Procedia Structural Integrity最新文献_第4页

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

Estimation of eigenfrequencies of oscillations of a one-storey industrial building on the basis of numerical modelling 基于数值模拟的单层工业建筑振动特征频率估计

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-04-08 DOI: 10.1016/j.prostr.2026.03.072

Mykhailo Hud, Tetyana Pyndus, Vitaliy Senchyshyn

{"title":"Estimation of eigenfrequencies of oscillations of a one-storey industrial building on the basis of numerical modelling","authors":"Mykhailo Hud, Tetyana Pyndus, Vitaliy Senchyshyn","doi":"10.1016/j.prostr.2026.03.072","DOIUrl":"10.1016/j.prostr.2026.03.072","url":null,"abstract":"<div><div>This article presents the results of a numerical modal analysis carried out on the frame of a single-storey industrial building. The aim of еру ші study to assess how structural modifications influence the natural frequency spectrum and the behavior of vibration modes. Three finite element models were developed: a baseline scheme and two modified versions with changes introduced to the upper and lower sections of the truss. The baseline model included reinforced concrete columns (class C16/20) and steel trusses made from cold-formed welded profiles. In the second model, additional rod elements were added to the ridge zone, while the third incorporated cross-bracing in the lower chord to improve spatial stiffness. The baseline model showed the lowest frequency values, reflecting greater flexibility and sensitivity to dynamic effects. Adding upper elements gradually increased the frequencies without anomalies, whereas the cross-braced configuration produced the widest spectrum, indicating enhanced stiffness and better coordination of structural elements. The results confirm that the introduced modifications improve the dynamic behaviour of single-storey industrial buildings and enhance their resistance to seismic and wind loads.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"81 ","pages":"Pages 417-421"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147652742","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

Corrosion degradation of Inconel 601 in a static lead melt at temperatures of 450 and 650 °C 在450°C和650°C的静态铅熔体中，Inconel 601的腐蚀退化

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-04-08 DOI: 10.1016/j.prostr.2026.03.081

Anatolii Klymenko , Mikhail Byk , Alexander Shapiro , Olexandr Buket , Svitlana Kovalenko , Yurii Kovalenko

{"title":"Corrosion degradation of Inconel 601 in a static lead melt at temperatures of 450 and 650 °C","authors":"Anatolii Klymenko , Mikhail Byk , Alexander Shapiro , Olexandr Buket , Svitlana Kovalenko , Yurii Kovalenko","doi":"10.1016/j.prostr.2026.03.081","DOIUrl":"10.1016/j.prostr.2026.03.081","url":null,"abstract":"<div><div>The results of the study of corrosion degradation of the INCONEL 601 alloy in a static lead melt with limited oxygen access at temperatures of 450 and 650 °C for 1440 hours, with intermediate examination of samples after 240, 480 and 1000 hours of testing, are presented. It was found that increasing the melt temperature from 450 °C to 650 °C leads to an increase in the corrosion rate of the alloy by more than 10 times. On the other hand, an increase in the duration of the tests is characterized by a tendency to reduce the corrosion rate by approximately 2 times at a melt temperature of 650 °C and by more than 11 times at a melt temperature of 450 °C, which is explained by the formation of surface-blocking protective oxide films and corrosion products. The steel surface morphology of the formed oxide deposits, the structure and elemental composition were studied by X-ray spectral microanalysis with an energy dispersive spectrometer. The results of optical microscopy and durometric analysis are also presented. It was also found that after the tests, a layer of corrosion products of a dense sandwich structure is formed with a clear separation of layers, which include O, Al, Cr, Fe, Ni and Pb, and the quantitative composition of which varies with thickness. It is shown that molten lead, after 1440 hours, replaces nickel in the surface layers of the alloy, penetrating deep into the base metal, and nickel, due to diffusion through the melt, crystallizes on the surface of the melt in the form of nickel oxide.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"81 ","pages":"Pages 470-477"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147652767","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

Non-destructive testing of underground pipelines corrosion protection 地下管线防腐无损检测

Procedia Structural Integrity Pub Date : 2026-01-01 Epub Date: 2026-04-08 DOI: 10.1016/j.prostr.2026.03.018

Roman Dzhala , Bohdan Verbenets , Vasyl Dzhala , Maryan Melnyk , Oleh Senyuk

引用次数: 0