Article
Chemistry, Physical
Tianhang Yu, Yu Su, Jun Li, Huaqing Fu, Zhouxiang Si, Xiaopei Liu
Summary: This study investigated the stress-strain behavior and microstructural changes of Fe-Mn-Si-C twin-induced plasticity (TWIP) steel cylindrical components at different depths of deep drawing and after deep drawing deformation at various positions. The research revealed that the extent of grain deformation and structural defects gradually increased with increasing drawing depth. Different predominant textures were observed at different positions of the cylinder components.
Article
Engineering, Mechanical
Qiang Guo, Yue Zheng, Shengqiang Cai
Summary: In this work, a theoretical framework is formulated to model the complex behaviors of LCEs with thermo-electro-mechanical coupling. Analytical solutions for homogeneous deformation are derived. A numerical approach that employs a quasi-convexified free energy function and achieves a key transformation of reference configuration is proposed for finite element simulation. The effectiveness of the model and numerical approach are validated through various simulations, demonstrating their potential applications.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
Article
Nanoscience & Nanotechnology
Atef Hamada, Ali Khosravifard, Sumit Ghosh, Matias Jaskari, Marion Kreins, Walaa Abd-Elaziem, Mohamed Wahba, Essam Ahmed, Tarek Allam
Summary: This study highlights the strengthening mechanisms observed during the metal joining of high-strength grade steels and provides insights into the microstructural features and mechanical strength evaluation. The results show that laser welding can induce fully martensitic structures and refined grains in the heat affected zone, leading to improved hardness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Civil
M. B. Jablonska, K. Kowalczyk, M. Tkocz, T. Bulzak, I. Bednarczyk, S. Rusz
Summary: The paper presents results of FEM modelling, properties, and microstructure of ultralow-carbon ferritic steel after unconventional SPD process - DRECE. The DRECE process has a significant influence on the hardness distribution, fracture behavior, and microstructure evolution of the steel, leading to an increase in steel strength properties. Microstructural investigations show that the processed strips exhibit a dislocation cell microstructure and subgrains with low-angle grain boundaries, indicating a high level of grain refinement facilitated by this unconventional SPD method.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Z. Liu, J. Reinoso, M. Paggi
Summary: A three-dimensional hygro-thermo-mechanical computational framework for photovoltaic laminates has been established and successfully implemented in this study. The method takes into account the thermal properties in thin-walled structures and the characteristics of polymeric interfaces, showing efficiency and reliability.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2022)
Article
Engineering, Civil
Sallal R. Abid, Nildem Taysi, Mustafa Ozakca, Junqing Xue, Bruno Briseghella
Summary: In this study, a full-scale 3D thermo-mechanical Finite Element model was used to investigate the impact of open-field thermal loads on box-girder bridges. The analysis showed similarities between stress distributions and temperature distributions, and the results indicated maximum compressive stress in both summer and winter conditions.
Article
Chemistry, Physical
Fatih Sikan, Priti Wanjara, Javad Gholipour, Amit Kumar, Mathieu Brochu
Summary: The research aimed to develop a finite element model for electron beam additive manufacturing of Ti-6Al-4V, which was validated with fabricated samples and thermocouple measurements. The model showed reliability in predicting temperatures, residual stresses, and distortion profiles, with low average error in thermal predictions. The model successfully predicted cooling rates, grain morphology, and microstructure, with maximum deviations in mechanical predictions as low as 100 MPa in residual stresses and 0.05 mm in distortion.
Article
Polymer Science
Ning Jiang, Xintao Zhao, Mingdao Wang, Mengdi Li, Junteng Li
Summary: This paper focuses on modeling the water absorption and internal stress behavior of steel/rubber composites. A three-dimensional finite element model is established to accurately simulate water diffusion, and the outcomes show that the early water diffusion conforms to the Fickian model while the weight gain follows the Langmuir model due to the presence of bound water. The internal stress caused by differential swelling between steel and rubber is revealed and quantitatively analyzed, contributing to the understanding of damage initiation in steel/rubber composites.
Article
Nanoscience & Nanotechnology
Atef Hamada, Ali Khosravifard, Mohammed Ali, Sumit Ghosh, Matias Jaskari, Mikko Hietala, Antti Jarvenpaa, Mohamed Newishy
Summary: This study laser-welded plates of low-alloyed ultra-high-strength carbon steel and 316L austenitic stainless steel at two different energy inputs. The microstructural characteristics and mechanical properties of the welded joints were examined and analyzed. The results showed that the dominant phase structures in the fusion zones were martensite with a small fraction of austenite, and the microhardness values varied between different zones.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Multidisciplinary
Zeng Liu, Pietro Lenarda, Jose Reinoso, Marco Paggi
Summary: A comprehensive coupled thermo-chemo-mechanical modeling framework is proposed to study the reaction-diffusion phenomena in photovoltaics. The model accurately predicts the chemical degradation of ethylene-co-vinyl acetate (EVA) layers under hygrothermal conditions, considering the spatial and temporal variation of diffusivity and chemical kinetic rates. The framework successfully reproduces the evolution of reaction-diffusion species and demonstrates its capability to predict spatio-temporal variation under cyclic temperature boundary conditions.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
(2023)
Article
Construction & Building Technology
Shenghui Zeng, Song Gu, Songbo Ren, Ying Gu, Chao Kong, Liqiong Yang
Summary: This study aims to simulate the surface morphology of corroded steel and provide a modeling method with higher accuracy. Six groups of corroded specimens were obtained through accelerated corrosion test and used in stochastic finite element analysis (FEA) to study the mechanical behavior of corroded steel. The pitting parameters of the specimens were investigated and analyzed, and a random pitting model (RPM) was established to replicate the evolution of corroded surfaces with higher accuracy. A rough surface meshing method (RSMM) was proposed to optimize the element quality of the FEA model. The results demonstrate the accuracy and effectiveness of the modeling method in analyzing the mechanical behavior of corroded steel structures.
Article
Computer Science, Interdisciplinary Applications
Chenfeng Zong, Gang Jiang, Dong Shao, Xudong Wang, Wenbin Hu
Summary: This study proposes a new hybrid analytical and numerical approach to analyze energy piles by coupling thermal and mechanical loads. The methodology effectively improves computational efficiency and is validated against experimental data for accuracy and robustness.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Engineering, Civil
Zuo Hao, Chen Yixin, Jia Feng
Summary: This paper proposes a novel wavelet finite element formulation for thermo-mechanical coupling analysis of laminated composite plates. The method is based on B-spline wavelet functions, which improve the convergence, accuracy, and efficiency of the model. Numerical examples demonstrate the accuracy and reliability of the proposed method.
THIN-WALLED STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Saurabh Pawar, Abhishek Kumar Singh, Ki-Seong Park, Shi-Hoon Choi
Summary: In this study, the effect of welding current on the microstructural features and mechanical properties of bakehardened (BH) steels was investigated using experimental characterizations and finite element analysis (FEA) techniques. Resistance spot welding (RSW) experiments were conducted and the microstructure was analyzed using optical microscopy (OM) and electron backscatter diffraction (EBSD). The results showed that the welding current affected the nugget size and the microstructures within the weld zones. The mechanical properties, specifically the fracture mode, were also influenced by the welding current.
MATERIALS CHARACTERIZATION
(2023)
Article
Engineering, Mechanical
Amirali Amirian, Seyed Ebrahim Moussavi Torshizi, Seyed Hossein Dibajian
Summary: This study aims to identify microstructural changes of metal by measuring natural frequency and damping loss factor. Spheroidization was found to increase natural frequencies and damping loss factors by dispersing carbides in the ferritic matrix. Finite element analysis confirmed experimental results, showing that changing microstructures led to considerable changes in stress statistical dispersion.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Fei Yin, Gary J. Cheng, Rong Xu, Kejie Zhao, Qiang Li, Jie Jian, Shan Hu, Shaoheng Sun, Licong An, Qingyou Han
SCRIPTA MATERIALIA
(2018)
Article
Materials Science, Biomaterials
Fei Yin, Rong Xu, Shan Hu, Kejie Zhao, Shiqi Yang, Shihuan Kuang, Qang Li, Qugyou Han
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2018)
Article
Engineering, Manufacturing
Fei Yin, Yanfei Liu, Rong Xu, Kejie Zhao, Austin Partin, Qingyou Han
JOURNAL OF MANUFACTURING PROCESSES
(2018)
Article
Materials Science, Biomaterials
Fei Yin, Rong Xu, Shan Hu, Kejie Zhao, Shiqi Yang, Shihuan Kuang, Qang Li, Qugyou Han
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2018)
Article
Materials Science, Multidisciplinary
Shaoheng Sun, Fei Yin, Yifei Liu, Wei Zhang, Aimin Zhao, Qingyou Han
MATERIALS & DESIGN
(2018)
Article
Materials Science, Multidisciplinary
Rong Xu, Yang Yang, Fei Yin, Pengfei Liu, Peter Cloetens, Yijin Liu, Feng Lin, Kejie Zhao
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2019)
Article
Engineering, Mechanical
Fei Yin, Shan Hu, Rong Xu, Xinghui Han, Dongsheng Qian, Wenting Wei, Lin Hua, Kejie Zhao
INTERNATIONAL JOURNAL OF PLASTICITY
(2020)
Article
Materials Science, Multidisciplinary
Zhaohua Dong, Dongsheng Qian, Fei Yin, Feng Wang
Summary: The addition of rare earth elements and cold rolling process can significantly enhance the impact toughness of high-carbon chromium bearing steels, preventing premature failure of the bearings.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Nanoscience & Nanotechnology
Fei Yin, Shan Hu, Rong Xu, Seng Xiang, Lin Hua, Gary J. Cheng
Summary: The study introduces a novel approach to overcoming the strength-ductility trade-off in Medium Entropy Alloys (MEAs) by fabricating gradient heterogenous nanograined structures. Through investigating the microstructure and mechanical behaviors, it demonstrates the potential to control both strength and ductility in MEAs at multiple length scales.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
