Article
Engineering, Mechanical
Jie Mei, Jiayi Liu, Mangong Zhang, Wei Huang
Summary: Fiber reinforced composite sandwich structures are widely used in reducing the weight of high-speed aircrafts. This study investigates the ballistic impact resistance of a composite sandwich panel with fiber reinforced X-frame cores through projectile impact tests and numerical simulations. The experimental results indicate that filling foams can increase the structural ballistic limit velocity and energy absorbing amount. The numerical results show that the kinetic energy dissipated by the X-frame core accounts for over 50% of the total.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Mechanics
David Crepin
Summary: Improved designs of revolution inserts are detected through a simple energy approach to increase junction toughness in foam core sandwich panels. The impact of stress singularities was found to be crucial in enhancing toughness.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2022)
Article
Materials Science, Composites
Himan Khaledi, Yasser Rostamiyan, Seyyed Masoud Seyyedi
Summary: This article experimentally and numerically investigates the high-velocity impact resistance of a composite sandwich panel with an M-shaped lattice core reinforced by nano-SiO2. The addition of nano-SiO2 reduces the output velocity of the projectile, and when the projectile collides with the core, its output velocity becomes zero. Finite element analysis confirms the experimental results.
POLYMER COMPOSITES
(2022)
Article
Polymer Science
Ali Farokhi Nejad, Seyed Saeid Rahimian Koloor, Syed Mohd Saiful Azwan Syed Hamzah, Mohd Yazid Yahya
Summary: This study focuses on the mechanical behaviour of through-thickness polymer, pin-reinforced foam core sandwich panels subjected to indentation and low impact loading. Results show that using polymeric pins significantly increases the flexural strength of the panel under impact loading and raises the impact resistance of the pin-reinforced foam core panel. The size of pins has a significant influence on flexural behavior while the sample is under a moderate strain rate.
Article
Mathematics, Applied
M. Karimiasl, A. Alibeigloo
Summary: This study investigates the nonlinear vibration of a sandwich panel composed of functionally graded material (FGM) skins and double U auxetic core under heat conduction. Nonlinear equations are derived using Hamilton's principles and von Karman's nonlinear theory. The linear and nonlinear equations of motion are solved using the differential quadrature method (DQM) and homotopy perturbation technique respectively. The research findings demonstrate the significant effects of core thickness ratio, inclined angle, and thickness to inclined length ratio on the nonlinear frequency response of the sandwich panel. The results of this study can contribute to the development of different aircraft components.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2023)
Article
Engineering, Mechanical
Yefei Zhu, Yuguo Sun
Summary: This paper presents analytical and experimental investigations on the low-velocity impact response of multilayer foam core sandwich panels with composite face sheets, showing that the impact resistance of multilayer sandwich panels is superior to monolayer structures. It also suggests that adjusting the local stiffness close to the top face sheet can improve energy absorption, but at the cost of increased maximum contact force.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Chemistry, Physical
Wenping Zhang, Ruonan Li, Quanzhan Yang, Ying Fu, Xiangqing Kong
Summary: This paper presents the development and analysis of a novel bio-inspired composite sandwich panel (BCSP), which utilizes fiber metal laminate (FML) face sheets and a dual core structure inspired by the woodpecker's head design. Numerical simulations using ABAQUS/Explicit software demonstrate that the BCSP exhibits superior low-velocity impact behavior compared to a composite sandwich panel (CSP) with a single foam core. The impact resistance of the BCSP is influenced by factors such as face sheet thickness, rubber core thickness, and foam core height. The results indicate that the BCSP can effectively resist impact loads with reduced damage area and deformation compared to the CSP, and show potential for use in engineering protection applications.
Review
Mechanics
Aman Garg, Mohamed-Ouejdi Belarbi, H. D. Chalak, Anupam Chakrabarti
Summary: Extensive literature on the analysis of sandwich FGM structures discusses the use of these structures as important structural elements. This review study categorizes available manuscripts based on theories, material homogenization rules, and analysis methods, setting a benchmark for future research in this area. Studies on sandwich FGM structures under different loading conditions provide insights into the effects of porosities, hygrothermal loadings, and structures resting on elastic foundations.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Bin Yang, Qi Zhou, Juhyeong Lee, Yan Li, Kunkun Fu, Dongmin Yang
Summary: This paper investigates the low-velocity impact response and damage mechanisms of sandwich composite panels with UHMWPE composite facings and PVC/PET foam cores. Experimental tests and numerical simulations are conducted to analyze the effects of areal density and foam type on the impact characteristics of the panels. The results show that panels with PET foam cores exhibit higher impact strength and energy absorption performance, indicating the potential for optimizing the LVI resistance of SCPs.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2023)
Article
Engineering, Mechanical
Tripuresh Deb Singha, Tanmoy Bandyopadhyay, Amit Karmakar
Summary: A dynamic analysis of pre-twisted sandwich conical shell panel with functionally graded graphene-reinforced composite facings and homogeneous core under low-velocity impact in thermal environments is performed using a finite element method. The effects of critical parameters such as graphene grading profile, temperature, core-to-facings thickness ratio, pre-twist angle, span-to-cone length ratio, impactor's initial velocity, impactor's size, and porosity coefficient on the impact response are investigated. The study confirms that these parameters significantly influence the impact response of the pre-twisted sandwich panel.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Mechanical
Yonghui Wang, Jingyi Lu, Ximei Zhai, Xudong Zhi, Hongyuan Zhou
Summary: This study developed a new steel-concrete-steel sandwich panel with energy absorption connectors (SCS-EC) for resisting impact load and investigated its impact responses through tests and simulations. The failure modes of the SCS-EC were classified into two types based on the crushing magnitude of the energy absorption connector (EC). The EC effectively dissipated impact energy through the plastic deformation of pleated steel plates and the compression of aluminum foam fillers, while the SCS panel exhibited global and local deformation under impact loading. Additionally, the effects of pleated plate thickness and angle, aluminum foam filler, and initial momentum on the impact performances of the SCS-EC were quantitatively studied.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Engineering, Civil
Yunfei Deng, Weiqi Zhang, Xianzhi Zeng, Xupeng Liang, Chunping Zhou
Summary: In this study, a glass fiber foldcore sandwich panel was prepared using the hot pressing method and bonded with aluminum alloy panels. The impact response of the sandwich panel under low-velocity impact and the influence of foam filling on the impact response were investigated. The experimental results showed that the impact position significantly affected the damage mechanism and the filling foam had different effects on the impact response at different positions of the sandwich panel.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Civil
Ali Ghiamy, Hossein Amoushahi
Summary: In this paper, the dynamic buckling of different types of sandwich plates under harmonic axial load is analyzed using numerical finite strip analysis and Bolotin's solution. The results indicate the importance of investigating the dynamic buckling of sandwich plates, and the finite strip method shows acceptable accuracy in this field.
THIN-WALLED STRUCTURES
(2022)
Article
Construction & Building Technology
Yonghui Wang, Tilak Prasad Sah, Suntao Liu, Ximei Zhai
Summary: The new SESCS sandwich panel showed improved impact resistance compared to the traditional SCS panel, with increased steel plate and concrete core thickness further enhancing its performance. Finite Element (FE) models were developed and validated to analyze the damage evolution during impact, showcasing punching shear failure in the impact zone and flexural failure at the free side of the panel. Parametric studies were also conducted to investigate the influences of impact velocity, hammer mass, impact energy, and momentum of the hammer on the impact responses of SESCS sandwich panels.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Materials Science, Composites
Obed Tetteh, Patrick Mensah, Guoqiang Li
Summary: Here, a new sandwich panel was developed using a carbon fiber grid-stiffened shape memory vitrimer (SMV) core. The panels were manufactured using dry-weaving technology and evaluated for their impact response using low-velocity impact testing. The main failure mode observed was transverse cracking of the SMV matrix in the core. The panels showed strong impact resistance and a good possibility for use in aerospace and automotive applications.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Sid Ahmed Slimane, Abdelkader Slimane, Ahmed Guelailia, Abdelmadjid Boudjemai, Said Kebdani, Amine Smahat, Dahmane Mouloud
Summary: The study focuses on using bi-layer Ceramic/Aluminum facesheets for honeycomb sandwich panels as shield for spacecraft, and proposes a modeling strategy for predicting damage characteristics. The results indicate a significant improvement in resistance capacities with bi-layer facesheets compared to monolayer concepts.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Mohammed Chaib, Abdelkader Slimane, Sid Ahmed Slimane, Abdelakder Ziadi, Benattou Bouchouicha
Summary: Friction stir welding process is increasingly used in various industrial applications to connect metal structures, optimizing mechanical properties by studying parameters' interaction effects and finding the best combination through experimental design method. This optimization method can reduce the number of experiments, save time and financial costs.
FRATTURA ED INTEGRITA STRUTTURALE-FRACTURE AND STRUCTURAL INTEGRITY
(2021)
Article
Engineering, Mechanical
Ahmed Guelailia, Azzeddine Khorsi, Sid Ahmed Slimane, Hamza Blala, Abdelkader Slimane, Houria Salem, Abdessalem Bouferrouk
Summary: This paper proposes a novel shape of film cooling injection hole called lidded hole, and numerically investigates its cooling performance. The results show that the lidded hole configuration can significantly enhance the film cooling effectiveness, especially under certain lid height and blowing ratio conditions.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2022)
Article
Mechanics
Kouider Bendine, Dennis Gibhardt, Bodo Fiedler, Alexander Backs
Summary: Additive manufacturing technology is considered as the next generation production process, allowing the manufacturing of complex designs and reducing production time. However, the printing technology of reinforced carbon fiber is still under development. This study contributes to enhancing the understanding of the behavior of 3D printed parts based on carbon fiber reinforcement through various tests and analysis.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Hicham Kaidouchi, Said Kebdani, Sid Ahmed Slimane
Summary: An in-plane honeycomb sandwich structure used in aerospace applications was modeled and analyzed using finite element analysis software to study its structural-acoustic performances. Modal and steady state analyses were conducted to investigate the vibro-acoustic and sound transmission characteristics of the sandwich panel. Two different structural acoustic designs were performed, and it was found that glass fiber reinforced polymer (GFRP) cores with fiber-reinforced plastic (FRP) facing materials showed the best acoustic performances.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Engineering, Mechanical
Sid-Ahmed Dahmane, Abdelkader Slimane, Mohammed Chaib, Mohammed Kadem, Larbi Nehari, Sid-Ahmed Slimane, Abdelwahab Azzedine
Summary: In this work, we investigated the factors affecting the accuracy of positioning and rotation in industrial robot manipulators. We used the Denavit-Hartenberg model and the generalized transformation matrix to perform position and rotation calculations in different scenarios, particularly applied to the Puma 560 robot. To demonstrate our findings, we developed a program using symbolic calculation tools to determine the precision of the robot under given absolute uncertainties and calculated the positional errors in each case. By comparing our results with those of other authors, we identified the most influential parameter and proposed an analytical model that represents the methodology while providing confidence intervals for each parameter.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2023)
Article
Automation & Control Systems
Hamza Blala, Lihui Lang, Shahrukh Khan, Lei Li, Sheng Sijia, Ahmed Guelailia, Sid Ahmed Slimane, Sergei Alexandrov
Summary: This review article focuses on the recent developments in FML component production and FML sheet preparation, particularly on the mass manufacture of complex curve-shaped FML components using combined die forming techniques. The limitations and challenges in the forming processes of FMLs, including possible defects and deformation modes, are thoroughly discussed. The future scope of study and development is also evaluated, considering all the relevant factors.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Civil
Kouider Bendine, Joao Luiz Junho Pereira, Guilherme Ferreira Gomes
Summary: This paper presents a novel optimization approach using Artificial Neural Networks (ANN) to enhance the efficiency of a piezoelectric energy harvester. By optimizing material and geometrical parameters, the output voltage of the harvester is maximized, with significant reductions in computational costs achieved through ANN predictive modeling. The coupling of ANN and a lightning-inspired algorithm resulted in two designs that significantly increased energy harvesting.
Article
Construction & Building Technology
Emad Ghandourah, Kouider Bendine, Samir Khatir, Brahim Benaissa, Essam Mohammed Banoqitah, Abdulsalam Mohammed Alhawsawi, Essam B. B. Moustafa
Summary: In this research paper, a dynamic algorithm is proposed for accurate damage localization in functionally graded plates. The algorithm involves the creation of a grid matrix to capture the dynamic response of the structure and an optimization process using a linear equation to localize the damage precisely. Experimental tests on a functionally graded plate demonstrate the effectiveness of the proposed approach.
Article
Engineering, Aerospace
A. Guelailia, A. Khorsi, S. A. Slimane, A. M. Boudjemai, A. Smahat, P. Kumar
Summary: This paper investigates the effect of longitudinal curvature on film cooling performance and compares the numerical results with experimental data.
THERMOPHYSICS AND AEROMECHANICS
(2022)
Article
Mechanics
A. Guelailia, A. Khorsi, S. A. Slimane, M. M. Bencherif, K. Gourssma
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS
(2020)
Article
Engineering, Multidisciplinary
Mouloud Dahmane, Samir Zahaf, Mohamed Benkhettab, Mawhoub Soubih, Sid Ahmed Slimane, Djilali Boutchicha
Summary: In this paper, the equations are discretized using the standard finite element method and analyzed with a developed program in Matlab, showing the effect of different parameters on the stability of clamped-clamped pipes carrying fluid flow. Numerical results demonstrate the impact of mass ratio, length, pressure force, and Winkler elastic foundation on instability regions and static instability range.
STRUCTURAL INTEGRITY AND LIFE-INTEGRITET I VEK KONSTRUKCIJA
(2021)
