Kohei Nagai

2.3k total citations
108 papers, 1.8k citations indexed

About

Kohei Nagai is a scholar working on Civil and Structural Engineering, Building and Construction and Materials Chemistry. According to data from OpenAlex, Kohei Nagai has authored 108 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 88 papers in Civil and Structural Engineering, 47 papers in Building and Construction and 16 papers in Materials Chemistry. Recurrent topics in Kohei Nagai's work include Concrete Corrosion and Durability (51 papers), Structural Behavior of Reinforced Concrete (43 papers) and Innovative concrete reinforcement materials (20 papers). Kohei Nagai is often cited by papers focused on Concrete Corrosion and Durability (51 papers), Structural Behavior of Reinforced Concrete (43 papers) and Innovative concrete reinforcement materials (20 papers). Kohei Nagai collaborates with scholars based in Japan, United States and Thailand. Kohei Nagai's co-authors include Tamon Ueda, Yasuhiko Sato, Punyawut Jiradilok, Koji Matsumoto, Hosein Naderpour, John E. Bolander, Mohammad Haji, Benny Suryanto, Koichi Maekawa and Shingo Asamoto and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Power Sources and Scientific Reports.

In The Last Decade

Kohei Nagai

99 papers receiving 1.8k citations

Peers

Kohei Nagai

CSE

POLLU

Lennart Elfgren Sweden

Mostafa Kazemi Iran

Anna Saetta Italy

Rui Faria Portugal

Mohsen A. Issa United States

Salvador Ivorra Spain

Dan G. Zollinger United States

Max A.N. Hendriks Netherlands

Jinhua Zhang China

Clay Naito United States

Lennart Elfgren Sweden

Kohei Nagai

1.5k ×1.0

CSE

776 ×1.1

179 ×0.6

138 ×0.7

79 ×0.7

POLLU

Citations per year, relative to Kohei Nagai Kohei Nagai (= 1×) peers Lennart Elfgren

Countries citing papers authored by Kohei Nagai

Since Specialization

Citations

This map shows the geographic impact of Kohei Nagai's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kohei Nagai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kohei Nagai more than expected).

Fields of papers citing papers by Kohei Nagai

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kohei Nagai. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kohei Nagai. The network helps show where Kohei Nagai may publish in the future.

Co-authorship network of co-authors of Kohei Nagai

This figure shows the co-authorship network connecting the top 25 collaborators of Kohei Nagai. A scholar is included among the top collaborators of Kohei Nagai based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kohei Nagai. Kohei Nagai is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Wang, Haoyu, Jie Luo, Shingo Asamoto, Yoshiyuki Sakai, & Kohei Nagai. (2025). Mesoscale simulation of cracking and shrinking during drying under coupled effect of environmental factors using 3D RBSM. Case Studies in Construction Materials. 22. e04317–e04317.

Luo, Jie, et al.. (2025). Effect of DEF-induced expansion on flexural capacity, stress redistribution, and crack propagation in prestressed RC beams: 3D RBSM simulation with experimental comparison. Engineering Structures. 348. 121820–121820.

Ren, Dawei, Yi Gao, Jiaxu Yao, et al.. (2025). Integrated mechanical-conduit modeling approach for RBSM Investigation of moisture transport in cracked concrete: Tensile fracture and rebar pull-out effects. Structures. 80. 109976–109976.

Asamoto, Shingo, et al.. (2025). Investigation of the compressive behaviour of restrained concrete with DEF and ASR-DEF deteriorations. Construction and Building Materials. 481. 141586–141586. 1 indexed citations

Luo, Jie, et al.. (2025). Estimating RC corrosion distribution from surface cracks using mesoscale analysis integrated with machine learning. Cement and Concrete Composites. 157. 105950–105950. 2 indexed citations

Gu, Xianglin, Tian Zhou, Kohei Nagai, Hong Zhang, & Qian-Qian Yu. (2024). Prediction of seismic performance of a masonry-infilled RC frame based on DEM and ANNs. Engineering Structures. 316. 118531–118531. 7 indexed citations

Ren, Dawei, et al.. (2024). Meso-scale simulation of moisture transport in concrete during wet-dry cycles using 3D RBSM conduit model with variable diffusion model. Cement and Concrete Composites. 149. 105497–105497. 7 indexed citations

Wang, Yi, et al.. (2024). Flexural performance of narrow RC beams hybrid strengthened by TRECC plate. Engineering Structures. 319. 118869–118869. 4 indexed citations

Nagai, Kohei, et al.. (2024). Optimization-Based Analysis of Diagonal Tension Failure of Reinforced Concrete Dapped-End Beams. Journal of Structural Engineering. 150(10). 1 indexed citations

10.

Nagai, Kohei, et al.. (2023). Equilibrium-based analysis of diagonal tension failure from a re-entrant corner of an RC half-joint. Structures. 59. 105708–105708. 5 indexed citations

11.

Nagai, Kohei, et al.. (2023). Variability in jacking resistance of adjacent steel pipe piles under controlled pile installation. SOILS AND FOUNDATIONS. 64(1). 101402–101402. 3 indexed citations

12.

Nagai, Kohei, et al.. (2023). Multiclass Segmentation of Concrete Surface Damages Using U-Net and DeepLabV3+. Applied Sciences. 13(4). 2398–2398. 16 indexed citations

13.

Nagai, Kohei, et al.. (2023). Piling Data-Driven Framework for Optimized Pile Structures Based on Minimizing the Expected Total Cost. Applied Sciences. 13(18). 10216–10216. 1 indexed citations

14.

Wang, Yi, et al.. (2023). Shear cracking behavior of pre-damaged PVA-aggregate mixed ECC beams: Direct observation using DIC. Engineering Fracture Mechanics. 295. 109757–109757. 11 indexed citations

15.

Nagai, Kohei, Takayuki Osa, Gen Inoue, et al.. (2022). Sample-efficient parameter exploration of the powder film drying process using experiment-based Bayesian optimization. Scientific Reports. 12(1). 1615–1615. 11 indexed citations

16.

Jiradilok, Punyawut, et al.. (2020). Simulation of effect of stirrup confinement on residual bond performance of corroded RC by 3D RBSM. 72(4). 323–327. 1 indexed citations

17.

Jiradilok, Punyawut, et al.. (2020). Analysis of Seismic Performance of Suspension Bridge in Myanmar. Journal of Disaster Research. 15(3). 360–367. 1 indexed citations

18.

Takeuchi, Wataru, et al.. (2018). Structure Deformation Measurement with Terrestrial Laser Scanner at Pathein Bridge in Myanmar. Journal of Disaster Research. 13(1). 40–49. 9 indexed citations

19.

Matsumoto, Koji, et al.. (2017). Mesoscopic analysis of different expansion causes in concrete by 3D Rigid Body Spring Model. 69(4). 181–185. 1 indexed citations

20.

Hayashi, Daisuke & Kohei Nagai. (2013). MESOSCOPIC SIMULATION OF RC ANCHORAGE PERFORMANCE IN MULTI-DIRECTIONAL REINFORCEMENTS BY 3D DISCRETE ANALYSIS. Journal of Japan Society of Civil Engineers Ser E2 (Materials and Concrete Structures). 69(2). 241–257.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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