Article
Engineering, Chemical
Yating Yin, Shaoxiao Liu, Jin Zhou, Yu Peng, Enlin Wang, Lihui Han, Baowei Su
Summary: Organic solvent nanofiltration (OSN) is a promising membrane technology for organic solvent separation and purification. In this study, a thin film nanocomposite (TFN) OSN membrane with a COFs-polyamide selective layer was successfully fabricated using a one-step in-situ co-polymerization procedure. The TFN OSN membrane showed excellent separation performance and high solvent resistance.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Feng-Tao Zheng, Jianbo Qu, Zhou Sun
Summary: Bis(triethoxysilyl)ethane (BTESE) nanoparticles were incorporated into aromatic polyamide (PA) membranes via in-situ polymerization to prepare BTESE nanocomposite PA (BTESE-TFN) membranes for reverse osmosis. The BTESE nanoparticles increased surface roughness, hydrophilicity, and changed the structure of the PA membranes, leading to improved salt rejection and water flux. Modification of organic bridged groups in the BTESE showed great potential to further enhance the water flux and durability of the BTESE-TFN membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Xu Zhang, Yong Zeng, Chong Shen, Zixuan Fan, Qin Meng, Weizhen Zhang, Guoliang Zhang, Congjie Gao
Summary: The use of Fe3+-polyphenolic complex coating as an interlayer allows for the effective preparation of stable and high-quality MOF-based PA nanocomposite RO membranes, resulting in improved permeate flux and NaCl rejection rate.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Zhen-Zhen Zhao, Tao Wang, Xi Zheng, Yongsheng Ren, Zhi-Ping Zhao
Summary: In this study, a tailored TFN polyamide membrane for nanofiltration was successfully fabricated by incorporating MOF-808 into the selective layer. The surface morphology of the membrane changed when adding MOF-808, resulting in improved water permeance and rejection.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Na Sun, Bo Zhu, Xun Cai, Liyuan Yu, Xiaomin Yuan, Ye Zhang
Summary: Utilizing the in-situ synthesis of polyamide 6 (PA6) coating by anionic ring-opening polymerization of caprolactam (CPL) to modify carbon fiber (CF) can effectively improve the interface properties of CF/polyamide composites.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Chemical
Jaleh Mansouri, Shiyang Huang, Anthony Agostino, Rhiannon P. Kuchel, Greg Leslie, Chuyang Y. Tang, Anthony G. Fane
Summary: Understanding the kinetics of interfacial polymerization (IP) reaction is crucial for tailoring the characteristics and performance of reverse osmosis (RO) membranes. In this study, the kinetic behavior and film characteristics of polyamide (PA) film formation by IP reaction between M-phenylenediamine (MPD) and trimesoyl chloride (TMC) were investigated using the absorbance spectroscopy (AS) method in real-time. The results showed that monomer concentration and reaction time significantly influenced the kinetics of the IP reaction. The study confirmed the potential of the AS method for predicting the characteristics and optimizing the conditions of IP to achieve customized RO and nanofiltration (NF) membranes.
Article
Engineering, Chemical
Le Song, Xiulei Wang, Pengcheng Xie, Yumei Ding, Kaifang Dang, Weimin Yang
Summary: This study investigated the influence of fiber dissolution on the properties and structure of Single-polymer composites (SPCs) by adjusting polymerization time with varying activator dosage. It was found that the highest activator dosage led to maximum tensile strength, while a lower dosage resulted in longer polymerization time, destruction of oriented chain structure, and formation of oligomers, resulting in low strength and high deformation in SPCs. To achieve a good reinforcing effect, creating a sufficiently large dissolution window by reducing polymerization time is necessary.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Kiyoumars Zarshenas, Haozhen Dou, Saeed Habibpour, Aiping Yu, Zhongwei Chen
Summary: This research explores a method of using plant-derived polyphenol tannic acid (TA) to form a stable layer on the surface of MXene (Ti3C2Tx) nanosheets, and fabricating high-performance reverse osmosis polyamide thin film nanocomposite (RO-PA-TFN) membranes by incorporating modified MXene (Ti3C2Tx-TA) nanosheets in the polyamide selective layer. The results show that this method can enhance water permeability, maintain a high NaCl rejection rate, and exhibits enhanced anti-fouling tendency.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Chemical
Song Zhao, Zhiyuan Zha, Chenyue Mao, Zhi Wang, Jixiao Wang
Summary: In this study, COFs-polyamide hybrid membranes were fabricated via interfacial polymerization on polyacrylonitrile (PAN) substrate to improve the selectivity for small molecules. These membranes exhibited excellent separation performance, anti-fouling properties, and chemical stability. The separation performance of the hybrid membranes could be easily adjusted by tuning the trimesoyl chloride (TMC) contents during the membrane fabrication, providing novel insights into the structure, property, and application prospects of COFs membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Xi Zheng, Tao Wang, Shen-Hui Li, Ying-Nan Feng, Zhen-Zhen Zhao, Yong-Sheng Ren, Zhi-Ping Zhao
Summary: In this study, thin-film nanocomposite (TFN) membranes were successfully fabricated using 2D boron nitride nanosheets (BNNSs). The addition of BNNSs effectively regulated the uptake density and diffusion of the monomer, resulting in improved surface morphology and reduced thickness of the membrane. Furthermore, the TFN membranes demonstrated enhanced permeance and stable solute rejection for inorganic salts.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Jian Li, Lilantian Cheng, Weilong Song, Yilin Xu, Fei Liu, Zhenyu Wang
Summary: A novel thin film nanocomposite (TFN) nanofiltration (NF) membrane was successfully synthesized by combining interfacial polymerization and in-situ sol-gel method. The optimal separation performance was achieved by tailoring the formation process of silicon dioxide (SiO2) nanoparticles. The membrane exhibited high water permeability, high rejection rates against dyes, low salt rejections, and excellent long-term operational stability.
Article
Engineering, Chemical
Hao-Ran Zuo, Shu-Ya Pang, Ming Duan, Wei Su, Hang Shu, Xiang-Feng Xu
Summary: This study introduced a methodology to predict the structural performance of polyamide composite membranes by correcting the flux of monomers. By regulating the structure of the skin layer, a high-performance forward osmosis membrane was synthesized, breaking the historical upper boundary.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Zhenwei Wu, Jianxian Zeng, Zhengqiu Yuan, Rui Zhang, Xiaoping Huang, Fan Feng, Minjuan Chen, Kai Jin, Shengkai Yang, Yahong Li
Summary: In this study, a novel sandwich-like thin-film nanocomposite membrane (TFNi) with improved separation performance was prepared by introducing porous nanomaterials into a polyamide thin layer.
Article
Chemistry, Physical
H. M. Fayzan Shakir, Mahnoor Shahzad, Huzaifa R. Aziz, M. Saad Rizwan, Sohaib Shahid, S. Hasan Ali, Tingkai Zhao
Summary: In this study, barium hexaferrite-polypyrrole (BHF-Ppy) nanoparticles were synthesized by in-situ polymerization method and showed excellent electromagnetic interference shielding properties in both near-infrared and microwave regions, as confirmed by microstructure characterization and performance testing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Long Chen, Xiaomin Ren, Yanxiang Li, Dan Hu, Xudong Feng, Wangliang Li
Summary: The addition of dopamine in the interfacial polymerization aqueous solution effectively repairs the defects between nanoparticles and polymers, improving the performance and selectivity of the nanofiltration membranes. The membranes with dopamine exhibit reduced surface roughness, increased nanoparticle anchoring, improved hydrophilicity, and achieved high water permeance and Na2SO4 rejection. Furthermore, the membranes show excellent selectivity for Cl-/SO42-.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Valentina Guccini, Josphat Phiri, Jon Trifol, Ville Rissanen, Seyede Maryam Mousavi, Jaana Vapaavuori, Tekla Tammelin, Thaddeus Maloney, Eero Kontturi
Summary: The osmotic dehydration method was used to adjust the water content and porosity of CNF hydrogels, with solid contents ranging from 0.7 to 12 wt %. The study found a reciprocal correlation between proton conductivity and the ratio of water bound to the nanocellulose network, indicating the potential of these systems for tunable energy materials.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Agricultural Engineering
Jon Trifol, Rosana Moriana
Summary: In this paper, the synergetic properties of two different grades of nanocelluloses with different chemical compositions were studied. It was found that the addition of nanocellulose with 16% lignin can improve the mechanical and barrier properties of the films, demonstrating the potential for gas barrier packaging solutions.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Polymer Science
Kasra Yari, Iman Akbari, Hossein Baniasadi
Summary: In this study, ibuprofen nanoparticles (Ibp NPs) with a particle size of less than 50 nm were synthesized and loaded into sodium alginate/psyllium seed mucilage (SA/PSM) carriers for a controlled drug release. The results showed that the SA/PSM beads had low swelling and release in acidic medium, and the drug release followed Fickian diffusion mechanism type.
Article
Biochemistry & Molecular Biology
Maryam Madani, Sedigheh Borandeh, Arun Kumar Teoti, Jukka V. Seppala
Summary: Due to increasing public concern over hygiene, this study focuses on developing biobased virucidal/virus capture agents by modifying the surface of cellulose nanocrystals (CNCs) with positively charged functional groups. The direct and indirect cationization of CNCs leads to biobased agents with immobilized cationic charge, showing good virus capture activity. These agents have potential applications in various fields including textiles, packaging, and wastewater treatment.
Article
Engineering, Environmental
Hossein Baniasadi, Sami Lipponen, Max Asplund, Jukka Seppala
Summary: Blending polymers with a high concentration of bio-based fillers can reduce dependency on petroleum-based feedstocks and decrease the carbon footprint. In this study, n-octadecyl isocyanate (ODI) molecules were grafted onto lignin particles to make them compatible with a copolyamide matrix. Different concentrations of the surface-modified particles were blended with a low-melting point copolyimide, resulting in improved mechanical properties of the biocomposites. The findings suggest that these newly developed biocomposites with a green content of up to 80% are attractive alternatives to petroleum-based plastics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Sandra Rojas-Lema, Klara Nilsson, Maud Langton, Jon Trifol, Jaume Gomez-Caturla, Rafael Balart, Daniel Garcia-Garcia, Rosana Moriana
Summary: In this study, faba bean protein (FBP) films were made by solution casting and plasticized with glycerol, and different amounts of lignin extracted from pine cones (PL) were added as reinforcement (2.5%, 5.0%, 7.5% and 10% by weight of FBP). The addition of 5% PL to the FBP film resulted in a 107% increase in elongation at break compared to the control film. The thermal stability and water vapor permeability of the FBP films were improved by the incorporation of lignin, and the films reinforced with 2.5% PL showed the best barrier properties and the lowest moisture content. The study suggests that these biobased and biodegradable films have potential applications in packaging.
JOURNAL OF FOOD ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Arun Teotia, Isabella Lauren, Sedigheh Borandeh, Jukka Seppala
Summary: Cationic polysaccharides, specifically quaternary chitosans (QCs), have shown significant antimicrobial properties and can be potential antiviral agents. This study aimed to develop metal-free and environmentally friendly QCs with long-lasting virucidal activity. The influence of quaternary functional group, charge density, and molecular weight on the antiviral properties of QCs was investigated. The findings demonstrated that heterogeneously functionalized chitosan derivatives exhibited excellent antiviral activity and have promising potential in various biomedical applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Kimia Shahbazi, Iman Akbari, Hossein Baniasadi
Summary: Nanocapsules of curcumin-zein as core and polycaprolactone-mucilage (PCL-MUC) as a shell were successfully fabricated using an electrospray process for drug delivery applications. The monodisperse and spherical nanocapsules with an average diameter of 200 nm were obtained and validated by SEM and TEM images. In addition, the in vitro release study showed a burst release for the first 6 h followed by a sustained release for the next 24 h, with 30% curcumin release observed after 24 h.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Energy & Fuels
Hossein Baniasadi, Jukka Seppala, Ari Kankkunen, Ari Seppala, Maryam Roza Yazdani
Summary: The development of a leakage-proof phase change composite (PCC) that incorporates a bio-polymeric matrix, gum tragacanth (GT) biopolymer, and polyethylene glycol (PEG) PCM, with enhanced mechanical strength and thermal stability through the addition of biochar (BC) or Cloisite Na+ mineral additive, has been achieved. The composite displays hydrophobic properties and exhibits high latent heat storage capacity, stable phase change behavior, and notable compressive mechanical properties. With a low thermal conductivity, this bio-based composite is suitable for transportation packaging of temperature-sensitive products.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Hossein Baniasadi, Zahra Madani, Mithila Mohan, Maija Vaara, Sami Lipponen, Jaana Vapaavuori, Jukka V. Seppala
Summary: This study introduces the development of a thermally responsive shape-morphing fabric using low-melting-point polyamide shape memory actuators. Homogeneous dispersion of compatibilized starch particles into the matrix is achieved, resulting in composites with excellent mechanical properties. The composites exhibit remarkable shape recovery properties, making them suitable for designing heat-responsive textiles.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Shazia Shaikh, Hossein Baniasadi, Shreya Mehrotra, Rupita Ghosh, Prerna Singh, Jukka V. Seppala, Ashok Kumar
Summary: This study focuses on addressing the limitations of traditional metal-alloy bone fixation devices by fabricating biodegradable composites using poly(lactic acid) (PLA) and strontium-substituted nanohydroxyapatite (SrHAP). The composites demonstrate improved mechanical properties, formability, and radiopacity, making them suitable as implant materials for orthopedic applications.
Article
Energy & Fuels
Hossein Baniasadi, Despoina Chatzikosmidou, Ari Kankkunen, Jukka Seppala, Maryam R. Yazdani Mccord
Summary: A novel flexible phase change textile was developed based on blends of decanoic acid (DA) and polyamide 11 (PA11) with various mass ratios via electrospinning. A conductive polypyrrole (PPy) coating was designed via in-situ polymerization. The textile exhibited porous and highly homogeneous morphology with smooth, long, continuous, and free-bead fibers, and had electrical conductivity of up to 28.89 ± 1.50 S/m. The phase change enthalpies remained stable even after 100 thermal cycles, and the conductive textile showed significant electro- and photo-heat storage and conversion, making it suitable for wearable and protective systems.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Energy & Fuels
Hossein Baniasadi, Maryam Madani, Jukka Seppala, Julie B. Zimmerman, Maryam Roza Yazdani
Summary: This study introduces a smart multifunctional textile composed of PEG and PCL, with the addition of gelatin and curcumin to enable biomedical performance. The electrospun nanofibers exhibit good water absorption, mechanical properties, and excellent phase change performance. The fabricated mats have a high latent heat and reliable energy absorption-release cyclability, as well as a sustained release of curcumin with significant antioxidant activity. These textiles have great potential as biomedical dressings with inflammation-reducing and cooling effects.
JOURNAL OF ENERGY STORAGE
(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)