Article
Metallurgy & Metallurgical Engineering
Shouvik Ganguly, Xin Wang, K. Chandrashekhara, Mario F. Buchely, Simon Lekakh, Ronald J. O'Malley, Dengqi Bai, Yufeng Wang
Summary: This study develops a 3D finite element model to simulate and analyze the healing of internal voids in hot-rolled steel plate. The results show that through thickness plastic strains within the slab influence void closure, and variation in void size and locations affect the healing possibilities. The effect of thermal history and thermo-mechanical stresses on void closure is also studied.
STEEL RESEARCH INTERNATIONAL
(2021)
Article
Engineering, Mechanical
Linus Andersson, Peter Persson, Kent Persson
Summary: This paper investigates strategies for reduced order modeling of geometrically nonlinear finite element models. Simulation-free, non-intrusive approaches are considered, which do not require access to the source code of a finite element program. The study focuses on flat structures and proposes a methodology for generating computationally efficient reduced order models. The concepts are validated on solid beam models and continuously supported shell models, and strategies for efficient time integration are discussed and evaluated.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Xinyu Ning, Haijun Li, Ning Xiang, Ruihao Li, Guodong Wang
Summary: In recent years, some heavy reduction technologies have been applied to casting slabs or blooms to eliminate internal shrinkage cavities. These technologies can be classified as single-pass reduction type and multi-pass reduction type. However, there is no consistent conclusion about the influence of reduction type on void closure. This study investigated the influence of reduction type on the closure of shrinkage cavity in bloom during hot-core heavy reduction rolling (HHR2) through simulation experiments.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Physical
Dan Xie, Qiu-yue Ouyang, Luo-yu He, Wu-jiao Xu
Summary: In this study, a staged feed strategy based on the evolution of ring instability is proposed to control the rolling stability of a large-scale ring. The feed scheme is determined using the central composite design (CCD) method, and the established mathematical model is applied to obtain the radial feed curves. Finite element method (FEM) simulation is conducted to establish a rolling map for controlling roundness error, eccentricity, and vibration. The comparison of simulation and production trial results proves the reliability of the feed curve designed based on the stable rolling region.
Article
Engineering, Manufacturing
Eduard Laurentiu Nitu, Daniela Monica Iordache, Claudiu Badulescu
Summary: This study analyzed the influence of the maximum set force and workpiece diameter on the productivity and quality of formed grooves in radial cold-rolling process through numerical simulations. The penetration curve of roller-tools in the material was determined based on experimental research, and optimal conditions for the rolling process were identified through multivariable analysis and efficient process criteria definition.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2022)
Article
Automation & Control Systems
Tieheng Yuan, Wenquan Sun, Anrui He, Luzhen Chen, Chao Liu, Shengyi Yong
Summary: This paper addresses the issue of quarter waves in the production of cold rolled high strength steel and proposes a BP-MOPSO-based shape optimization model for the 65MN strip produced by the 1720 UCM mill. Simulation results demonstrate that the optimized bending force setting can effectively improve the strip shape and reduce the occurrence of quarter wave shapes.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Metallurgy & Metallurgical Engineering
Zhu-bo Liu, Xin-yue Wang, Ming-shuo Liu, Yuan-ming Liu, Jiang-lin Liu, A. V. Ignatov, Tao Wang
Summary: Ti/Cu/Ti laminated composites fabricated by CR and FR methods were investigated. The results showed that CR laminated composites had higher mechanical properties and exhibited different microstructures compared to FR laminated composites.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Metallurgy & Metallurgical Engineering
Nobufumi Ueshima, Katsunari Oikawa
Summary: This study investigated the closure behavior of large voids in S10C steel plates during hot rolling and examined whether hydrostatic integration (Q-value) could be used to predict the void closure. It was found that temperature had negligible effect on closure behavior. Voids along the rolling and transverse directions almost completely closed at a reduction of 40%, while voids in the normal direction could not close. The width of rolling direction void linearly decreased with reduction increase. Finite element analysis showed that the void volume over initial volume (V/V0) could be expressed as a function of the Q-value for rolling and transverse direction voids, but not for normal direction voids.
ISIJ INTERNATIONAL
(2023)
Article
Construction & Building Technology
Zi-Qing Yuan, Yu Xin, Zuo-Cai Wang, Ya-Jie Ding, Jun Wang, Dong-Hui Wang
Summary: This study proposes a novel nonlinear model updating approach based on an improved generative adversarial network (GAN). The improved GAN incorporates a convolutional neural network (CNN) surrogate model into the discriminator network to enhance its learning capability. The trained network model based on measured acceleration amplitudes can accurately estimate the nonlinear model parameters. Numerical simulations and experimental tests confirm the reliability and effectiveness of the improved GAN model for structural nonlinear model updating under seismic excitations.
STRUCTURAL CONTROL & HEALTH MONITORING
(2023)
Article
Chemistry, Physical
Honghao Wang, Sheng Ding, Tom Taylor, Jun Yanagimoto
Summary: In this study, an efficient elastic-plastic analysis method was established using the finite element method with zooming analysis to predict metal plate texture after cold rolling. The method was validated through comparison of experimental and simulation results for an S45C plate with a body-centered cubic lattice. The numerical analysis method proposed in this study can serve as an alternative to experimental approaches and contribute to the study of anisotropy.
Article
Engineering, Manufacturing
Hongbin Zhang, Wu Zhao, Dan Huang, Chaofan Sun, Junkai Fan
Summary: This article reveals the vibration stability of the cold rolling system under different parameter conditions by establishing a vertical nonlinear vibration model. The results show that parameter changes can cause bifurcation and chaos, and a nonlinear phenomenon of the system is also found. Furthermore, the parameter matching regions for periodic and chaotic motions of the cold rolling system are determined.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Engineering, Marine
Zhanyang Chen, Hongbin Gui, Xiyu Liao, Mengchao Du
Summary: This study introduces a three-dimensional nonlinear hydroelastic theory and conducts numerical simulations on the dynamic response of a flexible hull, comparing different methods and discussing their reasonable applicable conditions for structural design.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Mechanics
A. R. Vishnu, J. C. Nieto-Fuentes, J. A. Rodriguez-Martinez
Summary: This paper uses 3D finite element calculations to investigate the formation of shear localization bands under dynamic twisting conditions in thin-walled tubes with porous microstructures. The results show that the spatial location and size distribution of the voids have an influence on the formation of shear bands.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Computer Science, Artificial Intelligence
Chun Kit Jeffery Hou, Kamran Behdinan
Summary: This paper describes the use of dimension-reduced neural networks (DR-NNs) for predicting temperature changes due to plastic deformation in a two-stage cold rolling process. The DR-NNs reduce the computational time and prediction uncertainty compared to a standalone neural network by using linear and nonlinear dimensionality reduction methods to reduce the input space to a smaller set of principal components.
AI EDAM-ARTIFICIAL INTELLIGENCE FOR ENGINEERING DESIGN ANALYSIS AND MANUFACTURING
(2023)
Article
Metallurgy & Metallurgical Engineering
Lianjie Li, Haibo Xie, Tianwu Liu, Xingsheng Li, Xu Liu, Mingshuai Huo, Enrui Wang, Jianxin Li, Hongqiang Liu, Li Sun, Zhengyi Jiang
Summary: In this study, an elastic-plastic multi-stand FE model considering the work hardening effect was proposed for investigating the influence of rolling force on strip shape. The results show that the strip crown exhibits varying trends at different stands with changes in rolling force. This research offers a new perspective on TCR simulation and enhances understanding of the impact of rolling force on strip shape.
STEEL RESEARCH INTERNATIONAL
(2022)