Article
Mathematics, Applied
Alexandre D. C. Amaro, A. Francisca Carvalho Alves, F. M. Andrade Pires
Summary: This study focuses on analyzing various deformation mechanisms that affect the behavior of PC/ABS blends using computational homogenization. By establishing a representative microstructural volume element, defining the constitutive description of the material phases, and modeling the interfaces and matrix damage, accurate predictions can be achieved. The findings have important implications for broader applications beyond PC/ABS blends.
FINITE ELEMENTS IN ANALYSIS AND DESIGN
(2024)
Article
Thermodynamics
Guiru Meng, Yadong Gong, Jingdong Zhang, Lida Zhu, Hualong Xie, Jibin Zhao
Summary: Laser deposition manufacturing is a promising technology for high performance metal parts and has broad applications in aerospace and other fields. A multi-scale modeling approach is used to simulate the microstructure evolution during the process, and the effects of different process parameters are investigated. The simulated results are consistent with experimental observations.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Engineering, Chemical
John P. de Bono, Glenn R. McDowell
Summary: This paper aims to increase the use of the discrete element method (DEM) for investigating clays by highlighting important considerations in implementing particle interactions. The behavior of clays is less understood compared to sands, making attention to repeatable interactions and the influence of platelet geometry crucial when using spheres as the elementary unit in DEM.
Article
Engineering, Multidisciplinary
Mingdong Zhou, Da Geng
Summary: This study presents a concurrent multi-scale and multi-material topology optimization approach for designing cellular structures with cooling channels for efficient thermal shielding and load carrying capabilities. The method considers a coupled thermofluidic and mechanical model with design-dependent thermal convection and employs a multi-material interpolation scheme based on the Porous Anisotropic Material with Penalization. The optimized designs demonstrate better thermomechanical behaviors due to the larger design freedom of the multi-scale composite configuration.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2021)
Article
Engineering, Chemical
Yongli Wu, Qinfu Hou, Zheng Qi, Aibing Yu
Summary: The DEM-PNM approach couples discrete element method and pore network model to simulate particle-fluid flow. Reasonable flow patterns in gas fluidization and lateral gas injection were successfully simulated. However, the accuracy of the method is lower in dilute flow regions and some important factors are not considered.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Engineering, Chemical
Clara Hartmanshenn, Madeline Halota, Prin Chaksmithanont, Carlin Leung, Johannes G. Khinast, Charles D. Papageorgiou, Christopher Mitchell, Justin L. Quon, Benjamin J. Glasser
Summary: The study found that the heating time of particle beds in heated bladed mixers depends on the relationship between the fill level, mixer diameter, and the heating area relative to material amount, as well as bed compression and mixing rate.
Article
Chemistry, Physical
Jakub Hajkowski, Robert Sika, Michal Rogalewicz, Pawel Popielarski, Waldemar Matysiak, Stanislaw Legutko
Summary: The paper discusses the scope and usefulness of predicting crystalline structure of castings using Calcosoft CAFE system, and validates it through experiment-simulation. It emphasizes the importance of reliable material database and a comprehensive approach to modeling structure formation. The study extends the database content, generalized the correlation of simulation results on micro- and macroscale, and determines the impact of individual parameters on structure formation.
Article
Materials Science, Multidisciplinary
Xu Ren, Yuanming Huo, Seyed Reza Elmi Hosseini, Tao He, Zhenrong Yan, Fabio A. O. Fernandes, Antonio B. Pereira, Hongchao Ji, Jie Bai, Zhiyuan Bian, Xiangyang Du
Summary: In this paper, a novel multi-scale modeling approach is proposed to predict and simulate the evolution of microstructure in cross-wedge rolling. The cellular automata model and finite element method are coupled to visually simulate and predict the dynamic recrystallization microstructure. The simulation results on the high-speed railway axle reveal significant differences in microstructure among different regions, indicating that cross-wedge rolling is a typical local forming process.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Geological
John M. Harmon, Dawa Seo, Giuseppe Buscarnera, Jose E. Andrade
Summary: This paper attempts to predict the evolving statistics of inter-particle contact forces during comminution using grain-scale computational modelling. The largest particles provide strength in the loading direction, while small particles play a significant part in providing radial stability.
Article
Materials Science, Characterization & Testing
Jianbin Li, Yueling Chen, Jie Sun, Sheng Zhang, Jingbiao Ye, Ying Jin, Zhengqiu Li, Baoshu Chen
Summary: This study prepared a layered intumescent flame retardant (IFR)-graphene oxide (GO) and used it to prepare multi-scale polybutylene terephthalate (PBT) composites with the addition of glass fiber (GF), boron nitride (BN), and nano SiO2 flame retardant synergists of different shapes and sizes. The results showed that the SiO2-containing composites exhibited excellent flame resistance, achieving a flame retardant grade of V-0 and a limiting oxygen index (LOI) of 32%. The IFR-GO, PBT, and SiO2 formed a multi-scale network structure and interacted via hydrogen bonding, catalyzing in situ charring.
Article
Construction & Building Technology
Chong Wang, Mingyi Zhang, Qicai Wang, Jinpeng Dai, Tao Luo, Wansheng Pei, Andrey Melnikov, Ze Zhang
Summary: This study found that 2% nano-silica significantly improves concrete performance by enhancing compressive strength and maximizing compactness, while 5% nano-silica, although improving the interface transition zone structure, decreases the compressive strength of concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
K. Sithole, C. L. Taylor, J. P. Rouse, C. J. Hyde
Summary: The study aims to determine the capability of the small punch test in measuring the mechanical properties of CoNiCrAlY, a two-phase bond-coat material in thermal barrier coatings. It utilizes a multi-scale modeling approach, developing 2-dimensional representative volume elements and finite element models for the small punch test. The obtained Young's moduli and Poisson's ratios from the representative volume elements are compared with analytical homogenization methods. The results suggest that the small punch test is influenced more by material yield properties rather than variations in elastic behavior.
MATERIALS & DESIGN
(2023)
Article
Mechanics
Jide Oyebanji, Changze Sun, Mohamed Nasr Saleh, Kapil Krishnan, Zhongwei Guan
Summary: In this paper, a plug-in called FibrePlug, which is developed within the ABAQUSTM Simple GUI (RSG) and Fox GUI development environments, is introduced. Unlike traditional meso-scale modeling, FibrePlug provides an advanced user-friendly environment for modeling fibers at both micro- and meso-scales simultaneously.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Characterization & Testing
P. Gahlen, S. Froebel, A. Karbach, D. Gabriel, M. Stommel
Summary: Polyisocyanurate (PIR) foams were examined for their local chemical composition using ATR-IR spectroscopy, with a focus on the PIR: Amide III intensity ratio as a parameter. Mechanical properties of the foam base material were analyzed at defined positions using AFM and Nanoindentation, with higher PIR: Amide III intensity ratio generally resulting in higher Young's modulus. The study also revealed the development of a new embedding method for nanoindentation, achieving more realistic and reproducible results compared to existing methods.
Article
Materials Science, Multidisciplinary
Sajedeh Khosravani, Mohammad Homayoune Sadr, Erasmo Carrera, Alfonso Pagani
Summary: In this study, randomly three-dimensional graphene foam (RGF) was synthesized and used to prepare RGF/epoxy composite material. Tensile testing showed that the drying percentage of RGF had a significant effect on the mechanical properties of the composite. Furthermore, multi-scale numerical methods were employed to obtain the mechanical properties of the RGF/epoxy composite material.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Composites
D. Iliescu, D. Gehin, I. Iordanoff, F. Girot, M. E. Gutierrez
COMPOSITES SCIENCE AND TECHNOLOGY
(2010)
Article
Materials Science, Multidisciplinary
I. Terreros, I. Iordanoff, J. L. Charles
COMPUTATIONAL MATERIALS SCIENCE
(2013)
Article
Engineering, Multidisciplinary
Damien Andre, Ivan Iordanoff, Jean-luc Charles, Jerome Neauport
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2012)
Article
Engineering, Multidisciplinary
Mohamed Jebahi, Jean-luc Charles, Frederic Dau, Lounes Illoul, Ivan Iordanoff
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2013)
Article
Engineering, Multidisciplinary
Damien Andre, Mohamed Jebahi, Ivan Iordanoff, Jean-luc Charles, Jerome Neauport
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2013)
Article
Materials Science, Ceramics
Mohamed Jebahi, Damien Andre, Frederic Dau, Jean-luc Charles, Ivan Iordanoff
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2013)
Article
Engineering, Mechanical
John Tichy, Yves Berthier, Ivan Iordanoff
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2008)
Article
Engineering, Mechanical
Mickael Kargulewicz, Ivan Iordanoff, Victor Marrero, John Tichy
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2012)
Article
Polymer Science
P. Viot, I. Iordanoff, D. Bernard
POLYMER SCIENCE SERIES A
(2008)
Article
Engineering, Mechanical
I. Lordanoff, K. Elkholy, M. M. Khonsari
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2008)
Article
Engineering, Mechanical
Ivan Iordanoff, A. Battentier, J. Neauport, J. L. Charles
TRIBOLOGY INTERNATIONAL
(2008)
Article
Engineering, Manufacturing
I. Terreros, I. Iordanoff, J. L. Charles, D. Coupard, S. Tcherniaieff
INTERNATIONAL JOURNAL OF MATERIAL FORMING
(2009)
Proceedings Paper
Materials Science, Multidisciplinary
Antoine Goupil, Ivan Iordanoff, Jean-Luc Charles, Andre Rinchet
CURRENT STATE-OF-THE-ART ON MATERIAL FORMING: NUMERICAL AND EXPERIMENTAL APPROACHES AT DIFFERENT LENGTH-SCALES, PTS 1-3
(2013)
Proceedings Paper
Engineering, Biomedical
Damien Andre, Ivan Iordanoff, Jean-luc Charles, Jerome Neauport
PROCEEDINGS OF THE ASME 11TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS DESIGN AND ANALYSIS, VOL 4
(2012)
Article
Mechanics
Rawan Aqel, Patrick Severson, Rani Elhajjar
Summary: A novel core splice joint configuration for composite sandwich structures is studied and proposed to improve the strength and toughness. Experimental and numerical efforts show that this configuration can significantly increase the ultimate strength by 13% to 51% and the toughness by 2% to 35%.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xianheng Wang, Cong Chen, Jinsong Zhang, Xinming Qiu
Summary: In this paper, a new form-finding method based on spatial elastica model (FMSE) is proposed for elastic gridshells. The method integrates the deformations of elastic rods into the overall deformation of the gridshell, and solves a set of transcendental equations using the quasi-Newton method to ensure the deformation satisfies the given boundary conditions. The method is validated through experiments and expected to have potential applications in the investigations of elastic gridshells.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Hao Huang, Zitong Guo, Zhongde Shan, Zheng Sun, Jianhua Liu, Dong Wang, Wang Wang, Jiale Liu, Chenchen Tan
Summary: The conventional evaluation of 3D braided composites' mechanical properties through numerical and experimental methodologies hinders material application due to the expenses, time constraints, and laborious efforts involved. This study establishes a multi-scale finite element model and a surrogate model for predicting the elastic properties of 3D4D rotary braided composites with voids. By optimizing a neural network model, the results are validated and provide valuable insights into the microstructure and properties of these composites.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xinyu Li, Hao Zhang, Haiyang Yang, Junrong Luo, Zhongmin Xiao, Hongshuai Lei
Summary: Due to their excellent mechanical properties and design flexibility, fluted-core composite sandwich structures have gained significant attention in aerospace and rail transit applications. This study investigated the free-vibration characteristics and optimized design of composite fluted-core sandwich cylinders through theoretical models and experimental tests.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Chao Li, Chunzheng Duan, Xiaodong Tian, Chao Wang
Summary: A mechanistic model considering the bottom edge cutting effect and the anisotropic characteristics of the material is proposed in this paper to accurately predict cutting forces. The model was validated through a series of milling experiments and can be used to predict the cutting force of various parts of the cutter and any feed direction.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Camila Sanches Schimidt, Leopoldo Pisanelli Rodrigues de Oliveira, Carlos De Marqui Jr
Summary: This work investigates the vibro-acoustic performance of graded piezoelectric metamaterial plates. The study shows that piezoelectric metamaterial plates with reconfigurable properties can provide enhanced vibration and sound power attenuation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jun Ke, Li-jie Liu, Zhen-yu Wu, Zhong-ping Le, Luo Bao, Dong-wei Luo
Summary: Compared with other green natural fibers, ramie has higher mechanical properties and lower cost. In this study, ramie and glass fiber are made into composite circular tubes. The results show that the hybrid circular tube with ramie and glass fiber has improved torsional mechanical properties and reduced weight and cost. The failure mechanisms are affected by the loading direction and the content of each fiber.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Natalia Pingaro, Gabriele Milani
Summary: This paper proposes an enhanced analytical model for predicting the behavior of FRCM samples tested under standard tensile tests. The model takes into account the interaction between fibers and matrix through the interface, and assumes different material properties at different phases. By solving a second order linear differential equation, an analytical solution can be obtained. The model is validated with experimental data and shows good predictability.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jialiang Fan, Anastasios P. Vassilopoulos, Veronique Michaud
Summary: This article investigates the effects of voids, joint geometry, and test conditions on the fracture performance of thick adhesive Double Cantilever Beam (DCB) joints. It concludes that grooved DCB joints with low void content tested at low displacement rates showed stable crack propagation without significant crack path deviation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Auwalu I. Mohammed, Kaarthikeyan Raghupathy, Osvaldo De Victoria Garcia Baltazar, Lawson Onokpasah, Roger Carvalho, Anders Mogensen, Farzaneh Hassani, James Njuguna
Summary: This study investigates the performance of composite pressure vessels under damaged and undamaged conditions, providing insights into their reliability and residual strength capabilities. The results demonstrate that the damage profile and its effect on compressive strength are similar between damaged and non-damaged cylinders. When subjected to quasi-static compression, the polyethylene liner absorbs enough elastic strain energy to recover without plastic deformation. Additionally, quasi-static compression has little to no influence on the axial strength of the cylinders. The damage characterization reveals fiber breakage, delamination, local buckling, and brooming failure. This study has direct implications for the safety design tolerances, manufacturing strategies, and operational failure conditions of composite overwrapped pressure vessels (COPVs).
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Muhammad Irfan Shirazi, Samir Khatir, Djilali Boutchicha, Magd Abdel Wahab
Summary: Structural health monitoring is important to ensure the safety of components and structures. This study proposes a method using finite element models and 1D-CNN network to extract and classify vibration responses for crack detection. The results show that the proposed approach is effective in real-time damage detection.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Maryam Mirsalehi, Kiarash Kianpour, Sharif Shahbeyk, Mohammad Bakhshi
Summary: This study comprehensively investigates the one-way response of 3D-woven sandwich panels (3DWSPs) and their interfering parameters, providing interpretation of elastic and failure results, failure maps, and reliable theoretical models for linear elastic response and observed failure mechanisms.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Yiming Zhao, Zhonggang Wang, Zhigang Yang, Bin Qin
Summary: The paper proposes a Ritz and statistical energy analysis (Ritz SEA) hybrid method for calculating rectangular plate acoustic vibration coupling in the mid-frequency range. This method combines the fast convergence and ability to handle arbitrary boundary conditions of the Ritz method with the power flow equation of the statistical energy analysis method. The results show that this approach effectively filters out random fluctuations in mid-frequency domains while demonstrating exceptional stability and precision.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Joao Henrique Fonseca, Woojung Jang, Dosuck Han, Naksoo Kim, Hyungyil Lee
Summary: This study addresses the enhancement of an injection-molded fiber-reinforced plastic / metal hybrid automotive structure and its plastic injection molding process through the integration of the finite element method, artificial intelligence, and evolutionary search methods. Experimental validation of finite element models, the generation of a database through orthogonal array and Latin hypercube methods, and the training of artificial neural networks are conducted. The genetic optimization algorithm is then applied to identify optimal process parameters. The results show significant reduction in product warpage and manufacturing time while maintaining structural strength, contributing to the advancement of composite automotive structures with superior quality.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Alessandro Vescovini, Carina Xiaochen Li, Javier Paz Mendez, Bo Cheng Jin, Andrea Manes, Chiara Bisagni
Summary: This paper presents a study on six single-stringer specimens manufactured using the card-sliding technique with non-crimp fabrics and adopting a Double-Double (DD) stacking sequence. The specimens were tested under compression loading conditions to investigate post-buckling and failure in aerospace structures. Experimental results and numerical simulations were compared to analyze the behavior and failure modes of the specimens. The study found promising evidence of a viable solution to optimize aeronautical structures and enhance resistance to skin-stringer separation, particularly with the use of tapered flanges.
COMPOSITE STRUCTURES
(2024)