Review
Polymer Science
Biltu Mahato, Stepan V. Lomov, Aleksei Shiverskii, Mohammad Owais, Sergey G. Abaimov
Summary: This paper provides an overview of the application of nanofiber polymeric veils as toughening interleaves in fiber-reinforced composite laminates. It presents a comparative analysis and summary of attainable fracture toughness improvements based on electrospun veil materials. The toughening mechanisms introduced by polymeric veils are identified, listed, and analyzed, and the numerical modeling of failure in Mode I and Mode II delamination is discussed.
Article
Engineering, Mechanical
Reza Mohammadi, Roya Akrami, Maher Assaad, Mohamed Nasor, Ahmed Imran, Mohammad Fotouhi
Summary: This study investigated the fatigue properties of carbon fiber-reinforced polymer composite laminates and explored the effect of incorporating polysulfone nanofibers as an interleaving material. The results showed that adding polysulfone nanofibers significantly improved the fracture toughness and fatigue resistance of the composite laminates.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2023)
Article
Engineering, Manufacturing
T. Khan, M. S. Irfan, W. J. Cantwell, R. Umer
Summary: Pre-cracked carbon fiber reinforced composite laminates were manufactured and repaired using the vacuum assisted resin transfer molding process. The effects of healing parameters on fracture toughness were investigated using a factorial design of experiments. The results showed that joining temperature had the most significant influence on fracture toughness, followed by contact time. Optimizing the processing parameters can enhance fracture toughness.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Multidisciplinary
Philipp Hahn, Harichandana Channammagari, Mathieu Imbert, Michael May
Summary: This paper presents a novel high-rate transverse crack tension (TCT) test for determining mode II fracture toughness under high strain rates. The results show that the fracture toughness of the tested composite under high-rate loading is at least 50% higher compared to quasi-static loading.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Chang-Bin Oh, Byeong-Joo Kim, Man Young Lee
Summary: A unidirectional carbon fiber-reinforced composite with excellent interlaminar fracture toughness (ILFT) was achieved by treating polyethylene-terephthalate (PET) based thermoplastic veils with carbon nanofiber (CNF)-modified coupling agents. The multiscale reinforcement mechanisms, including microfibers and chemical bonding, significantly improved the mechanical properties of the composites.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Composites
Shaohua Fei, Weiwei Wang, Han Wang, Di Yang, Huiming Ding, Haijin Wang, Jiangxiong Li, Yinglin Ke
Summary: This study introduces an ultrasound guided Z-pinning process to enhance the interlaminar performance of composite laminates. Experimental results demonstrate that the use of fine Z-pins can significantly improve the mechanical properties of composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Yunfu Ou, Longqiang Wu, Meir Hefetz, Carlos Gonzalez, Juan Jose Vilatela
Summary: This study presents a method for fabricating carbon nanotube fibre veils on woven carbon fibre/epoxy composite laminates and investigates the effects of interleaf thickness and degree of infiltration on interlaminar properties. The interlaminar fracture toughness under different loading conditions is analyzed, and the failure and toughening mechanisms are systematically studied. The experimental results show that the toughening effects of CNT veils depend on their thickness and degree of resin infiltration, observed by electron microscopy and Raman spectroscopy. The mode I interlaminar fracture toughness increases with increasing CNT veil thickness up to 10 μm, but decreases at 15 μm, while the mode II fracture toughness improves with increasing thickness of CNT veils. The figure of merit for interlaminar reinforcement is significantly high at 58.5, surpassing the current state-of-the-art.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Engineering, Manufacturing
Sheng Wang, Mehmet Cagatay Akbolat, Oguzcan Inal, Kali Babu Katnam, Zhenmin Zou, Prasad Potluri, James Taylor
Summary: This study investigates the effect of short micro-fibre-based veils on the fracture energies and R-curves of composite laminates, with a focus on the role of veil binders. The results show that the binders used in the manufacturing of veils have a considerable impact on fracture energy, crack path, and R-curve behavior, with a more pronounced effect in the laminates with carbon veils.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Mechanics
C. Kostagiannakopoulou, T. H. Loutas, G. Sotiriadis, V Kostopoulos
Summary: This research paper investigates the impact of aspect ratio and specific surface area of Graphene Nano-Platelets on the interlaminar fracture behavior of carbon fiber-reinforced polymer composites. The study found that GNPs with higher aspect ratios and specific surface areas lead to improved interlaminar fracture toughness under both Mode I and Mode II loading compared to unmodified composites.
ENGINEERING FRACTURE MECHANICS
(2021)
Article
Engineering, Manufacturing
Mohanad Idrees, Giuseppe R. Palmese, Nicolas J. Alvarez
Summary: Interleaving is an effective method to improve delamination resistance in composites. However, there is a lack of design rules for the choice of resin in interleaving. While previous studies suggest that any resin can be used, our research shows that the choice of resin is critical for translating toughness properties.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Engineering, Mechanical
Natassia Lona Batista, Konstantinos Anagnostopoulos, Edson Cocchieri Botelho, Hyonny Kim
Summary: This study evaluated the influence of different degrees of crystallinity on PPS/carbon fiber composites processed by hot compression molding, showing that composite samples processed with lower cooling rates exhibit better mechanical properties. The mode-II fracture toughness is strongly dependent on the degree of crystallinity of the thermoplastic matrix, with lower cooling rates yielding stronger interfacial bonds.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Engineering, Civil
Yu Gong, Kaixin Xia, Yana Wang, Libin Zhao, Jianyu Zhang, Ning Hu
Summary: This study establishes a semi-analytical model for determining the mode II fracture toughness of multidirectional laminates. The effects of interfacial angles on fracture toughness are investigated and the model has a clear correlation with the interfacial angles, showing good agreement with test results.
THIN-WALLED STRUCTURES
(2023)
Article
Materials Science, Composites
Johann Koerbelin, Benedikt Koetter, Hauke Voormann, Lukas Brandenburg, Stefan Selz, Bodo Fiedler
Summary: The study found that FLG modification significantly improved the performance of CFRP, increase the inter-laminar energy release rates, reduce notch sensitivity, and enhance compressive strength. Additionally, FLG modification also increased the usable design space.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Amit Ramji, Yigeng Xu, Marzio Grasso, Mehdi Yasaee, Philip Webb
Summary: The experimental study found that the delamination resistance of 5-harness satin woven laminates is influenced by both interfacial fiber orientation and veil density, with the 90/45 fiber orientation bias exhibiting the greatest resistance, while increasing veil density has limited additional benefits on resistance enhancement.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Aerospace
Fan Zhang, Xin Liu, Yaoyao Ye, Qisen Chen, Qiang Xu, Yunbo Bi
Summary: Automated Fiber Placement (AFP) technology is efficient and accurate, making it suitable for manufacturing composite structures with complex geometry. However, the imperfections caused by this automated method pose challenges to the stability of the composite's mechanical properties. This study experimentally investigates the influence of AFP-induced gaps and overlaps on interlaminar fracture in oven-cured laminates. The findings show that the fracture toughness of the laminates is slightly reduced in the presence of gaps, but significantly increased in the presence of overlaps. Fractographic studies reveal that the increased fracture area and crack length improve the fracture toughness in the overlap group, while the resin-rich area induced by gaps negatively affects delamination resistance.
CHINESE JOURNAL OF AERONAUTICS
(2023)
Article
Materials Science, Textiles
Mohammad Sajad Sorayani Bafqi, Abdol-Hossein Sadeghi, Masoud Latifi, Roohollah Bagherzadeh
Summary: This study introduced a novel system, PiezoTester, for evaluating the piezoelectric properties of flexible energy harvesters and sensors, with its performance validated against other measuring methods. The results showed promising evidence that PiezoTester could be used as a reliable system for assessing the piezoelectric properties of different samples.
JOURNAL OF INDUSTRIAL TEXTILES
(2021)
Article
Materials Science, Textiles
Sheyda Sadat Mirjalali Bandari, Azita Asayesh, Masoud Latifi
FIBERS AND POLYMERS
(2020)
Article
Materials Science, Textiles
Mohammad Sajad Sorayani Bafqi, Masoud Latifi, Abdol-Hossein Sadeghi, Roohollah Bagherzadeh
Summary: This paper investigates the effect of cyclic compressive load on the performance of polyvinylidene fluoride micro-nano fibrous nanogenerators and finds that the electrical output initially increases greatly, then reaches a maximum level with a gentle slope as the number of cycles increases at a constant frequency. Additionally, applying periodic compressive force improves the crystalline structure and beta-phase of the PVDF nanofibrous mats. The study also shows that mechanical properties improve with an increase in the number of cycles at a constant frequency, providing insights into the expected lifetime of a fibrous nanogenerator exposed to cyclic compressive pressure.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Materials Science, Textiles
Mohammad Amin Rahiminia, Masoud Latifi, Mojtaba Sadighi
Summary: The longitudinal tubular braid texture is a significant texture in industrial textiles but has weakness in the circumferential direction. This study introduces a new transversal tubular braid texture structure that combines braid and Leno technique to overcome the weakness of the longitudinal tubular braid texture. The mechanical properties of the introduced texture were analyzed and compared through simulations and experiments, confirming that the transversal lattice tubular braid texture has superior mechanical strength compared to the longitudinal lattice tubular braid texture.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Chemistry, Multidisciplinary
Saba Kalantary, Farideh Golbabaei, Masoud Latifi, Mohammad Ali Shokrgozar, Mehdi Yaseri
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2020)
Article
Engineering, Chemical
Elahe Sharifisamani, Fatemeh Mousazadegan, Roohollah Bagherzadeh, Masoud Latifi
POLYMER ENGINEERING AND SCIENCE
(2020)
Article
Materials Science, Textiles
Samane Azmi, Seyed-Mohammad Hosseini Varkiani, Masoud Latifi, Roohollah Bagherzadeh
Summary: This research presents an engineering approach to fabricate multilayered electrospun nanofiber mats with high conversion performance and improved physical stability. The effect of fiber alignments and layering angles on the piezoelectric responses of the mats was investigated. Results showed that increasing drum speeds improved the crystal structure and the formation of beta-phase. Samples with well-aligned nanofibers exhibited significantly improved electrical responses when exposed to periodic mechanical impact. Multilayered samples with different layering angles showed different improvements in their electrical output.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Materials Science, Multidisciplinary
Soheil Dariushi, Sepideh Farahmandnia, Amir Masoud Rezadoust
Summary: The vacuum infusion process can be used to fabricate fiber metal laminates with reduced manufacturing time and cost. By using a non-perforated aluminum layer as the first layer in contact with the mold, structural strength and exposure to environmental conditions can be improved. However, the presence of holes in the aluminum layers can slightly decrease the final strength of the sample.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2021)
Article
Materials Science, Composites
Mohammad Razavi-Nouri, Amir Masood Rezadoust, Zahra Soheilpour, Keyvan Garoosi, Seyed Reza Ghaffarian
Summary: With the increase in layer thickness, the tensile strength of printed specimens decreased, but the raster angle did not have a significant effect on the properties. In samples containing 3% MWCNT, nanoparticles were reasonably dispersed throughout the matrix.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Textiles
Geranaz Sargolzaei, Fatemeh Mousazadegan, Nazanin Ezazshahabi, Masoud Latifi
Summary: This study used a heating cylinder and knitted fabric tubular samples to simulate ventilation in human clothing. Experimental results showed that increasing air gap thickness significantly improved ventilation rate. In the absence of wind, there was little change in air gap temperature, but increasing wind speed was found to enhance ventilation rate.
FIBERS AND POLYMERS
(2021)
Article
Materials Science, Textiles
Farzaneh Zare Bidoki, Nazanin Ezazshahabi, Fatemeh Mousazadegan, Masoud Latifi
Summary: Hands are vital for carrying out various tasks, especially in industrial environments where they may be exposed to dangers. This study investigated the effects of wearing industrial protective gloves on hand performance. The research found that wearing gloves and increasing the number of layers improved the protective performance in terms of pain threshold tolerance, but decreased tactile sensitivity, strength capability, and manual dexterity.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Engineering, Electrical & Electronic
Amin Forouzan, Maryam Yousefzadeh, Masoud Latifi, Kui Yao
Summary: Increasing the contact area between electrodes and active piezoelectric nanofibers significantly improves the piezoelectric output of PNFs in response to mechanical input. Optimized electrode connections and coverage result in large output voltage magnitude, as observed in piezoelectric core-sheath yarn PNF samples.
IEEE SENSORS JOURNAL
(2022)
Article
Materials Science, Composites
Behzad Najafloo, Amir Masood Rezadoust, Masoud Latifi
Summary: 3D-printed continuous fiber reinforced thermoset composites with optimized process parameters exhibit exceptional mechanical properties, including a remarkable ultimate tensile strength and ductile failure mode under flexural loading. These findings highlight the significant potential of 3D-printed CFTCs for various applications demanding high-strength composite materials.
POLYMER COMPOSITES
(2023)
Article
Engineering, Manufacturing
Nastaran Mosleh, Amir M. Rezadoust, Soheil Dariushi
Summary: Continuous carbon-fiber-reinforced ABS composites were successfully manufactured using FDM 3D printing technology. By optimizing printing conditions, high-quality composite specimens were printed with improved mechanical properties compared to neat ABS samples.
MATERIALS AND MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
Amin Forouzan, Maryam Yousefzadeh, Masoud Latifi, Rajan Jose
Summary: This study focused on understanding the effect of geometrical parameters on the piezoelectric voltage of electrospun yarns of PVDF polymer and P(VDF-TrFE) copolymer, achieving a record piezovoltage of approximately 2.5 V. The piezoresponse of woven nanogenerators can be enhanced by decreasing Tex and increasing TPM, plying number, and fabric density. These results can be useful for the fabrication of flexible and breathable nanogenerators or sensors.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2021)
