Review
Thermodynamics
Yixiang Liao, Dirk Lucas
Summary: The study reviews the research progress and model development of flashing flows, focusing on the recent advancements in computational fluid dynamics simulations. Recommendations are made for further research in handling gas-liquid interface shape effects and two-phase turbulence.
APPLIED THERMAL ENGINEERING
(2021)
Article
Materials Science, Composites
Sina AhmadvashAghbash, Christian Breite, Mahoor Mehdikhani, Yentl Swolfs
Summary: Longitudinal fibre-matrix debonding is influenced by various factors such as interfacial strength, fracture toughness, thermal residual stresses, friction, and matrix plasticity. The proposed finite element model accounts for these factors and allows for debond propagation based on assigned interfacial properties. Parametric studies demonstrate that higher values for interfacial friction coefficient, thermal residual stress, and interfacial fracture toughness restrict debond propagation, while matrix plasticity facilitates it.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Review
Green & Sustainable Science & Technology
C. M. Niebuhr, S. Schmidt, M. van Dijk, L. Smith, V. S. Neary
Summary: Computational fluid dynamics is used to predict hydrokinetic turbine performance and wake modeling. The limitations of most commonly used Reynolds-averaged Navier-Stokes (RANS) models are not well understood when applied to complex turbine and wake dynamics. This paper focuses on the prediction of wake generation, dissipation, and flow recovery, comparing numerical investigations with experimental measurements. The shortcomings of current models are discussed and appropriate modeling techniques are identified. The use of a virtual disk model with blade element momentum theory and Reynolds stress closure models improves wake behavior prediction.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Engineering, Chemical
Martina Pressacco, Jari J. J. Kangas, Timo Saksala
Summary: This study presents a numerical analysis on the effects of microwave heating on the mechanical properties of hard rock. The results show that the compressive and tensile strength of rock can be considerably reduced by the microwave irradiation pretreatment.
MINERALS ENGINEERING
(2023)
Article
Mathematics, Interdisciplinary Applications
Paras Kumar, Paul Steinmann, Julia Mergheim
Summary: This study investigates the reinforcement mechanism of nano-composite materials and finds that the approach based on continuously graded interphases is more suitable for modeling such materials with different filler-matrix stiffness combinations.
COMPUTATIONAL MECHANICS
(2021)
Article
Computer Science, Interdisciplinary Applications
Amedeo Gregori, Chiara Castoro, Micaela Mercuri, Michele Angiolilli
Summary: Finite element models were analyzed to investigate the effects of rubber particle replacement on concrete compressive strength and elastic modulus, with proposed analytical relationships and sensitivity analysis showing that rubbercrete properties do not solely depend on the elastic modulus of rubber.
COMPUTERS & STRUCTURES
(2021)
Article
Energy & Fuels
Changlei Xia, Kathirvel Brindhadevi, Ashraf Elfasakhany, Mishal Alsehli, Siriporn Tola
Summary: This research conducted a detailed investigation into the premixing of biodiesel to reduce greenhouse gas emissions, particularly NOx. Numerical modeling was used to analyze the impact of biofuel premixing on performance, combustion, and emission characteristics. The results showed that premixing biodiesel can reduce smoke emissions in the combustion chamber under certain conditions, but may increase NOx emissions.
Article
Construction & Building Technology
Satheeskumar Navaratnam, Deighton Widdowfield Small, Marco Corradi, Perampalam Gatheeshgar, Keerthan Poologanathan, Craig Higgins
Summary: This study aims to evaluate the performance of timber beams reinforced with GFRP pultruded beams under flexure, and develop a corresponding finite element model. The experimental results demonstrate that grain deviation significantly reduces the strength of unreinforced timber beams, but has minimal effect on GFRP-reinforced timber beams.
Article
Engineering, Marine
Eric Gubesch, Nagi Abdussamie, Irene Penesis, Christopher Chin
Summary: This paper presents the results of an investigation into the generation of realistic model scale extreme waves for survivability testing of offshore structures. The objective was to accurately model maximum wave height (Hmax) and wave spectrum of a realistic focused wave group embedded in an irregular sea state. The methodologies presented in this paper are appropriate for modelling realistic extreme sea states for model scale survivability testing of offshore structures.
Article
Engineering, Civil
M. Majewski, M. Wichrowski, P. Holobut, K. Kowalczyk-Gajewska
Summary: The aim of this study is to analyze the joint effect of reinforcement shape and packing on the effective behavior of particulate composites. The proposed semi-analytical modeling method combines the Replacement Mori-Tanaka scheme and the analytical morphologically representative pattern approach to account for particle packing. Five shapes of inhomogeneities are selected for the analysis, and the semi-analytical estimates are compared with numerical simulations and classical mean-field models.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Engineering, Civil
Krzysztof Woloszyk, Yordan Garbatov
Summary: An advanced method for predicting the residual compressive strength of corroded stiffened plates is developed using the non-linear finite element method, taking into account the non-uniform thickness loss and the change in mechanical properties due to corrosion. The study investigates the impact of different degrees of corrosion on structural strength through deterministic analysis and random field modelling.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Geological
Shun Wang, Wei Wu, Deshan Cui
Summary: The mechanical behavior of clastic soil was described by numerical simulations considering both the soil matrix and breccia. The simulations indicated that breccia content, gradation, and overconsolidation ratio significantly influenced the strength, deformation, and failure pattern of clastic soil.
Article
Computer Science, Interdisciplinary Applications
Bruno Oliveira, Francesco Ballio, Rodrigo Maia
Summary: This study aimed to assess the potential application of sensitivity analysis in stochastic input based modeling of fluvial morphodynamics. The results showed that the sensitivities were highly case-specific and had little potential for generalization, indicating limited scientific interest in sensitivity analysis in the context of fluvial morphodynamics.
ENVIRONMENTAL MODELLING & SOFTWARE
(2021)
Article
Engineering, Multidisciplinary
Emanuele Gasparotti, Emanuele Vignali, Massimiliano Mariani, Sergio Berti, Simona Celi
Summary: This study focuses on the analytical formulation and numerical implementation of the Cardioband (R) system, a percutaneous technique for correcting mitral valve regurgitation. The developed tool combines clinical image processing and finite element method to simulate the entire procedure. The results confirm the reliability of the proposed approach and show the impact of the implanted device on cardiac structures.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Engineering, Marine
Ying Lai, Chuan Chen, Bin Zhu, Jia-lin Dai, De-qiong Kong
Summary: This paper presents the development of a hydro-mechanical coupling model in ABAQUS to simulate the seepage and separation on the interface between clayey seabed and suction caissons. The model is validated and used to study the uplift behavior of suction caissons under different drainage conditions. The results show that the model successfully captures the transition from localized to global failure, as well as the development of negative pore water pressure and the separation behavior.
Article
Mechanics
Subrato Sarkar, I. V. Singh, B. K. Mishra
Summary: The paper introduces a computer implementation of the LGDM in the COMSOL software and highlights the advantages of using COMSOL for this purpose. The intuitive and informative user interface, along with customization options and equation-based modeling feature, make COMSOL a preferred choice for implementing new models and solving complex large-scale problems efficiently.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Materials Science, Multidisciplinary
Neha Duhan, R. U. Patil, B. K. Mishra, I. V. Singh, Y. E. Pak
Summary: In this work, the nonlinear thermo-elastic analysis of edge dislocations with internal heat generation in semiconductor materials is performed using the extended finite element method (XFEM). The study examines the nonlinearity caused by temperature dependent electrical conductivity, thermal conductivity, and thermal expansion coefficient. The presence of an electric field in the direction of the dislocation line leads to internal heat generation due to electrical resistivity. The results show that the Peach-Koehler force values are different depending on the amount of heat generation, and can be used to predict the velocity of the dislocations.
MECHANICS OF MATERIALS
(2022)
Article
Mathematics, Applied
Sandipan Baruah, Subrato Sarkar, I. Singh, B. K. Mishra
Summary: This work presents a computational framework based on finite element analysis, machine learning, and genetic algorithm to accurately estimate and minimize residual stresses in welding. By utilizing an optimization process, the framework can obtain an accurate phase-change model and a set of welding operating conditions that reduce residual stresses.
FINITE ELEMENTS IN ANALYSIS AND DESIGN
(2022)
Article
Engineering, Mechanical
Deepak Sharma, I. V. Singh, Jalaj Kumar
Summary: This work investigates the influence of microstructure on the low cycle fatigue (LCF) life of two-phase titanium alloys. It proposes a new strain-based damage evolution law and statistically analyzes the effect of various microstructural parameters on the LCF life.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Mechanics
J. Jena, I. V. Singh, V. Gaur
Summary: In this paper, an XFEM-based framework is proposed to model the semipermeable crack in magneto-electro-elastic material. The effects of various factors on the normalized magnetic induction intensity factor are studied through numerical simulations.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Mechanics
Alok Negi, I. V. Singh, Imad Barsoum
Summary: This article presents a nonlocal gradient-enhanced damage model that predicts transgranular and intergranular cracks in polycrystalline materials. The model considers the anisotropic linear elastic domains with random spatial orientation and cubic symmetries of the grains. Transgranular micro-cracks are described using a bulk damage variable, while intergranular fracture is incorporated through an interface damage variable and a cohesive law. The proposed computational framework utilizes an operator-split methodology for a robust and straightforward implementation.
ENGINEERING FRACTURE MECHANICS
(2023)
Article
Computer Science, Interdisciplinary Applications
Changkye Lee, Indra Vir Singh, Sundararajan Natarajan
Summary: In this paper, the cell-based smoothed finite-element method (CS-FEM) is proposed for solving boundary value problems of gradient elasticity in two and three dimensions. The method eliminates the need for explicit form of the shape functions and iso-parametric mapping. The results show that the proposed framework is accurate and robust.
ENGINEERING WITH COMPUTERS
(2023)
Article
Surgery
Madhubari Vathulya, Subrato Sarkar, Vaishali Verma, Indra Vir Singh, Pankaj Kandwal
Summary: Recurrent ear lobule deformity is a chronic condition that can be addressed through traditional lobuloplasty techniques. This study used finite element analysis to compare the tensile strength of free and attached ear lobules. Results showed that the yield max and corresponding load were lower in the free variety. While this experiment highlights the potential impact of surgical structural changes on the tensile strength of ear lobules, further clinical trials are needed to confirm these findings.
PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN
(2023)
Article
Mechanics
J. Jena, I. V. Singh, V. Gaur
Summary: In this study, the extended finite element method (XFEM) is used to model semipermeable cracks in piezoelectric materials subjected to Maxwell stresses induced by an electric field. The crack tip is enriched with six-fold enrichment functions to accurately represent the semipermeable crack with Maxwell stress. The electro-mechanical interaction integral is modified and implemented for different crack configurations to calculate the stress intensity factor (SIF). The accuracy of the XFEM-based semipermeable crack model is demonstrated through validation with analytical solutions and the effects of various factors on the normalized SIF are investigated.
ENGINEERING FRACTURE MECHANICS
(2023)
Article
Engineering, Mechanical
Deepak Sharma, I. V. Singh, Jalaj Kumar
Summary: A computational framework is proposed to predict the microstructure sensitive mechanical behavior of polycrystalline materials, including fatigue crack initiation life and anisotropic deformation behavior. The framework generates 3D microstructural RVEs using Laguerre tessellation technique in Abaqus software. This methodology effectively models the complex geometry of grains and interfaces in 3D polycrystalline microstructures which is otherwise challenging. The predictions of fatigue crack initiation lives and anisotropic deformation behavior have shown good agreement with experimental data.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Shyam Kishor Sharma, Subrato Sarkar, Indra Vir Singh, B. K. Mishra, Rishi K. Sharma
Summary: A numerical framework is developed to estimate the leak-tightness of tube to end-fitting rolled joint under thermal creep. The framework includes a finite element model to determine contact pressure and residual stresses, as well as the effects of thermal creep during the service life. The study examines different leak geometries and finds that an elliptical leak with a major axis in the radial direction increases leakage rate the most.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2023)
Article
Computer Science, Interdisciplinary Applications
Shivam Saini, Nagaraj Manju Moger, Manish Kumar, Subrato Sarkar, Samarth Mittal, Syed Ifthekar, Kaustubh Ahuja, Indra Vir Singh, Pankaj Kandwal
Summary: Interbody fusions have become popular for achieving good fusion rates, and finite element studies have validated their clinical implications. The study found that interbody procedures significantly reduced the range of motion in extension and torsion, and bilateral screw fixation was biomechanically superior except in torsion.
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
(2023)
Article
Engineering, Multidisciplinary
Neha Duhan, B. K. Mishra, I. V. Singh
Summary: In this study, the eXtended finite element method (XFEM) is used to analyze the behavior of edge dislocations near a heterostructure interface with nonuniform misfit strain. A new enrichment method is introduced to account for the singular behavior of the electric potential. Nonlinear material properties due to temperature are considered for a thermo-electro-elastic analysis. The results show the effect of nonuniform misfit strain distribution on the dislocations near the interface and propose a new expression for the Peach-Koehler force considering the combined effect of multiple fields.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2023)
Article
Engineering, Mechanical
V. K. Yadav, V. Gaur, I. V. Singh
Summary: The corrosion-fatigue behavior of friction stir welded AA2024-T3 in a 3.5% NaCl solution was investigated. Corrosion-damage analysis revealed that the heat-affected zone in the shoulder-affected region was more susceptible to corrosion attack due to microstructural coarsening. A mechanism was proposed for the microstructural evolution in the shoulder-affected zone. A significant reduction in the fatigue life of the welded component was observed in the 3.5% NaCl solution compared to laboratory air, attributed to pit formation caused by the dissolution of Al-matrix near intermetallic particles.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Civil
Anjali Jha, Neha Duhan, I. V. Singh, B. K. Mishra, Ritu Singh, R. N. Singh
Summary: A numerical model for hydride embrittlement in Zirconium alloy (Zr-2.5Nb) is developed utilizing the extended finite element method (XFEM). The model incorporates all the processes involved in hydride embrittlement and can predict hydrogen concentration and hydride fraction distribution under any externally applied stress field.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2023)
Article
Engineering, Multidisciplinary
Keyu Zhu, Xitao Zheng, Jing Peng, Jiaming Sun, Ruilin Huang, Leilei Yan
Summary: This paper discusses the influence of multiple impacts on the compression strength of honeycomb sandwich structures with composite face sheets. It is found that the size of the impactor affects the turning point of the compression strength. Additionally, high impact energy leads to damage in the bottom face sheet and reduces the overall compression strength.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Danqian Wang, Yanfei Yue, Jueshi Qian
Summary: Magnesium Potassium Phosphate Cement (MKPC) as a binder for steel rebars shows improved corrosion resistance when subjected to carbonation, due to the increase in pH and the formation of a more protective oxide film.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Zhibin Li, Wenyu Wang, Pengcheng Xue, Xingyu Wei, Jian Xiong
Summary: This work proposes a design approach and manufacturing method for carbon fiber reinforced plastic (CFRP) corrugated sandwich truncated cones (CSTC) to improve their anti-debonding ability and ensure reliability. The study establishes theoretical models for CSTCs' stiffness and failure modes, which are verified through experiments and finite element analysis (FEA). The research reveals the effect of geometric parameters on failure modes and performs an optimal design for CSTC structures. The findings have significant implications for the design and application of lightweight CSTCs in constructions, such as launch vehicle adapters.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mingyu Zhang, Lei Chu, Jiahua Chen, Fuxun Qi, Xiaoyan Li, Xinliang Chen, Deng-Guang Yu
Summary: This review summarizes the different structures and construction methods of fibrous membranes with asymmetric wettability. It also reviews the biological applications of these membranes and suggests future challenges.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
E. Mofakhami, L. Gervat, B. Fayolle, G. Miquelard-Garnier, C. Ovalle, L. Laiarinandrasana
Summary: This study investigates the effects of fibre concentration on the mechanical response of welded glass-fibre-reinforced polypropylene (GF-PP). Experimental observations reveal a significant reduction in weld ratio, up to 60%, indicating a decreased strength compared to the bulk material. Increasing fibre content in the welded material results in a decrease in stress at break and strain at the maximum stress. The use of DIC technique and X-ray microtomography further confirms the localized strain amplification in the welded zone due to the significant increase in fibre density.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Emad Pourahmadi, Farjad Shadmehri, Rajamohan Ganesan
Summary: This research compares the mechanical properties of laminates manufactured using automated fiber placement and conventional autoclave curing methods. The results show that laminates manufactured using automated fiber placement have a lower interlaminar shear strength compared to laminates reconsolidated using autoclave curing. A finite element simulation method is proposed to quantitatively analyze these differences.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Johnny Jakobsen, Benny Endelt, Fahimeh Shakibapour
Summary: This study proposes a new bolted/pinned joining method for composite applications, which improves load transfer by introducing a patch-type reinforcement. Experimental results demonstrate significant improvements in both static and fatigue load conditions compared to existing methods. Finite element simulations highlight the advantage of this method, as it creates a more efficient load-transferring mechanism through different stress distributions.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Gisele G. Cintra, Janine D. Vieira, Daniel C. T. Cardoso, Thomas Keller
Summary: This paper proposes a novel approach to assess multi-crack behavior in layered fiber-polymer composites. The generated Compliance and R-curves provide useful insights into understanding the multiple delamination process and allow for separate evaluation of strain energy release rate (SERR) for each crack. The developed cohesive zone model successfully simulates the failure process zone of three parallel cracks, showing good agreement between the numerical model and experimental results.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Renil Thomas Kidangan, Sreedhar Unnikrishnakurup, C. Krishnamurthy, Krishnan Balasubramaniam
Summary: The induction heating process can accurately identify fiber orientation and stacking order, making it a valuable tool for large-area inspection and quality control in manufacturing fiber-reinforced composites.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Sungjun Hwang, Yousoo Han, Douglas J. Gardner
Summary: Bleached Kraft pulp, unbleached Kraft pulp, and old corrugated cardboard pulp are suitable for producing cellulose nanofibril suspensions. Spray drying is a fast, simple, cost-effective, and scalable drying method. Spray-dried cellulose nanofibrils can be used as reinforcing materials in polypropylene matrices. The particle size of cellulose nanofibrils affects the material properties.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mehdi Mahdavi, Abbas Zolfaghari
Summary: This study aims to improve the recovery forces of shape memory polymers (SMPs) through material extrusion additive manufacturing. By using glass fiber (GF) as reinforcement and manufacturing multi-layer composite specimens, it was found that PLA with 6.62% GF exhibited the best recovery force, which was further optimized through annealing heat treatment.
COMPOSITES PART B-ENGINEERING
(2024)
Review
Engineering, Multidisciplinary
Xiang Ao, Antonio Vazquez-Lopez, Davide Mocerino, Carlos Gonzalez, De-Yi Wang
Summary: The vulnerability of natural fibers to heat and fire poses a significant challenge for their substitution of traditional fiber reinforcements in composite materials. Natural fiber/polymer composites (NFCs) are regarded as potential candidates for engineering applications due to their environmental friendliness and low-impact sourcing. Thus, appropriate approaches need to be implemented to enhance the fire safety of NFCs. This review summarizes and discusses the latest understanding of flammability and thermal properties of natural fibers, with a special focus on their interaction with polymer matrix in fire behavior. Additionally, the latest developments in flame-retardant approaches for NFCs are reviewed, covering both flame retardancy and fire structural integrity. Finally, future prospects and perspectives on fire safety of NFCs are proposed, providing insights into further advancements of NFCs.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Cheng Wang, Siqi Huo, Guofeng Ye, Bingtao Wang, Zhenghong Guo, Qi Zhang, Pingan Song, Hao Wang, Zhitian Liu
Summary: The demand for multifunctional, transparent epoxy resin with superior dielectric, mechanical, and fire-safety performances is increasing in modern industries. Researchers have developed an epoxidized, phosphaphenanthrene-containing poly(styrene butadiene styrene) (ESD) for advanced fire-safe epoxy resin, which maintains high transparency and improves UV-blocking property. The addition of 10 wt% ESD results in improved mechanical properties, decreased dielectric constant and loss, and outperformance compared to other fire-safe epoxy resins. This research provides an effective method for developing multifunctional flame-retardant epoxy resin.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Bo Pang, Heping Zheng, Zuquan Jin, Dongshuai Hou, Yunsheng Zhang, Xiaoyun Song, Yanan Sun, Zhiyong Liu, Wei She, Lin Yang, Mengyuan Li
Summary: This study develops an internal superhydrophobic material (ISM) using waste denitrification fly ash, which maintains stable hydrophobicity under harsh conditions of use and does not rely on expensive fluor-based surface modifications. The synthesized ISM has excellent matrix strength, strong waterproof properties, and retains superhydrophobicity even at damaged or friction interfaces.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Meirbek Mussatayev, Qiuji Yi, Mark Fitzgerald, Vincent K. Maes, Paul Wilcox, Robert Hughes
Summary: Real-time monitoring of carbon fibre composites during Automated Fibre Placement (AFP) manufacturing remains a challenge for non-destructive evaluation (NDE) techniques. This study designed a directional eddy-current (EC) probe to evaluate the detectability of out-of-plane wrinkles. Experimental evaluations and finite element modeling were conducted to better understand the relationship between eddy-current density and defect detection. The findings suggest that the probe configuration with an asymmetric driver coil and differential pickup coils shows the best capability for wrinkle detection.
COMPOSITES PART B-ENGINEERING
(2024)
