Article
Construction & Building Technology
Yuqin Li, Brian Y. Lattimer, Scott W. Case
Summary: This study evaluates the measurement of properties of construction materials under high temperature exposure, finding that virgin and char materials can be used in combination with thermogravimetric data to estimate material properties at intermediate decomposition levels. Permeability depends on the structure and composition of the material, with decomposition increasing space between elements and resulting in higher permeability.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Ceramics
Alessandro Filipponi, Giulia Masi, Maria Chiara Bignozzi
Summary: This study aims to investigate the influence of parameters such as Na/Al molar ratio, water content, and pressure load on the physical, microstructural, and durability properties of one-part pressed geopolymers. The results show that these parameters play a key role in controlling the properties of geopolymers and optimizing them can lead to geopolymers suitable for microfiltration flat membrane support. The best performances in terms of durability are obtained when using the highest pressure load (20 MPa) and water content (15%).
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Priya Bisht, Krishna K. Pandey, G. Srinivas
Summary: This paper describes the fabrication of large size transparent wood composite (TWC) using a two-step lignin modification bleaching process and polymer infiltration. The TWC exhibits high optical transmittance, good mechanical properties, thermal stability, and low thermal conductivity.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Forestry
Huijun Dong, Redzo Hasanagic, Leila Fathi, Mohsen Bahmani, Davor Krzisnik, Eli Kerzic, Miha Humar
Summary: This study aimed to evaluate the impact of thermal modification on the physical and mechanical properties of three different wood species from Bosnia and Herzegovina. The results showed that outdoor exposure negatively impacted the mechanical properties of the unmodified samples, especially in the linden and beech wood. This study demonstrates the importance of wood modification and its impact on the use-value of wood products.
Article
Materials Science, Multidisciplinary
Robar Arafat, Christian Koehn, Annelise Jean-Fulcrand, Tim Abraham, Georg Garnweitner, Christoph Herrmann
Summary: This study investigated the usability of Al2O3, ZrO2, and TiO2 nanoparticles in water-glycerine based nanofluids as MQL-cutting fluids in tribological tests. The physical-chemical properties and behavior of the nanofluids were assessed, and the influence of these properties on wear and particle deposition on steel workpieces was evaluated.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Construction & Building Technology
Suthon Srivaro, Hyungsuk Lim, Minghao Li, Sataporn Jantawee, Jaipet Tomad
Summary: Thermal compression can significantly improve the physical and mechanical properties of coconut wood, but does not enhance parallel-to-grain shear strength. Densified specimens made from medium-density wood exhibit better dimensional stability and shear strength at the same density level, while low-density wood can be densified to a higher degree without distortion.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Composites
Tej Singh, Laszlo Lendvai, Gabor Dogossy, Gusztav Fekete
Summary: The study found that increasing wood waste content resulted in certain properties of the composite materials increasing, such as modulus, porosity, and water absorption, while other properties decreased such as density, tensile strength, impact strength, and stress at break. However, the flexural strength of the composites remained relatively constant. Differential scanning calorimetry analysis showed that wood waste helped increase the glass transition and cold crystallization temperature of PLA composites.
POLYMER COMPOSITES
(2021)
Article
Forestry
Jariyaporn Rakkaew, Narongrit Sombatsompop, Teerasak Markpin, Ekachai Wimolmala, Kiadtisak Saenboonruang
Summary: This study focused on enhancing the gamma shielding properties of WPVC composites by incorporating bismuth-embedded wood particles, and found that BiCl3 loading increased density and hardness while decreasing impact strength and water absorption.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2022)
Article
Chemistry, Multidisciplinary
Mabkhoot Alsaiari, Khumara Roghani, Saad Liaqat, Ali S. Alkorbi, Faiza Sharif, Muhammad Irfan, Moustafa A. Rizk, Maliha Uroos, Naveed Ahmad, Nawshad Muhammad
Summary: This study evaluates the effect of ionic liquids and their structure on the mechanical, mass change, and antifungal properties of soft denture lining material. The addition of ionic liquids improves the surface texture, hardness, and reduces the mass change and tensile strength of the lining material. Ionic liquids also exhibit potent antifungal activity.
Article
Thermodynamics
Onur Taskin, Ahmet Polat, Akin Burak Etemoglu, Nazmi Izli
Summary: This study investigated the convective air drying of banana slices at different temperatures and found that energy and exergy efficiencies decreased with higher drying temperature. The drying process was shortened with higher temperature, and different models were used to describe the drying curves at each temperature. The microstructure and thermal properties of the dried banana samples were also analyzed, showing potential industrial applications for convective drying.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Polymer Science
Santosh Kumar, Abir Saha
Summary: The study found that adding a relatively low concentration of graphene nanoplatelets can significantly enhance the physical, mechanical, thermal, and fracture properties of microwood particle-reinforced epoxy composites, while higher wood particle loading can cause agglomeration and weaken the bonding with the epoxy matrix, leading to decreased properties.
IRANIAN POLYMER JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Tongjun Liu, Jun-Yu Ou, Eric Plum, Kevin F. MacDonald, Nikolay Zheludev
Summary: This technique combines high sensitivity picometric displacement detection with nanometric spatial resolution of electron microscopy, allowing for observation of fast movements of micro-/nano-objects, quantitative validation of nanocantilever’s Brownian motion, and visualization of externally driven modes.
Article
Polymer Science
Kakur Naresh, Kamran A. Khan, Rehan Umer
Summary: This study investigated the effects of different graphene oxide concentrations on the mechanical and thermal properties of epoxy, proposing analytical models to predict Young's modulus and thermal conductivity. The 0.2 wt% nanocomposite samples showed relatively high storage modulus, heat-resistance index, and thermal conductivity compared to pure epoxy and lower concentration GO nanocomposites, indicating higher thermal stability.
Article
Forestry
Elin Xiang, Jing Li, Rongfeng Huang, Zhiqiang Gao, Shumin Yang
Summary: An environmentally friendly modification technology combining controllable densification and superheated steam treatment was used to process fast-growing wood into a sandwich-densified structural material. The study investigated the effects of densified layer position and superheated steam pressure on the properties of the wood. The results showed that sandwich-densified wood with different structural modes can be formed, and the mechanical properties and dimensional stability were significantly improved.
WOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Construction & Building Technology
Le T. Pham, Steven M. Cramer
Summary: This study examined the properties of air bubbles extracted from air-entrained cement paste using new techniques such as atomic force microscopy and scanning electron microscopy. The results showed that air bubbles associated with synthetic AEAs had thinner and more-flexible shells than those with neutralized vinsol resin. The stiffness and thickness of the bubble shells were correlated with the stability of air bubbles in concrete.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2022)
Review
Environmental Sciences
Abdelghani Remadnia, Adeline Goullieux, Michele Queneudec, Rose-Marie Dheilly
WASTE AND BIOMASS VALORIZATION
(2020)
Article
Environmental Sciences
Ali Al-Mohamadawi, Karim Benhabib, Rose-Marie Dheilly, Adeline Goullieux
WASTE AND BIOMASS VALORIZATION
(2020)
Review
Materials Science, Composites
Khalil Hamdi, Zoheir Aboura, Walid Harizi, Kamel Khellil
JOURNAL OF COMPOSITE MATERIALS
(2020)
Article
Environmental Sciences
N. El Hajj, S. Seif, N. Zgheib
Summary: This study investigated the production of composite materials using post-consumer polypropylene car bumper waste and short glass fibers. The effects of fiber loadings, coupling agents, fiber length, and ratios were thoroughly studied on the thermal, physical, and mechanical properties. Various findings were reported, such as changes in crystallization temperature, improvements in flexural and tensile properties, and the role of coupling agents in enhancing fiber distribution and matrix compatibility.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Article
Instruments & Instrumentation
C. Tuloup, W. Harizi, Z. Aboura, Y. Meyer
SMART MATERIALS AND STRUCTURES
(2020)
Article
Mechanics
Walid Harizi, Joey Anjoul, Victor A. Acosta Santamaria, Zoheir Aboura, Valerie Briand
Summary: This study investigates the bending behavior of carbon-fiber-reinforced thermoplastic sandwich composites using a mechanical-acoustic experimental coupling approach, monitoring the performance of different sandwich structures in real-time. Results show that aluminum core sandwich structures exhibit the highest stiffness, while thermoplastic PEI core sandwich structures display the best ductility and energy absorption capacity.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Khalil Hamdi, Gurvan Moreau, Zoheir Aboura
Summary: This study investigated the compressive mechanical properties and damaging scenario of two types of CFRP with different resins. Multiple techniques were used to analyze the damage progression, showing that the resin had a minor effect on the overall compression behavior of the composites. Signal processing tools were utilized to cluster acoustic emission signals and identify the beginning of severe damage based on the matrix type.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
J. Najd, W. Harizi, Z. Aboura, E. Zappino, E. Carrera
Summary: This study investigates the fatigue limit and damage quantification of PMC materials using electrical capacitance and temperature variations as physical magnitudes. The proposed novel damage estimation curves provide a relatively fast and accurate estimation of the fatigue limit.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Composites
Libor Navratil, Vincent Le Saux, Yann Marco, Zoheir Aboura, Walid Harizi, Clement Cuniberti, Nicolas Carrere, Sylvain Leclercq
Summary: This article introduces an interlock woven composite and investigates the dissipative mechanisms and damage scenario activated under cyclic loadings through heat build-up experiments. The results show that the coupling of infrared thermometry and acoustic emission monitoring provides useful information to identify the most important dissipation sources, such as viscoelasticity, damage, and friction. By analyzing different loading sequences, the evolution of dissipation and damage during heat build-up experiments can be elaborated.
JOURNAL OF COMPOSITE MATERIALS
(2022)
Article
Thermodynamics
M. Rashid, K. Chetehouna, A. Settar, J. Rousseau, C. Roudaut, L. Lemee, Z. Aboura
Summary: This study focuses on the thermal degradation behavior of a newly developed fire retardant coated Green BioComposite (GBC) and establishes a predictive model for its kinetics of degradation. The GBC is characterized using Thermo Gravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM), and different proportions of fire retardant components are studied for their heat shielding effect and morphology. The development of predictive models for the degradation of such materials is essential due to the expensive and high heating rates required for industrial-scale evaluation.
THERMOCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Jamal Najd, Enrico Zappino, Erasmo Carrera, Walid Harizi, Zoheir Aboura
Summary: This paper proposes a two-dimensional refined finite element model based on CUF to predict the capacitance variation of embedded piezoelectric sensors. The accurate stress field of laminated structures with embedded sensors is evaluated using refined layer-wise models. A fully coupled electro-mechanical formulation is adopted to predict the piezoelectric response. Results show that the capacitance variation is highly affected by through-the-thickness deformations, which cannot be predicted by classical models.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2023)
Article
Chemistry, Analytical
Jamal Najd, Enrico Zappino, Erasmo Carrera, Walid Harizi, Zoheir Aboura
Summary: This paper assessed the use of variable kinematic models in the dynamic analysis of Lamb waves, showing that higher order kinematic models can improve wave propagation accuracy, and node-dependent kinematic models can reduce computational cost.
Article
Energy & Fuels
Abdelmadjid Mahfoudh Bendjerad, Nawel Cheikh, Houcine Benmehdi, Nicolas Montrelay, Koffi Justin Houessou, Xavier Pierens, Karim Ben-Habib, Adeline Goullieux, Rose Marie Dheilly
Summary: This research uses montmorillonite clay and acetic acid to treat waste oil, providing a cost-effective and environmentally friendly method to reclaim recycled oil as base oil.
Article
Chemistry, Analytical
Loan Dolbachian, Walid Harizi, Zoheir Aboura
Summary: Nowadays, nonlinear vibration methods are increasingly used for detecting damage mechanisms in anisotropic and heterogeneous polymer matrix composite (PMC) materials. This study employed two nonlinear vibration methods, nonlinear resonance (NLR) and single frequency excitation (SFE), to detect different types of damage in PMC using an in situ embedded polyvinylidene fluoride (PVDF) piezoelectric sensor. The effectiveness of the integrated PVDF sensor was validated using an accelerometer.
Proceedings Paper
Computer Science, Artificial Intelligence
A. Goullieux, M. Hifi, S. Sadeghsa
PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON OPERATIONS RESEARCH AND ENTERPRISE SYSTEMS (ICORES)
(2020)
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)
