthermore, the influence of material parameters of different metal layers (including elastic modulus <em>E</em>, Poisson ratio <em>μ</em>, strength coefficient <em>K</em>, and hardening index <em>n</em>) on the laminate wrinkle resistance was analyzed. The study indicates that increasing the parameters <em>E</em>, <em>μ,</em> and <em>K</em> or decreasing <em>n</em> can enhance the overall wrinkle resistance on metal laminates. In addition, orthogonal test methods further reveal the sensitivity of each parameter to wrinkle resistance. The results demonstrate that the material properties of the base layer exhibit higher sensitivity to wrinkling resistance than those of the cladding layer. The sensitivity hierarchy follows <em>n</em> > <em>K</em> > <em>E</em> > <em>μ</em>. At the same time, the optimal parameter combination for wrinkle resistance is obtained. The research result provides a theoretical basis and guidance for the optimal design and manufacture of metal laminates.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"177 ","pages":"Article 109662"},"PeriodicalIF":4.4,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Innovative non-destructive thermographic evaluation of mechanical properties in dissimilar aluminium probeless friction stir spot welded (P-FSSW) joints 异种铝无探针搅拌摩擦点焊（P-FSSW）接头力学性能的创新无损热成像评价

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-08 DOI: 10.1016/j.engfailanal.2025.109675

G. Dell’Avvocato , M. Rashkovets , E. Mancini , N. Contuzzi , G. Casalino , D. Palumbo , U. Galietti

{"title":"Innovative non-destructive thermographic evaluation of mechanical properties in dissimilar aluminium probeless friction stir spot welded (P-FSSW) joints","authors":"G. Dell’Avvocato , M. Rashkovets , E. Mancini , N. Contuzzi , G. Casalino , D. Palumbo , U. Galietti","doi":"10.1016/j.engfailanal.2025.109675","DOIUrl":"10.1016/j.engfailanal.2025.109675","url":null,"abstract":"<div><div>This study introduces a novel non-destructive methodology based on step-heating laser thermography technique to evaluate the mechanical strength of dissimilar aluminium joints produced through probeless friction stir spot welding (P-FSSW). The proposed approach enables the quantitative analysis of the thermo-mechanically stirred region, distinguishing two different morphologies (ductile and mixed) correlated with the joint’s ultimate mechanical strength. Eleven welded joints were analysed by using two of them used for calibration through thermographic tests, Chisel and scanning electron microscopy (SEM) analyses. At the same time, nine underwent tensile-shear tests were carried out to correlate thermographic parameters (A<sub>1</sub>, A<sub>2</sub>) with maximum force (F<sub>max</sub>).</div><div>Statistical analysis revealed that the ductile area (A<sub>2</sub>) is the most significant parameter, exhibiting a robust correlation with Fmax (r = 0.81). A simplified regression model based on A<sub>2</sub> demonstrated high reliability (adjusted R<sup>2</sup> = 0.60). This methodology provides a significant advancement in non-destructive quality control for P-FSSW joints, paving the way for its integration into industrial applications. The developed procedure offers a reliable, contactless, and scalable solution for real-time industrial inspection of P-FSSW joints, representing a significant alternative to conventional destructive testing methods.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"177 ","pages":"Article 109675"},"PeriodicalIF":4.4,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 investigations on process-performance for steel-aluminum Riv-Bonding joints 钢-铝铆接接头工艺性能的试验与数值研究

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-07 DOI: 10.1016/j.engfailanal.2025.109666

Zhanpeng Du , Libin Duan , Baolin Ma , Lifang Ren , Xiangxin Meng , Liguo Xu , Shili Rui

{"title":"Experimental and numerical investigations on process-performance for steel-aluminum Riv-Bonding joints","authors":"Zhanpeng Du , Libin Duan , Baolin Ma , Lifang Ren , Xiangxin Meng , Liguo Xu , Shili Rui","doi":"10.1016/j.engfailanal.2025.109666","DOIUrl":"10.1016/j.engfailanal.2025.109666","url":null,"abstract":"<div><div>The Riv(et)-Bonding technique is widely applied in the steel-aluminum hybrid body, and the connection quality of the Riv-Bonding joints has attracted increasing interest. This study aims to investigate the effects of adhesive layer on the forming process quality and mechanical performance of Riv-Bonding joints, and reveals the failure mechanisms of self-piercing riveting (SPR) joints and Riv-Bonding joints from macroscopic and microscopic perspectives. Firstly, the process-performance of the Riv-Bonding joints and SPR joints is experimentally compared. Then, a process-performance whole flow simulation method is proposed to simulate the forming process and mechanical performance of Riv-Bonding joints. The accuracy of the established numerical model is subsequently validated through tests with the absolute errors in forming quality indicators and mechanical performances maintained within 8% and 10%, respectively. Finally, a parametric study is conducted to explore the effects of adhesive defects on the connection quality of Riv–Bonding joints. The results indicate that the location of defects has a significant impact on the quality of the joint forming process, whereas the area ratio of the defects exhibits minimal influence on this quality. In addition, the location of the defects also has a significant effect on mechanical performance. Aside from shear joints, variations in the adhesive defects proportion do not affect the peak force of peeling and cross-tension specimens.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"177 ","pages":"Article 109666"},"PeriodicalIF":4.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Interface failure in TRM–concrete systems with cementitious fan-type anchors under direct tension 直接张拉作用下胶凝扇形锚杆trm -混凝土体系界面破坏

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-06 DOI: 10.1016/j.engfailanal.2025.109679

Özlem Çalışkan , Murat Yüncüler , Ömer Mercimek , Özgür Anıl

{"title":"Interface failure in TRM–concrete systems with cementitious fan-type anchors under direct tension","authors":"Özlem Çalışkan , Murat Yüncüler , Ömer Mercimek , Özgür Anıl","doi":"10.1016/j.engfailanal.2025.109679","DOIUrl":"10.1016/j.engfailanal.2025.109679","url":null,"abstract":"<div><div>This study investigates the bond-slip behavior of Textile Reinforced Mortar (TRM) strips applied to concrete substrates under axial loading, with particular emphasis on the effects of geometric, material, and anchorage parameters. A total of 48 full-scale specimens were tested under direct tension using a custom-designed experimental setup, instrumented with high-precision LVDTs and supplemented by Digital Image Correlation (DIC) to capture detailed strain distributions. Key variables included concrete strength (C15 and C30), TRM strip width (50 mm and 100 mm), bonding length (150 mm, 300 mm, 450 mm), number of anchors (1 to 6), and anchor configurations (1-row and 2-row systems). The use of fan-type CFRP anchors embedded with cementitious mortar significantly enhanced the bond performance, increasing both maximum load and energy dissipation capacity. Experimental findings revealed that increasing strip width and bonding length improved stiffness and load capacity, up to an effective bond length threshold. DIC analysis enabled high-resolution strain mapping across the TRM-concrete interface, highlighting the localization of maximum strain near anchorage regions and confirming the mechanical influence of both anchorage density and vertical distribution. On average, anchored specimens exhibited 63 % higher peak load and over 100 % greater energy absorption than their unanchored counterparts. The results demonstrate that anchor usage, configuration, and TRM geometry are critical design parameters governing the efficiency, ductility, and reliability of TRM-concrete systems. This research contributes to a better understanding of TRM interface mechanics and provides valuable insights for the design and optimization of strengthening strategies in reinforced concrete structures.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"177 ","pages":"Article 109679"},"PeriodicalIF":4.4,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effects of sheet material and thickness on the quasi-static and fatigue failure behavior of self-piercing riveted steel-aluminum joints with edge riveting 板料和厚度对边铆自穿孔钢-铝铆接接头准静态和疲劳破坏行为的影响

IF 4.4 2区工程技术

Engineering Failure Analysis Pub Date : 2025-05-06 DOI: 10.1016/j.engfailanal.2025.109686

Chao Wang , Aiguo Cheng , Zhaohui Hu , Zhanpeng Du , Zhicheng He , Wanyuan Yu

{"title":"Effects of sheet material and thickness on the quasi-static and fatigue failure behavior of self-piercing riveted steel-aluminum joints with edge riveting","authors":"Chao Wang , Aiguo Cheng , Zhaohui Hu , Zhanpeng Du , Zhicheng He , Wanyuan Yu","doi":"10.1016/j.engfailanal.2025.109686","DOIUrl":"10.1016/j.engfailanal.2025.109686","url":null,"abstract":"<div><div>The impacts of sheet material, sheet thickness, and edge distance on the mechanical properties and failure mechanism of steel-aluminum (steel as the top sheet) SPR joints under quasi-static loading are analyzed. The effect of edge distance on the fatigue life and failure mechanism of SPR joints is also discussed, and the fatigue life under different reliability levels is calculated using Weibull distribution. Results indicate that both bottom thickness and undercut values increase with higher material strength and sheet thickness, with minimal influence from edge distance. Insufficient clamping at the edge position results in decreased bottom thickness. All joints show an initial increase and then a decrease in peak loads with the increase in edge distance. Edge distances of 5.0 mm and 35.0 mm lead to reduced peak loads, whereas differences between edge distances of 15.0 mm and 25.0 mm are minimal. Compared to joints with edge distances of 15.0 mm or 25.0 mm, the peak loads of A5, B5, and C5 joints decrease by 19.3 %, 27.2 %, and 24.1 %, respectively. Similarly, the peak loads of A35, B35, and C35 joints decrease by 2.4 %, 12.8 %, and 16.8 %, respectively. The B35 joint is more suitable for low fatigue load levels, while B5 and B15 joints are better for higher fatigue load levels. Under quasi-static loading, five macro failure modes are identified: top sheet fracture, top sheet tearing, interlock failure, rivet fracture, and bottom sheet fracture. Under fatigue loading, B5, B15, and B35 joints exhibit mixed fracture, steel sheet fracture, and aluminum sheet fracture, respectively.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"177 ","pages":"Article 109686"},"PeriodicalIF":4.4,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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