Article
Soil Science
S. B. Mousavi, D. Uteau, S. Peth
Summary: Prevention of soil compaction requires examining soil mechanical stability. By introducing unloading steps, it is possible to simultaneously determine the average stress and mechanical elasticity of soil. The results showed significant differences in the determined pre-compression stress values under different loading paths. Introducing an unloading step can lead to more accurate determination of the mechanical elasticity of soil.
SOIL & TILLAGE RESEARCH
(2022)
Article
Engineering, Industrial
Zhidong Chang, Jun Chen
Summary: By considering the effects of bending, shearing, and cyclic loading, new analytical formulas of stress triaxiality were derived, and a novel analytical prediction model of fracture strain was proposed by combining with a generalized ductile fracture criterion. Experimental and finite element analysis validated the accuracy of the models, and the effects of deformation mechanisms on fracture strain were evaluated in details.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Mechanics
Julian Thamboo, Tatheer Zahra, Mohammad Asad, Lakshitha Silva, Jeewamali Gimhani
Summary: Confinement of masonry columns using fibre reinforced polymer (FRP) composites can enhance their axial capacity and ductility. This paper presents an analytical stress-strain model for FRP confined masonry columns subjected to cyclic compression based on experimental data. The results showed that discontinuous FRP strengthening columns greatly improved strength and ductility.
COMPOSITE STRUCTURES
(2022)
Article
Polymer Science
Bin Yuan, Fanlin Zeng, Jianzheng Cui, Youshan Wang
Summary: This study presents a parametric modeling method based on molecular simulation, which allows for direct computation of the structural parameters in molecular models without the need for fitting stress-strain data. The authors apply this method to study the constitutive relations of filled rubber and calculate amplification factors related to stress and strain distributions.
Article
Biology
Christian Michael, Francesco Pancaldi, Samuel Britton, Oleg V. Kim, Alina D. Peshkova, Khoi Vo, Zhiliang Xu, Rustem I. Litvinov, John W. Weisel, Mark Alber
Summary: Little is known about the mechanisms underlying blood clot contraction, which plays a critical role in clot remodeling. Impairment of this process can lead to life-threatening bleeding and thrombotic conditions. A study on COVID-19 patients revealed hindered blood clot contraction, and a computational model was developed to understand the biomechanical mechanisms involved.
COMMUNICATIONS BIOLOGY
(2023)
Review
Construction & Building Technology
Yuexin Jiang, Sumei Zhang, Bing Zhang, Guofeng Xue, Wei Wang
Summary: This paper investigates the dynamic compressive behavior of FRP-confined concrete (FCC), finding that the maximum strength and maximum axial strain of FCC are sensitive to the strain rate effect. The axial stress-strain curves are divided into three branches, and the different strain rate effects cause changes in the curve shape. Furthermore, it is proposed that the dynamic confinement ratio of the concrete should be larger than 0.045 to ensure sufficient confinement. In addition, an analytical model is developed to incorporate the strain rate effects of concrete, inertial confinement, and FRP into the stress-strain model of static compression.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Xingyu Dai, Xin Yang, Xinlong Wu, Chunming Tu, Guoyou Liu
Summary: This paper proposes an analytical model for analyzing plastic strain of bond wires in IGBT modules and calibrates it through experimental measurements and finite element analysis. The actual thermo-mechanical stress is revealed, and the relationship between the bonding angle and plastic strain at the heel of bond wires is established.
MICROELECTRONICS RELIABILITY
(2021)
Article
Green & Sustainable Science & Technology
Ali Akbar, Sukkee Um
Summary: This study investigates the effect of external clamping pressure on the morphology, interconnectivity, and electrochemical catalyst utilization of catalyst layers (CLs) in proton exchange membrane fuel cells (PEMFCs). A compression model is developed and validated, and the impact of compression on various parameters critical for CL transport properties and performance is analyzed. The results show that the interconnectivities of different phases in CLs are strongly influenced by the applied pressure. Furthermore, the electrochemical performance of the CLs is compared to enhance overall fuel cell performance. Insights from this study can contribute to a better understanding of fuel cell performance.
Article
Nanoscience & Nanotechnology
Yingwu Zhou, Li Zhuang, Zhiheng Hu, Biao Hu, Xiaoxu Huang, Shan Li, Menghuan Guo, Zhongfeng Zhu
Summary: This study solves the problem of using fiber-reinforced polymer (FRP) bars as reinforcement in concrete members by developing a compression yield (CY) structural system. The ductility of the concrete beam in this system comes from the compressive side, rather than the tensile side. Experimental and finite element modeling results are used to propose parametric equations and constitutive models to predict the mechanical behavior of the CY material.
REVIEWS ON ADVANCED MATERIALS SCIENCE
(2022)
Article
Mechanics
Bulat N. Galimzyanov, Anatolii Mokshin
Summary: The porous titanium nickelide is characterized by unique physical and mechanical properties, and the degree of porosity affects its mechanical behavior under tension, compression, and shear. Different types of pore structures influence the elastic characteristics and resistance to tensile and shear, providing insights for developing and improving amorphous metal foams.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2021)
Article
Engineering, Civil
Mujahid Ali, Sheraz Abbas, Afonso Rangel Garcez de Azevedo, Markssuel Teixeira Marvila, Muhammad Imran Khan, Waqas Rafiq
Summary: This article investigates the mechanical and durability properties of confined low-strength concrete using quantitative and analytical approaches. It analyzes the behavior of low strength concrete under axial compression and explores the impact of transverse reinforcement on the concrete's strength and ductility. The experimental results show that the spacing between the transverse steel significantly affects the concrete stresses and that an increase in volumetric transverse reinforcement improves the mechanical properties and relative ductility. The study also compares different analytical models and finds that Mander's model performs best prior to peak strength, while Kent and Park's models are more accurate for post-peak behavior.
Article
Materials Science, Multidisciplinary
Wencong Zhang, Jinqi Pan, Songhui Wang, Jianlei Yang
Summary: This study investigates the microstructure evolution of the extruded Mg-6.03Zn-0.55Zr alloy during hot plane strain compression experiments. It is found that basal slip is the main deformation mechanism, while higher temperatures lead to the activation of non-basal slip, weakening the basal texture.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Construction & Building Technology
Wei Chang, Wenzhong Zheng, Meijing Hao
Summary: This study presented an experimental investigation on the axial stress-strain behavior of confined ultra-high performance concrete (UHPC). A theoretical model considering the shear-compression mechanism was proposed for the axial stress-strain curves of confined UHPC. The proposed analytical models had high accuracy and stability in predicting the compression behavior indicators of confined UHPC.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Zhao-Bing Xiang, Jun-Hui Nie, Shao-Hua Wei, Tao Zuo, Jian-Zhong Fan
Summary: An analytical model was developed to predict the stress-strain behavior of particle-reinforced metal matrix composites, taking into account factors such as particle cracking and matrix tearing. The model accurately predicted the stress-strain curves and yield strength of the composites, which were validated by experimental data.
Article
Metallurgy & Metallurgical Engineering
Zi-Long Zhou, Pei-Yu Wang, Xin Cai, Yi-Han Zhao, Jian-Min Liu, Zhao-Xi Yan, Long-Feng Chen
Summary: In this study, we proposed a new model based on axial plastic strain to estimate the stress thresholds of crack closure and crack damage. By comparing the stress thresholds calculated by our proposed method with existing methods, we validated the accuracy of our method. The results show that the proposed method accurately identifies the stress thresholds of crack closure and crack damage, reducing the dependence on elastic parameter.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Environmental Sciences
Simon Parkinson, Volker Krey, Daniel Huppmann, Taher Kahil, David McCollum, Oliver Fricko, Edward Byers, Matthew J. Gidden, Beatriz Mayor, Zarrar Khan, Catherine Raptis, Narasimha D. Rao, Nils Johnson, Yoshihide Wada, Ned Djilali, Keywan Riahi
ENVIRONMENTAL RESEARCH LETTERS
(2019)
Editorial Material
Chemistry, Physical
Sandro Nizetic, Frano Barbir, Nedjib Djilali
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Ali Malekian, Sina Salari, Juergen Stumper, Ned Djilali, Majid Bahrami
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Majid Soleimani Nia, Peter Oshkai, Ned Djilali
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Review
Green & Sustainable Science & Technology
Sandro Nizetic, Nedjib Djilali, Agis Papadopoulos, Joel J. P. C. Rodrigues
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Energy & Fuels
Heng Zhang, Liusheng Xiao, Po-Ya Abel Chuang, Ned Djilali, Pang-Chieh Sui
Article
Chemistry, Physical
Min Li, Kangjun Duan, Ned Djilali, Pang-Chieh Sui
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Sina Salari, Mickey Tam, Claire McCague, Juergen Stumper, Majid Bahrami
JOURNAL OF POWER SOURCES
(2020)
Article
Mechanics
Li Jiang, Mohammad Rahnama, Biao Zhang, Xun Zhu, Pang-Chieh Sui, Ding-Ding Ye, Ned Djilali
Article
Green & Sustainable Science & Technology
Adriano Vinca, Simon Parkinson, Keywan Riahi, Edward Byers, Afreen Siddiqi, Abubakr Muhammad, Ansir Ilyas, Nithiyanandam Yogeswaran, Barbara Willaarts, Piotr Magnuszewski, Muhammad Awais, Andrew Rowe, Ned Djilali
Summary: The study highlights the water stress and energy insecurity in the Indus river basin in South Asia, emphasizing the importance of transboundary cooperation for more cost-effective and environmentally friendly development. By collaborating on water resources, electricity, and food production, the countries in the region could lower costs, reduce soil pollution, and mitigate water scarcity issues.
NATURE SUSTAINABILITY
(2021)
Article
Energy & Fuels
Shuaibin Wan, Xiongwei Liang, Haoran Jiang, Jing Sun, Ned Djilali, Tianshou Zhao
Summary: This study develops a novel framework that combines machine learning and genetic algorithm to optimize electrode structures for RFBs. By generating a custom dataset and utilizing machine learning models and genetic algorithm, hundreds of promising electrode structures with superior performance were successfully screened.
Review
Environmental Sciences
Adriano Vinca, Keywan Riahi, Andrew M. Rowe, Ned Djilali
Summary: Approaches that integrate feedback between climate, land, energy and water have advanced significantly, but many nexus analyses overlook important inter-linkages. This review focuses on model accessibility, usability, and further model development opportunities, exploring where and why some nexus interactions are most relevant at different scales.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Engineering, Mechanical
Orhan Atabay, Ned Djilali, Curran Crawford
Summary: This study examines the long-term energy use implications of electrification, automation, and sharing of road vehicles in British Columbia, Canada. It analyzes energy use from 1990 to 2016 and presents hypothetical scenarios incorporating various effects of vehicle electrification, sharing, and automation. The study compares transportation energy use projections to those of the Canadian Energy Regulator (CER) and finds higher energy savings in the scenarios that consider vehicle electrification. Combining vehicle electrification and automation leads to decreased energy use in all scenarios, surpassing the CER's projections. The inclusion of other technology disruptions and the effects of pandemics further reduce transportation demand and provide additional energy savings.
Article
Chemistry, Physical
Hao-Nan Wang, Xun Zhu, Qiang Liao, Rong Chen, Dingding Ye, P. C. Sui, Ned Djilali
JOURNAL OF POWER SOURCES
(2020)
Review
Electrochemistry
Pang-Chieh Sui, Xun Zhu, Ned Djilali
ELECTROCHEMICAL ENERGY REVIEWS
(2019)
