Procedia Structural Integrity最新文献_第4页

Enhanced Weibull Formulation for Capturing Fatigue Life Scatter in AM Alloys Supported by Fractographic Analysis 基于断口分析的增强Weibull公式捕捉AM合金疲劳寿命散射

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-04 DOI: 10.1016/j.prostr.2025.12.286

Luca Esposito , Matteo Bruno , Moreno Nacca

引用次数: 0

Effect of shot peening and heat treatments on the fatigue crack propagation on AlSi10Mg alloy specimens produced by L-PBF 喷丸强化和热处理对L-PBF法制备AlSi10Mg合金试样疲劳裂纹扩展的影响

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-04 DOI: 10.1016/j.prostr.2025.12.285

R. Fernandes , J.S. Jesus , L.P. Borrego , J.A.M. Ferreira , R. Branco , J.D.M. Costa

{"title":"Effect of shot peening and heat treatments on the fatigue crack propagation on AlSi10Mg alloy specimens produced by L-PBF","authors":"R. Fernandes , J.S. Jesus , L.P. Borrego , J.A.M. Ferreira , R. Branco , J.D.M. Costa","doi":"10.1016/j.prostr.2025.12.285","DOIUrl":"10.1016/j.prostr.2025.12.285","url":null,"abstract":"<div><div>Laser Powder Bed Fusion (L-PBF) enables the 3D printing of components in Aluminium alloys, widely used high-performance engineering applications, whereby it is fundamental the understanding of in-service fatigue behaviour. Current paper is focused on the fatigue crack propagation of AlSi10Mg aluminium alloy using CT specimens. The tested material conditions included as-built (AB), as-built shot-peened (AB+SP), stress-relieved (SR) and stress-relieved shot-peened (SR+SP), loaded in mode I. The purpose of the work was to understand the correlation between post-built treatments, residual stresses, porosity defect levels and fatigue crack growth (FCG), including transient regime after overload applications. The porosity levels were obtained by tomography technique. The residual stress relief and their subsequent stabilization were the main mechanisms responsible for improving the fatigue crack growth resistance. The as-built shot-peened condition showed minimal influence on FCG rates in the near-threshold regime but did increase the threshold value. At higher ΔK values, the FCG behaviour of as-built and as-built shot-peened specimens was similar, and for stress-relieved specimens, shot-peening treatment provided no notable benefit, as FCG rates for stress-relieved and stress-relieved shot-peened conditions were comparable.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"76 ","pages":"Pages 43-49"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Homogenised Material Approach to Predict Fatigue Life of Additively Manufactured PLA with Different In-fill Levels 用均质材料方法预测不同填充水平增材制造PLA的疲劳寿命

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-04 DOI: 10.1016/j.prostr.2025.12.292

Mehmet F. Yaren , Luca Susmel

引用次数: 0

Fibre-Reinforced Self-Healing Composites: Mechanical Characterisation using Acoustic Emission Technique 纤维增强自愈复合材料：利用声发射技术进行力学表征

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-04 DOI: 10.1016/j.prostr.2026.01.001

Claudia Barile , Vimalathithan Paramsamy Kannan

{"title":"Fibre-Reinforced Self-Healing Composites: Mechanical Characterisation using Acoustic Emission Technique","authors":"Claudia Barile , Vimalathithan Paramsamy Kannan","doi":"10.1016/j.prostr.2026.01.001","DOIUrl":"10.1016/j.prostr.2026.01.001","url":null,"abstract":"<div><div>The autonomous healing of polymeric matrices in the fibre-reinforced composites has received significant attention in recent years. This research investigates the ability of an intrinsically healable polymer resin to heal internal defects in a fibre-dense composite. Unstable internal defects are created in a self-healing Carbon Fibre-Reinforced Polymer composites (CFRPs) using a three-point bending setup. Mild heat is applied as an external stimulus to heal the damaged composites. Mechanical performance recovery is evaluated by testing the virgin, damaged, and healed composites under flexural loads. The test results reveal a marginal recovery of flexural properties after healing. The damage progression in the composites, as well as the rationale behind this marginal recovery of the flexural properties are evaluated using Acoustic Emission (AE) tests. Machine Learning (ML)-based unsupervised data clustering and Continuous Wavelet Transform (CWT) are employed to analyse the parameter-based and signal-based AE data, respectively. The results are further validated using microscopic analysis. These results suggest that the healing process has altered the damage progression path in the self-healing CFRPs and is responsible for the recovery of flexural properties.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"77 ","pages":"Pages 3-10"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energetic evaluation of tubular adhesive joints: adherend material effect 管状粘结接头的能量评价：粘结材料效应

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-04 DOI: 10.1016/j.prostr.2026.01.014

C.F.F. Gomes , R.D.S.G. Campilho , A.J.A. Vieira , D.C. Gonçalves , K. Madani

引用次数: 0

An experimental evaluation of a vehicle’s center of gravity (CoG) height in motion 汽车运动重心（CoG）高度的实验评估

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-02-04 DOI: 10.1016/j.prostr.2026.01.077

Francisco Castro , Francisco Queirós de Melo , David Faria , Job Silva , João Nunes , Bruno Sousa , Pedro Sousa , Mário Vaz , Pedro Moreira

{"title":"An experimental evaluation of a vehicle’s center of gravity (CoG) height in motion","authors":"Francisco Castro , Francisco Queirós de Melo , David Faria , Job Silva , João Nunes , Bruno Sousa , Pedro Sousa , Mário Vaz , Pedro Moreira","doi":"10.1016/j.prostr.2026.01.077","DOIUrl":"10.1016/j.prostr.2026.01.077","url":null,"abstract":"<div><div>A vehicle’s center of gravity (CoG) height often changes in SUVs, military vehicles and heavy vehicles such as trucks or buses, due to load conditions variations. Since this parameter influences the dynamic behavior of vehicles, being considered the most important parameter for the occurrence of un-tripped rollovers, the accurate knowledge of CoG height is fundamental for the design and implementation of effective rollover prevention strategies and for improving the performance of active safety systems. Contrary to the longitudinal and lateral CoG position estimation, there isn’t any equipment that measures the CoG height position of a vehicle directly. Thus, the estimation of this parameter still remains a challenge due to the high computational burden and associated costs, despite the developments in the last 15 years.</div><div>This study proposes two different approaches for estimating the vehicle’s CoG height in motion, by using a longitudinal dynamic model which relies on a braking maneuver and a roll dynamics approach that relies on a cornering maneuver. Both methods use vehicle characteristics which are easy to measure or can be provided by the manufacturers, and the other parameters can be obtained from sensors which can easily be installed on a vehicle.</div><div>In order to validate the proposed method, experimental tests were conducted using a prototype vehicle (rc-vehicle) for various driving scenarios considering different load conditions. The consequent results were compared with ones obtained through static methods, exhibiting good accuracy. Therefore, the method proposed to estimate the CoG height position can be implemented to assist the vehicle in monitoring real-time rollover risk and improving the accuracy of vehicle safety control system, or act as a warning system to the driver.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"77 ","pages":"Pages 611-630"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prediction of Material Damages Based on a High-Cycle Fatigue Model and Non-destructive Testing Data 基于高周疲劳模型和无损检测数据的材料损伤预测

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-04-08 DOI: 10.1016/j.prostr.2026.03.045

Bezhenov Sergiy

{"title":"Prediction of Material Damages Based on a High-Cycle Fatigue Model and Non-destructive Testing Data","authors":"Bezhenov Sergiy","doi":"10.1016/j.prostr.2026.03.045","DOIUrl":"10.1016/j.prostr.2026.03.045","url":null,"abstract":"<div><div>In this paper, the results of the investigation of the process of fatigue fracture of the carbon steels, low-alloy steels, Ni-based, as well as Ti-based alloy specimens are presented. Samples were studied in a state of normalization of the material structure, as well as after strengthening treatment by surface plastic deformation. During the fatigue tests, the count rate of acoustic emission (AE) signals was recorded simultaneously in three frequency bands.</div><div>The fatigue test results were processed in accordance with the hypothesis of a pole in the fatigue curves of materials of the same class with different technological heredity. For this purpose, the coordinates of the fatigue curve poles for the investigated materials were determined. It has been established that the ordinates of the poles of the fatigue curves correspond to the activation energy of destruction of the volume of one mole of the metal that forms the basis of the alloy. The abscissas of the poles for different classes of steel were determined by searching for optimal values of the main statistical parameters (the maximum correlation coefficient with minimum standard deviation). An explicit connection between the abscissa of the pole and the mechanical and physical properties of the alloys under study has not been established.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"81 ","pages":"Pages 260-263"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147652672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boundary element modeling of thermo-fatigue processes under cyclic quasi-static thermal loading 循环准静态热载荷下热疲劳过程的边界元建模

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-04-08 DOI: 10.1016/j.prostr.2026.03.042

Oleh Yasniy , Iaroslav Pasternak , Dmytro Tymoshchuk , Iryna Didych , Olha Malyshevska

{"title":"Boundary element modeling of thermo-fatigue processes under cyclic quasi-static thermal loading","authors":"Oleh Yasniy , Iaroslav Pasternak , Dmytro Tymoshchuk , Iryna Didych , Olha Malyshevska","doi":"10.1016/j.prostr.2026.03.042","DOIUrl":"10.1016/j.prostr.2026.03.042","url":null,"abstract":"<div><div>This work applies boundary element modeling to study thermo-fatigue crack initiation and growth under cyclic quasi-static thermal loading in plane thermoelastic problems. An accurate boundary element implementation with analytical integration on quadratic elements is used, with special treatment of singular stress fields near cracks. The model considers a plate subjected to cyclic thermal loading with randomly distributed initial micro-cracks representing stochastic defect initiation. Crack nucleation is modeled probabilistically at grid nodes when local stress exceeds a critical threshold that decreases over time due to material degradation. Fatigue crack growth in existing cracks is governed by the Paris law, with propagation direction determined by the maximum hoop stress criterion. The framework combines probabilistic nucleation and deterministic crack growth into a unified multiscale scheme for thermo-fatigue simulation. Numerical experiments analyze the influence of degradation parameters, thermal loading modes, and Paris law parameters on crack evolution. Results show that crack networks are highly sensitive to both mechanical and probabilistic factors, with practical relevance for assessing thermo-fatigue in components such as mill rolls.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"81 ","pages":"Pages 244-250"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147652674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cast Structure Evolution in Pulsed Mode Electroslag Remelting 脉冲模式电渣重熔的铸件组织演变

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-04-08 DOI: 10.1016/j.prostr.2026.03.028

Igor Protokovilov, Vitalii Porokhonko, Victor Shapovalov, Farit Biktagirov

{"title":"Cast Structure Evolution in Pulsed Mode Electroslag Remelting","authors":"Igor Protokovilov, Vitalii Porokhonko, Victor Shapovalov, Farit Biktagirov","doi":"10.1016/j.prostr.2026.03.028","DOIUrl":"10.1016/j.prostr.2026.03.028","url":null,"abstract":"<div><div>The results of a study on the characteristics of cast metal structure evolution in pulsed mode electroslag remelting (ESR) with layer-by-layer ingot formation are presented. Experiments were carried out on ingots of 85–220 mm diameter from carbon steels (S235JR, C22E) and a Fe–Ni–Co alloy (54Fe–29Ni–17Co). Remelting was performed in a chamber-type electroslag furnace in an argon atmosphere. Experiments were conducted under various conditions of the layer-by-layer ingot formation process. The resulting ingots were cut along their axis to study solidification patterns. It has been established that conducting ESR in a pulsed mode makes it possible to control the metal structure and produce ingots with a structure significantly finer than that obtained by conventional ESR. It is shown that during layer-by-layer formation, columnar crystals are localized within individual layers of metal and do not cross the boundaries between the deposited layers. A nearly linear relationship between the size of cast grains and the height of the deposited layer has been determined. The optimal structural refinement is achieved when the height of a single layer is maintained within the range of (0.1–0.5) × ingot diameter. For defect-free interlayer bonding the duration of melting pauses must be such that no more than 75–95% of the volume of the molten pool solidifies before the next portion is remelted. The study proposes principles for controlling cast structure in pulsed mode ESR, providing guidelines for producing ingots up to 220 mm in diameter with enhanced homogeneity.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"81 ","pages":"Pages 156-161"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147652681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling the behavior of a steel-timber trapezoidal truss with local damage to individual elements 考虑单个构件局部损伤的钢-木梯形桁架的性能建模

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-04-08 DOI: 10.1016/j.prostr.2026.03.033

Svyatoslav Gomon , Valentin Aleksiievets , Petro Gomon , Sviatoslav Homon , Nazarii Riabcheniuk , Diana Kaynts , Oksana Mykaylo , Yolana Golyk

引用次数: 0