Applications in engineering science最新文献_第3页

Shrinkage properties of steel fiber reinforced concrete- A review 钢纤维混凝土的收缩性能综述

IF 2.2

Applications in engineering science Pub Date : 2025-06-25 DOI: 10.1016/j.apples.2025.100244

Mohammad Abedi , Terje Kanstad , Stefan Jacobsen , Guomin Ji

{"title":"Shrinkage properties of steel fiber reinforced concrete- A review","authors":"Mohammad Abedi , Terje Kanstad , Stefan Jacobsen , Guomin Ji","doi":"10.1016/j.apples.2025.100244","DOIUrl":"10.1016/j.apples.2025.100244","url":null,"abstract":"<div><div>Cracks induced by concrete shrinkage may allow corrosive agents to penetrate steel reinforced concrete and deteriorate the reinforcement. Adding randomly distributed steel fiber to concrete can reduce shrinkage and prevent the initiation of cracking, along with improving tensile strength and ductility. Autogenous shrinkage and drying shrinkage are the most important types of shrinkage in steel fiber reinforced concrete (SFRC). There is a general lack of knowledge related to the autogenous and drying shrinkage of SFRC. In the paper, the main factors that affect the autogenous shrinkage and drying shrinkage of SFRC are thoroughly examined through literature review. These factors include fiber volume, fiber geometry, curing method, water binder ratio (w/b), expansive agent, shrinkage mitigation, supplementary cementitious material (SCM), admixtures and hybridizing different fiber materials. It is concluded that increasing fiber volume up to some optimal volume, using expansive agents and shrinkage mitigation, as well as hybridizing different fibers, can reduce markedly the drying shrinkage. Furthermore, the water binder ratio, curing method and presence of silica fume, fly ash, and ground granulated blast furnace slag (GGBFS) influence shrinkage development in SFRC. In the last part, models predicting the autogenous and drying shrinkage of SFRC are discussed and new research is proposed.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"23 ","pages":"Article 100244"},"PeriodicalIF":2.2,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535506","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

Neural network-based metamodel for scaffolding behavior: Application for structural load analysis and safety enhancement 基于神经网络的脚手架行为元模型：在结构荷载分析和安全性增强中的应用

IF 2.2

Applications in engineering science Pub Date : 2025-06-21 DOI: 10.1016/j.apples.2025.100240

Mohamad Al Omari , Mojtaba Eslahi , Rani El Meouche , Amine Ammar , Laure Ducoulombier , Laurent Guillaumat

{"title":"Neural network-based metamodel for scaffolding behavior: Application for structural load analysis and safety enhancement","authors":"Mohamad Al Omari , Mojtaba Eslahi , Rani El Meouche , Amine Ammar , Laure Ducoulombier , Laurent Guillaumat","doi":"10.1016/j.apples.2025.100240","DOIUrl":"10.1016/j.apples.2025.100240","url":null,"abstract":"<div><div>Scaffolding safety remains a critical challenge in construction, contributing significantly to site accidents and injuries. This study addresses the issue by developing a metamodel to simulate scaffolding behavior under dynamic loads, such as wind and worker activities, to prevent failure and enhance structural reliability. A finite element model (FEM) was developed to analyze 30,000 scenarios, significantly reducing the time required for structural assessments. To optimize efficiency further, a neural network was trained to accurately predict scaffolding responses, achieving an impressive R<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span> value of 0.9996, thus minimizing reliance on time-intensive FEM simulations. While not a full digital twin implementation, this research establishes a strong foundation for integrating such technology in the future. By demonstrating the potential of metamodeling for improving safety and efficiency, the study offers valuable insights for advancing digital solutions in construction safety and sets the stage for further exploration of digital twin systems in the industry.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"23 ","pages":"Article 100240"},"PeriodicalIF":2.2,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480292","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

Phenomenological–based strategy for the Gurson-Tvergaard-Needleman model parameters identification Gurson-Tvergaard-Needleman模型参数辨识的现象学策略

IF 2.2

Applications in engineering science Pub Date : 2025-06-20 DOI: 10.1016/j.apples.2025.100243

R. Bensaada , A. Imad , T. Kanit , A. EL Moumen , M. Almansba , A. Saouab

{"title":"Phenomenological–based strategy for the Gurson-Tvergaard-Needleman model parameters identification","authors":"R. Bensaada , A. Imad , T. Kanit , A. EL Moumen , M. Almansba , A. Saouab","doi":"10.1016/j.apples.2025.100243","DOIUrl":"10.1016/j.apples.2025.100243","url":null,"abstract":"<div><div>The Gurson–Tvergaard–Needleman GTN model is widely used for ductile fracture simulations. However, the selection of its parameters is often done randomly to reproduce the experimental data without considering the physical consistency of the set of parameters selected. This contribution is dedicated to the relevance of the GTN model parameters selection using a consistent method based on the ductile fracture phenomenology.</div><div>The proposed method consists of the prioritization of the void volume fraction parameters in accordance with the kinetics of the ductile fracture phenomenon, while the nucleation and fracture parameters are chosen in conformity to the strength to fracture. Experimental data obtained from 12NC6 steel is used through various tests. Axisymmetric notched and compact tension specimens are used. The interest of the use of this variety of tests lies in the variation of stress triaxiality ratio given its widely proven importance in the ductile fracture process. The strategy is finally applied to a CT (Compact-Tension) test simulation. Satisfactory result are achieved while the number of attempts to reproduce the experimental data is considerably reduced, this lead to considerable saving of computational time.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"23 ","pages":"Article 100243"},"PeriodicalIF":2.2,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580086","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

Coupling FVM and FEM using coupling code with Code Saturne and Code ASTER 用code Saturne和code ASTER耦合代码耦合FVM和FEM

IF 2.2

Applications in engineering science Pub Date : 2025-06-19 DOI: 10.1016/j.apples.2025.100237

Dimitri Vesvard , Philippe Karamian-Surville , Nizar Abcha

引用次数: 0

Pull-out and push-off behavior of self-compacting concrete for precast structures after elevated temperature 高温作用下预制结构自密实混凝土的拉脱性能

IF 2.2

Applications in engineering science Pub Date : 2025-06-10 DOI: 10.1016/j.apples.2025.100239

Balamurali Kanagaraj , N. Anand , Samuvel Raj R , Eva Lubloy

{"title":"Pull-out and push-off behavior of self-compacting concrete for precast structures after elevated temperature","authors":"Balamurali Kanagaraj , N. Anand , Samuvel Raj R , Eva Lubloy","doi":"10.1016/j.apples.2025.100239","DOIUrl":"10.1016/j.apples.2025.100239","url":null,"abstract":"<div><div>The present study aims to develop and evaluate a sustainable, cement-free self-compacting geopolymer concrete (SCGC) using recycled aggregates and to assess its performance under elevated temperature conditions. The main objective is to compare the bond and shear behavior of SCGC with conventional cement concrete (reference concrete) and cement-based self-compacting concrete (SCC) before and after fire exposure. Three concrete types were prepared namely, reference concrete, SCC, and SCGC. The SCC and SCGC mixes met EFNARC guidelines for self-compacting behavior. Specimens were subjected to elevated temperatures for 1 and 2 h. Post-heating performance was evaluated based on mass loss, compressive strength, bond stress (BS), and interfacial shear stress (ISS). Results showed that after 1 h of heating, SCGC exhibited the highest bond stress, followed by SCC and reference concrete. Mass loss for SCGC was lower (4.5 % after 1 h; 5.6 % after 2 h) than others. Strength losses after 2 h were severe (65 % for reference, 69 % for SCC, and 67 % for SCGC). Bond stress and ISS losses exceeded 90 % after 2 h, representing severe degradation. Increased heating also resulted in higher slip, reducing bond integrity. SCGC demonstrated better thermal resistance initially, but all concrete types experienced substantial performance loss after prolonged high-temperature exposure.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"23 ","pages":"Article 100239"},"PeriodicalIF":2.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280403","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

Microstructure and tribological characterization of thin wall of bimetallic austenitic steel fabricated through wire arc additive manufacturing (WAAM) 电弧增材制造（WAAM）双金属奥氏体钢薄壁的显微组织和摩擦学特性

IF 2.2

Applications in engineering science Pub Date : 2025-06-10 DOI: 10.1016/j.apples.2025.100241

Rupendra S. Tanwar, Suyog Jhavar

{"title":"Microstructure and tribological characterization of thin wall of bimetallic austenitic steel fabricated through wire arc additive manufacturing (WAAM)","authors":"Rupendra S. Tanwar, Suyog Jhavar","doi":"10.1016/j.apples.2025.100241","DOIUrl":"10.1016/j.apples.2025.100241","url":null,"abstract":"<div><div>Austenitic stainless steels, such as SS316L, are widely employed in thin rotary components like blades and impellers due to their exceptional thermal resistance, wear resistance, and corrosion properties. This study examines the dry sliding wear behaviour of wire arc additive manufactured (WAAM) austenitic bimetallic structures (BMS) comprising SS316L and SS309. Wear tests were conducted using a pin-on-disc tribometer with a flat-on-flat configuration, utilizing 3 mm square pins extracted from distinct regions of the base metals and their interface, tested against an EN31 steel disc (61 HRC). The initial average coefficient of friction (CoF) for SS316L ranged between 0.41 and 0.64, whereas the SS316L-SS309 interface demonstrated a lower CoF of 0.42 to 0.58, attributed to increased ferrite content and hardness during the initial running-in phase. X-ray diffraction results revealed the formation of iron oxides and chromium oxide on the worn surface of the plate. Microstructural and energy dispersive spectroscopy (EDS) analyses indicated that the higher ferrite content in SS309 and interface regions significantly enhanced wear resistance compared to SS316L. The wear mechanism transitioned from combined abrasive-adhesive wear to adhesive wear with plastic deformation and severe material loss. Analysis of wear debris confirmed progressive oxide layer removal during sliding, leading to increased wear. The superior hardness and ferritic phase in SS309 and interface regions contributed to improved wear resistance, underscoring the potential of austenitic BMS for applications requiring high wear performance. This study emphasizes the critical role of microstructural tailoring in optimizing wear characteristics in WAAM-fabricated austenitic BMS components.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"23 ","pages":"Article 100241"},"PeriodicalIF":2.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298646","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

Three-dimensional analysis of flow physics around a sphere inside a cone 圆锥体内球体周围流动物理的三维分析

IF 2.2

Applications in engineering science Pub Date : 2025-06-09 DOI: 10.1016/j.apples.2025.100238

Hamidreza Zarei, Seyed Reza Maadi

{"title":"Three-dimensional analysis of flow physics around a sphere inside a cone","authors":"Hamidreza Zarei, Seyed Reza Maadi","doi":"10.1016/j.apples.2025.100238","DOIUrl":"10.1016/j.apples.2025.100238","url":null,"abstract":"<div><div>This study presents a comprehensive three-dimensional numerical investigation of the flow physics around a sphere positioned inside a conical geometry, focusing on the influence of varying Reynolds numbers (102 to 10,268) and the sphere's spatial configuration on flow characteristics and drag forces. Initially, the numerical methodology was validated by simulating the flow around a sphere in an unbounded domain and comparing results with established experimental data. Subsequently, simulations were conducted within a conical enclosure, where the sphere (diameter 0.3 m) was placed at various vertical distances relative to the inlet (ranging from 1.4 m to 0.6 m) and near the cone wall (maintaining a 10 cm gap). Results revealed a significant dependence of the drag coefficient on the sphere’s position and the development of the boundary layer within the cone. As the vertical distance from the inlet increased, the drag coefficient decreased, particularly at lower Reynolds numbers. When the sphere was positioned closer to the wall, the drag coefficient was notably affected by the growth of the boundary layer, leading to substantial reductions as the vertical distance increased. These findings highlight the complex interplay between viscous and inertial forces in confined flows and provide valuable insights for optimizing fluidic systems, micro-devices, and industrial applications involving particle dynamics in constricted geometries. The research underscores the importance of spatial positioning in modulating flow behavior and drag reduction strategies in non-uniform domains.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"23 ","pages":"Article 100238"},"PeriodicalIF":2.2,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280402","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

Investigation of noise generation due to interference between leading edge separation bubbles and blade surface 前缘分离泡与叶片表面干涉产生噪声的研究

IF 2.2

Applications in engineering science Pub Date : 2025-05-29 DOI: 10.1016/j.apples.2025.100231

K. Seto , K. Iwano , Y. Sakai , Y. Ito , S. Kosaka , K. Yoshida

{"title":"Investigation of noise generation due to interference between leading edge separation bubbles and blade surface","authors":"K. Seto , K. Iwano , Y. Sakai , Y. Ito , S. Kosaka , K. Yoshida","doi":"10.1016/j.apples.2025.100231","DOIUrl":"10.1016/j.apples.2025.100231","url":null,"abstract":"<div><div>Sirocco fans are used in familiar applications such as car air-conditioners due to their compactness, and reducing the noise they generate is an important social issue. However, the mechanism of their noise generation has not been well studied. The objective of this study is to identify the physical quantities contributing to noise generation by examining the “interference between the leading-edge separation bubble and the blade surface” as an fundamental process. To achieve this, numerical simulations were conducted for the cascade models with three blade shapes of varying thicknesses. The length of the separation bubble, its thickness, and the size of the vortex all decreased with increasing blade thickness. Generated noise was predicted using Curle’s equation, and noise measurement experiments were performed with a similar system to validate the prediction accuracy. The results showed good agreement, and the generated noise was reduced at almost all frequencies with increasing blade thickness. To clarify the reasons for this, the cospectra of the time derivative of the fluctuating pressure on the suction surface were analyzed in detail. The following conclusions were drawn: To reduce the noise generated by a sirocco fan, it is effective to reduce the peak value and broaden the shape of the fluctuating pressure distribution on the blade surface and decrease the vortex size.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"23 ","pages":"Article 100231"},"PeriodicalIF":2.2,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211902","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

Digitizing SMEs in the EU: A scalable model for retrofitting machinery to Industry 4.0 欧盟中小企业数字化：工业4.0机械改造的可扩展模型

IF 2.2

Applications in engineering science Pub Date : 2025-05-26 DOI: 10.1016/j.apples.2025.100230

Gabriel Gašpar , Roman Budjač , Maroš Valášek , Martin Bartoň , Tomáš Meravý , Maximilián Strémy

{"title":"Digitizing SMEs in the EU: A scalable model for retrofitting machinery to Industry 4.0","authors":"Gabriel Gašpar , Roman Budjač , Maroš Valášek , Martin Bartoň , Tomáš Meravý , Maximilián Strémy","doi":"10.1016/j.apples.2025.100230","DOIUrl":"10.1016/j.apples.2025.100230","url":null,"abstract":"<div><div>Small and Medium-sized Enterprises (SMEs) have faced significant economic challenges since the COVID-19 pandemic, compounded by high inflation, rising energy costs, and the cessation of government financial support. War-related disruptions in Europe have further exacerbated these issues. As the backbone of the European economy, SMEs must embrace Industry 4.0 to remain competitive. However, many lack the resources or expertise to adopt smart technologies. This article proposes a cost-effective, scalable model to guide SMEs in transitioning towards Industry 4.0 by retrofitting existing machinery. By assessing machinery readiness and identifying critical areas for digitization, the model enables targeted investments that optimize production and reduce costs. A gradual, tailored approach ensures alignment with SMEs’ financial and technical capacities, fostering modernization and long-term growth. The successful implementation of the AFB production system highlights the feasibility of retrofitting existing systems to meet modern manufacturing demands.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"23 ","pages":"Article 100230"},"PeriodicalIF":2.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168830","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 socio-spatial analysis of commuter preferences and behavior for driving sustainable rail network development 驱动可持续轨道网络发展的通勤偏好和行为的社会空间分析

IF 2.2

Applications in engineering science Pub Date : 2025-05-25 DOI: 10.1016/j.apples.2025.100236

Üsame Ekici , Hediye Tuydes-Yaman , Sarbast Moslem

{"title":"A socio-spatial analysis of commuter preferences and behavior for driving sustainable rail network development","authors":"Üsame Ekici , Hediye Tuydes-Yaman , Sarbast Moslem","doi":"10.1016/j.apples.2025.100236","DOIUrl":"10.1016/j.apples.2025.100236","url":null,"abstract":"<div><div>To support sustainable transportation network development, Türkiye made big investments in the rail sector, including High-Speed Rail (HSR) services. To better understand the rail commuter sector and its potential connection to the Eurasian corridors in the future, current trends in the Turkish rail commuter transportation sector are investigated using the nationwide conducted rail commuter survey. Spatial analysis of the trips of 7028 rail commuters showed major desire lines, which are centered around a few cities with relatively shorter intercity travel distances. Further analysis of sociodemographic information showed a higher rate of young and middle-aged travelers who were mostly male, suggesting gender inequality in the rail commuter sector. Rail commuters preferred HSR mostly for “shorter time” and “more comfort” reasons and conventional rail for “lower cost” and “more comfort\". Binary logit analysis of the business trips also revealed that being male, having a higher age, and returning the same day have a positive impact on the likelihood of making a business trip.</div></div>","PeriodicalId":72251,"journal":{"name":"Applications in engineering science","volume":"23 ","pages":"Article 100236"},"PeriodicalIF":2.2,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195979","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