Jianhua Guo

Mar 6, 2025 | mdpi.com | Zhenzhen Liu |Jianhua Guo |Chenghang Li |Lijun Wang

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Nov 27, 2024 | nature.com | Tianchi Li |Qi Chen |Jia Zhou |Zhi Cao |Jianhua Guo |Zhongyuan Yang | +10 more

The cladding of fast reactor fuel rods, made of stainless steel, presents significant challenges in cutting due to its ductility, which leads to increased tool wear and poor cut quality with traditional mechanical methods. Laser cutting has emerged as a superior alternative, offering non-contact precision, high efficiency, and suitability for radioactive environments. This study systematically investigates the effects of laser cutting parameters—cutting speed, focal position, power, and gas pressure—on the cutting quality of simulated fast reactor fuel rods. The results show that optimal cutting is achieved with a cutting speed of 1 m/min, a focal position between − 20 and − 25 mm, a laser power between 7200 and 9600 W, and a gas pressure of 10 MPa. These parameters provide the best balance between cutting efficiency, surface roughness, and minimal slag formation. This study contributes valuable insights into optimizing laser cutting technology for nuclear fuel rod processing, with potential applications in fuel reprocessing and decommissioning.

Jul 21, 2024 | mdpi.com | Shidong Wang |Yuanyuan Liu |Jianhua Guo |Jinping Liu

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.

Jun 19, 2023 | mdpi.com | Jianhua Guo |Liang Chu |Chenguang Bai |Yinhang Wang

4.1. Dynamic Vertical Wheel Load Observation and Braking Torque Distribution ResultsThe dataset used in this paper is derived from the results of real vehicle tests conducted with a cooperative enterprise. Stress–strain sensor strips were installed on the suspension of the test vehicle to measure the dynamic vertical load of the wheels, as shown in Figure 12.