Article
Chemistry, Physical
Jian Wang, Tianqi Qiao, Aidong Wang, Xiudong Li, Tao Wang
Summary: A method of constructing high strength and toughness at the interface of Al/CFRP/Al laminate is proposed by adding resin and carbon nanotubes. Experimental results show that gullies and micropores on the surface of aluminum can increase the contact area between aluminum and matrix. Adding resin to the Al/CFRP interface improves the shear and bending strength as well as impact resistance. Mixing carbon nanotubes into the resin further enhances the mechanical properties. Carbon nanotubes between the CFRP layers strengthen and toughen the resin at the interface, increasing the bending strength and impact resistance by resisting resin damage and hindering crack propagation.
Article
Materials Science, Multidisciplinary
Yufeng Bi, Min Sun, Shuo Jing, Derui Hou, Wei Zhuang, Sai Chen, Xuwang Jiao, Quanman Zhao
Summary: This study analyzed the interlaminar shear characteristics of a polyurethane mixture composite structure and quantitatively calculated its energy consumption and carbon emissions. The results showed that using appropriate interlayer treatment schemes can improve interlaminar shear strength in different structures. Additionally, compared to Stone Matrix asphalt, the PU mixture exhibited lower energy consumption and carbon emissions, making it an environmentally friendly road pavement material.
Article
Mechanics
A. Maier, N. Schramm, L. Kroll
Summary: This paper investigates the potential of using fiber-reinforced thermoplastic composites in high-volume car body structures and examines the interlaminar shear strength at different temperatures, as well as the influence of manufacturing technology. The results show a significant decrease in interlaminar shear strength with temperature increase, and conditioning has an impact on strength at lower temperatures.
COMPOSITE STRUCTURES
(2021)
Article
Polymer Science
Thiyyanthiruthy Kumbalaparambil Sreethu, Mithun Das, Arshad Rahman Parathodika, Asit Baran Bhattacharya, Kinsuk Naskar
Summary: This study investigates the use of different surface features of ZnO as vulcanization activators in unfilled SBR vulcanizates. The results show that active, functionalized, and nano ZnO can achieve similar mechanical properties and curing characteristics in the SBR matrix compared to conventional ZnO. This also leads to a significant reduction in the amount of ZnO used in rubber vulcanizates.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Qinan Zhou, Luyi Zhu, Chengyu Zheng, Jun Wang
Summary: A novel QCM gas sensor based on WS2/MWCNTs nanocomposite was developed for the detection of low concentrations of TMA gas. The sensor showed faster response time, good selectivity, and stability, with improved detection performance for TMA gas.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Mechanics
Qiuyu Miao, Zhihong Dai, Guangyi Ma, Fangyong Niu, Dongjiang Wu
Summary: The research on the manufacturing of CF/PEEK laminates by laser-assisted forming shows that an increase in consolidation force reduces void content and increases the average ILSS value. Different fracture modes under different consolidation forces affect the formation of voids and the quality of laminates.
COMPOSITE STRUCTURES
(2021)
Article
Polymer Science
Guohua Gao, Min Sun, Chuanchang Xu, Guangzhen Qu, Yaohui Yang
Summary: This study analyzes the interlayer shear characteristics of polyurethane (PU) mixture composite pavement under different conditions. The results show that PU has good durability and mechanical properties, but poor interlayer bonding with asphalt mixtures. The double-layer PU structure exhibits good water-temperature stability and fatigue resistance, but is vulnerable to freeze-thaw and accelerated loading damage. The calculations indicate that temperature has a significant effect on the interlayer shear stress of PU-asphalt composite pavement.
Article
Chemistry, Physical
Wei-Wei Kong, Jun-Feng Shi, Kang-Kang Zou, Nan Li, Yue-Yi Wang, Ding -Xiang Yan, Zhong-Ming Li
Summary: The development of structure-function integrated materials is an important trend in the military field. This study successfully developed a composite material with superior electromagnetic interference shielding property by modifying the resin and carbon fibers.
Article
Agricultural Engineering
Mingyue Li, Haiqing Ren
Summary: This paper explores the influence of different transverse layers on the interlaminar shear performance of CLT. The results show that the interlaminar shear strength of CLT is significantly affected by the type of transverse layer used. The failure modes of interlaminar shear also vary depending on the transverse layer material.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Materials Science, Composites
M. C. C. B. Gomes, L. D. R. Cardoso, D. D. Damm, F. S. Da Silva, E. J. Corat, V. J. Trava-Airoldi
Summary: The study focused on enhancing the interlaminar properties of composites by depositing carbon nanotubes on carbon fiber surfaces. The results showed improved adhesion between carbon fibers and the matrix, leading to increased shear strength and fracture toughness. However, limitations were observed in the fracture toughness analysis due to fragile pathways in intralaminar regions.
COMPOSITE INTERFACES
(2021)
Article
Engineering, Chemical
Jieyun Tu, Xinghui Shi, Yuanrong Jing, Huimin Zou, Jakub Kadlcak, Zhanfu Yong, Susu Liu, Guangyong Liu
Summary: Equilibrium swelling and rheological tests were used to study the effects of softener type and dosage on crosslink densities. Liquid butadiene leads to the greatest reduction in crosslink density, and the dependencies of chemical crosslink density on aging time differ for different softeners. Three different linear relationships can be obtained for the softeners independent of aging time.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Engineering, Environmental
Yingjie Bu, Beom Soo Kim
Summary: In this study, a simple, one-step and eco-friendly approach using coffee waste extract was used to manufacture functionalized few-layer graphene (FFG). Two environmentally friendly methods, bath sonication and shear exfoliation, were compared for exfoliating graphite. The bath sonication method resulted in larger lateral flake size and fewer structural defects, while shear exfoliation achieved a higher FFG concentration and smaller thickness at a shorter exfoliation time. Raman spectra, transmission electron microscopy, and atomic force microscopy confirmed the number of layers of FFG to be in the range of 5-10. Additionally, CuONPs were decorated on the surface of the prepared FFG, which exhibited higher reduction ability, peroxidase mimicking activity, and antibacterial activity compared to CuONPs alone.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Civil
Ozkan Ozbek, Mehmet Bulut, Ahmet Erklig, Omer Yavuz Bozkurt
Summary: This study investigated the interlaminar shear strength (ILSS) of fiber-reinforced hybrid composites with double and triple fiber hybridizations, highlighting the importance of fiber location in determining ILSS and failure mechanism along the out-of-plane direction.
ENGINEERING STRUCTURES
(2022)
Article
Polymer Science
Yupeng Hao, Jakub Kadlcak, Jiayong Xu, Di Wu, Guangyong Liu
Summary: The effect of polyamide elastomer (PAE) on the crosslink network of ethylene propylene diene monomer (EPDM) was investigated through equilibrium swelling method and rheological experiment. PAE was found to decrease the chemical crosslink density and total crosslink degree of EPDM vulcanizate. The physical crosslink degree of EPDM vulcanizates was mainly contributed by the entanglement of rubber macromolecular chains.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Materials Science, Characterization & Testing
Hongbin Li, Yubao Peng, Zhihua Li, Zhuang Jiang, Qiushuang Zhang, Lupeng Wu
Summary: A new stepwise hybrid manufacturing strategy based on plasma-actuating carbon nanotubes is proposed to enhance the interfacial properties of MMWCNTs/PLA nanocomposites. The strategy involves maintaining the functional groups on MMWCNTs while partially destroying them through the thermoelectric coupling field caused by plasma. This leads to the formation of chemical bonds between MMWCNTs and the PLA matrix, creating a stress-transfer bridge and enhancing the interlaminar interface.
Article
Chemistry, Multidisciplinary
Manoj Tripathi, Frank Lee, Antonios Michail, Dimitris Anestopoulos, James G. McHugh, Sean P. Ogilvie, Matthew J. Large, Aline Amorim Graf, Peter J. Lynch, John Parthenios, Konstantinos Papagelis, Soumyabrata Roy, M. A. S. R. Saadi, Muhammad M. Rahman, Nicola Maria Pugno, Alice A. K. King, Pulickel M. Ajayan, Alan B. Dalton
Summary: This study investigates the influence of different geometries of line defects in graphene and molybdenum disulfide using atomic force microscopy and Raman spectroscopic mapping. The stiffness of graphene was found to be higher than molybdenum disulfide, with deflated graphene nanobubbles exhibiting the lowest stiffness. Density functional theory reveals alteration of bandstructures in graphene and MoS2 due to wrinkled structures, showing a higher modulation effect in MoS2.
Article
Chemistry, Physical
Dongyang Zhu, Zhiqi Hu, Tanya K. Rogers, Morgan Barnes, Chia-Ping Tseng, Hao Mei, Lucas M. Sassi, Zhuqing Zhang, Muhammad M. Rahman, Pulickel M. Ajayan, Rafael Verduzco
Summary: This study introduces a novel method for patterning, transferring, and measuring the tensile properties of free-floating nanoscale COF films. The tensile tests of TAPB-PDA COF resulted in a modulus of approximately 1.4 GPa and a fracture strain of 2.5%, demonstrating the potential of COFs for thin-film applications.
CHEMISTRY OF MATERIALS
(2021)
Article
Multidisciplinary Sciences
Seyed Mohammad Sajadi, Livia Vasarhelyi, Reza Mousavi, Amir Hossein Rahmati, Zoltan Konya, Akos Kukovecz, Taib Arif, Tobin Filleter, Robert Vajtai, Peter Boul, Zhenqian Pang, Teng Li, Chandra Sekhar Tiwary, Muhammad M. Rahman, Pulickel M. Ajayan
Summary: The proposed approach externalizes the soft phase by conformal polymer coating over architected ceramic structures, leading to improved compressive strength and toughness. This surface modification strategy provides a simple way to build complex ceramic parts that are far more damage-tolerant than traditional counterparts.
Article
Chemistry, Multidisciplinary
Sandhya Susarla, Govinda Chilkoor, Jawahar R. Kalimuthu, M. A. S. R. Saadi, Yufei Cui, Taib Arif, Thierry Tsafack, Anand B. Puthirath, Pawan Sigdel, Bharat Jasthi, Parambath M. Sudeep, Leiqing Hu, Aly Hassan, Samuel Castro-Pardo, Morgan Barnes, Soumyabrata Roy, Rafael Verduzco, Md Golam Kibria, Tobin Filleter, Haiqing Lin, Santiago D. Solares, Nikhil Koratkar, Venkataramana Gadhamshetty, Muhammad M. Rahman, Pulickel M. Ajayan
Summary: Research shows that a lightweight sulfur-selenium (S-Se) alloy coating can effectively resist steel corrosion in diverse environments, with superior mechanical performance and longevity.
ADVANCED MATERIALS
(2021)
Review
Green & Sustainable Science & Technology
Pranjal Ghosal, Bramha Gupta, Rushikesh S. Ambekar, Muhammad M. Rahman, Pulickel M. Ajayan, Nirupam Aich, Ashok Kumar Gupta, Chandra Sekhar Tiwary
Summary: As the global population grows and water quality becomes a critical issue, water treatment technologies are evolving to address the challenges. 3D printing technology shows great potential for enhancing water treatment efficiency by creating materials with tailored properties.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Review
Chemistry, Multidisciplinary
M. A. S. R. Saadi, Alianna Maguire, Neethu T. Pottackal, Md Shajedul Hoque Thakur, Maruf Md Ikram, A. John Hart, Pulickel M. Ajayan, Muhammad M. Rahman
Summary: Direct ink writing (DIW) is a versatile 3D printing technique that allows printing of a wide range of materials. This comprehensive review explores the process of DIW printing of complex 3D structures and discusses its diverse applications in various industries.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Bhuvan Vemuri, Govinda Chilkoor, Pramod Dhungana, Jamil Islam, Aravind Baride, Nikhil Koratkar, Pulickel M. Ajayan, Muhammad M. Rahman, James D. Hoefelmeyer, Venkataramana Gadhamshetty
Summary: Operating MFCs under extreme pH conditions is challenging, but a pH-universal ORR ink based on hollow nanospheres of manganese oxide (h-Mn3O4) anchored with multiwalled carbon nanotubes (MWCNTs) shows remarkable activity and stability in both acidic and alkaline conditions.
Article
Chemistry, Multidisciplinary
Jamil Islam, Parthiba Karthikeyan Obulisamy, Venkata K. K. Upadhyayula, Alan B. Dalton, Pulickel M. Ajayan, Muhammad M. Rahman, Manoj Tripathi, Rajesh Kumar Sani, Venkataramana Gadhamshetty
Summary: In this study, the use of graphene layers on copper surfaces for microbially driven methanol dehydrogenation to generate DC electricity was investigated. The results showed that the graphene layers significantly improved the power density and current density. This catalyst-free approach has important implications for enhancing the sustainability of fuel cell technologies.
Article
Engineering, Mechanical
Sudheendra Herkal, Muhammad M. Rahman, Satish Nagarajaiah, Vijay Vedhan Jayanthi Harikrishnan, Pulickel Ajayan
Summary: Schwarzites are 3D solids with negative Gaussian curvatures that possess unique mechanical properties such as high ductility and strength. The energy dissipation mechanism of Schwarzites allows for the removal of energy from dynamic systems and reduction of system response. Experimental results show that Schwarzite geometry can increase the damping ratio by almost 80% with the same material volume as a solid support. Additionally, Schwarzites exhibit vibration isolation properties.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Md Abdullah Al Bari, Shariful Kibria Nabil, Shabab Saad, Rahul Sarkar, Sabrina Sabiha, Muhammad M. M. Rahman, Md Golam Kibria
Summary: There is growing interest in using carbon fibers in various applications due to their excellent mechanical, electrical, and thermal properties. Recent studies have identified asphaltene as a promising low-cost precursor for carbon fiber production, potentially accelerating its adoption. Techno-economic and life cycle assessments show that asphaltene-derived carbon fiber production can be cost-effective and offer climate benefits compared to current precursors.
Article
Materials Science, Multidisciplinary
Dongyang Zhu, Qianqian Yan, Yifan Zhu, Xinbo Tong, Alec Ajnsztajn, Muhammad M. Rahman, Pulickel M. Ajayan, Rafael Verduzco
Summary: This study demonstrates that the degree of pore collapse in nanoporous materials COFs can be precisely controlled by using a mixture of high and low surface tension solvents. The study also reveals that pore collapse is an irreversible process, and solvent surface tension is the most important characteristic that governs pore collapse.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Dongyang Zhu, Jun-Jie Zhang, Xiaowei Wu, Qianqian Yan, Fangxin Liu, Yifan Zhu, Xiaodong Gao, Muhammad M. Rahman, Boris Yakobson, Pulickel M. Ajayan, Rafael Verduzco
Summary: The activation stability of covalent organic frameworks (COFs) is crucial for their crystallinity and porosity, but current understanding is limited. This study presents a versatile experimental approach to quantify the activation stability of COFs and demonstrates how it can be systematically tuned using a multivariate synthesis approach. The findings provide novel insights into COF stability and offer guidance for designing more robust COFs.
Article
Chemistry, Multidisciplinary
Muflih A. Adnan, M. A. Khan, Pulickel M. Ajayan, Muhammad M. Rahman, Jinguang Hu, Md Golam Kibria
Summary: The race to decarbonize energy systems has led to technological advancements, with a focus on capturing CO2 from air and converting it into valuable fuels and chemicals. Two transition pathways for sustainable production of methanol were assessed, showing economic viability in jurisdictions with low-cost grid electricity. Technical improvements and cost reductions are necessary for these envisioned air-to-fuel routes to be competitive.
Review
Chemistry, Multidisciplinary
M. A. Khan, Tareq Al-Attas, Soumyabrata Roy, Muhammad M. Rahman, Noreddine Ghaffour, Venkataraman Thangadurai, Stephen Larter, Jinguang Hu, Pulickel M. Ajayan, Md Golam Kibria
Summary: As the price of renewable electricity drops, water electrolysis for hydrogen production is being considered for decarbonization. However, there is currently limited economic and environmental incentive for further research and development in direct seawater electrolysis technology.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Physical
Fanshu Yuan, Devashish Salpekar, Abhijit Baburaj, Anand B. Puthirath, Sakib Hassan, Francisco C. Robles Hernandez, Hossein Robatjazi, M. A. S. R. Saadi, Soumyabrata Roy, Dongping Sun, Nicholas A. Kotov, Muhammad M. Rahman, Pulickel M. Ajayan
Summary: This study presents a novel approach to develop structural monolithic supercapacitors using strong nanofibers for enhanced mechanical and thermal integrity. The new supercapacitors demonstrate a combination of mechanical flexibility, robustness, and thermal stability, addressing long-standing challenges in traditional supercapacitor design. These advancements pave the way for potential applications of structural energy and power systems.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Mechanics
Rawan Aqel, Patrick Severson, Rani Elhajjar
Summary: A novel core splice joint configuration for composite sandwich structures is studied and proposed to improve the strength and toughness. Experimental and numerical efforts show that this configuration can significantly increase the ultimate strength by 13% to 51% and the toughness by 2% to 35%.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xianheng Wang, Cong Chen, Jinsong Zhang, Xinming Qiu
Summary: In this paper, a new form-finding method based on spatial elastica model (FMSE) is proposed for elastic gridshells. The method integrates the deformations of elastic rods into the overall deformation of the gridshell, and solves a set of transcendental equations using the quasi-Newton method to ensure the deformation satisfies the given boundary conditions. The method is validated through experiments and expected to have potential applications in the investigations of elastic gridshells.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Hao Huang, Zitong Guo, Zhongde Shan, Zheng Sun, Jianhua Liu, Dong Wang, Wang Wang, Jiale Liu, Chenchen Tan
Summary: The conventional evaluation of 3D braided composites' mechanical properties through numerical and experimental methodologies hinders material application due to the expenses, time constraints, and laborious efforts involved. This study establishes a multi-scale finite element model and a surrogate model for predicting the elastic properties of 3D4D rotary braided composites with voids. By optimizing a neural network model, the results are validated and provide valuable insights into the microstructure and properties of these composites.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xinyu Li, Hao Zhang, Haiyang Yang, Junrong Luo, Zhongmin Xiao, Hongshuai Lei
Summary: Due to their excellent mechanical properties and design flexibility, fluted-core composite sandwich structures have gained significant attention in aerospace and rail transit applications. This study investigated the free-vibration characteristics and optimized design of composite fluted-core sandwich cylinders through theoretical models and experimental tests.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Chao Li, Chunzheng Duan, Xiaodong Tian, Chao Wang
Summary: A mechanistic model considering the bottom edge cutting effect and the anisotropic characteristics of the material is proposed in this paper to accurately predict cutting forces. The model was validated through a series of milling experiments and can be used to predict the cutting force of various parts of the cutter and any feed direction.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Camila Sanches Schimidt, Leopoldo Pisanelli Rodrigues de Oliveira, Carlos De Marqui Jr
Summary: This work investigates the vibro-acoustic performance of graded piezoelectric metamaterial plates. The study shows that piezoelectric metamaterial plates with reconfigurable properties can provide enhanced vibration and sound power attenuation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jun Ke, Li-jie Liu, Zhen-yu Wu, Zhong-ping Le, Luo Bao, Dong-wei Luo
Summary: Compared with other green natural fibers, ramie has higher mechanical properties and lower cost. In this study, ramie and glass fiber are made into composite circular tubes. The results show that the hybrid circular tube with ramie and glass fiber has improved torsional mechanical properties and reduced weight and cost. The failure mechanisms are affected by the loading direction and the content of each fiber.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Natalia Pingaro, Gabriele Milani
Summary: This paper proposes an enhanced analytical model for predicting the behavior of FRCM samples tested under standard tensile tests. The model takes into account the interaction between fibers and matrix through the interface, and assumes different material properties at different phases. By solving a second order linear differential equation, an analytical solution can be obtained. The model is validated with experimental data and shows good predictability.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jialiang Fan, Anastasios P. Vassilopoulos, Veronique Michaud
Summary: This article investigates the effects of voids, joint geometry, and test conditions on the fracture performance of thick adhesive Double Cantilever Beam (DCB) joints. It concludes that grooved DCB joints with low void content tested at low displacement rates showed stable crack propagation without significant crack path deviation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Auwalu I. Mohammed, Kaarthikeyan Raghupathy, Osvaldo De Victoria Garcia Baltazar, Lawson Onokpasah, Roger Carvalho, Anders Mogensen, Farzaneh Hassani, James Njuguna
Summary: This study investigates the performance of composite pressure vessels under damaged and undamaged conditions, providing insights into their reliability and residual strength capabilities. The results demonstrate that the damage profile and its effect on compressive strength are similar between damaged and non-damaged cylinders. When subjected to quasi-static compression, the polyethylene liner absorbs enough elastic strain energy to recover without plastic deformation. Additionally, quasi-static compression has little to no influence on the axial strength of the cylinders. The damage characterization reveals fiber breakage, delamination, local buckling, and brooming failure. This study has direct implications for the safety design tolerances, manufacturing strategies, and operational failure conditions of composite overwrapped pressure vessels (COPVs).
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Muhammad Irfan Shirazi, Samir Khatir, Djilali Boutchicha, Magd Abdel Wahab
Summary: Structural health monitoring is important to ensure the safety of components and structures. This study proposes a method using finite element models and 1D-CNN network to extract and classify vibration responses for crack detection. The results show that the proposed approach is effective in real-time damage detection.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Maryam Mirsalehi, Kiarash Kianpour, Sharif Shahbeyk, Mohammad Bakhshi
Summary: This study comprehensively investigates the one-way response of 3D-woven sandwich panels (3DWSPs) and their interfering parameters, providing interpretation of elastic and failure results, failure maps, and reliable theoretical models for linear elastic response and observed failure mechanisms.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Yiming Zhao, Zhonggang Wang, Zhigang Yang, Bin Qin
Summary: The paper proposes a Ritz and statistical energy analysis (Ritz SEA) hybrid method for calculating rectangular plate acoustic vibration coupling in the mid-frequency range. This method combines the fast convergence and ability to handle arbitrary boundary conditions of the Ritz method with the power flow equation of the statistical energy analysis method. The results show that this approach effectively filters out random fluctuations in mid-frequency domains while demonstrating exceptional stability and precision.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Joao Henrique Fonseca, Woojung Jang, Dosuck Han, Naksoo Kim, Hyungyil Lee
Summary: This study addresses the enhancement of an injection-molded fiber-reinforced plastic / metal hybrid automotive structure and its plastic injection molding process through the integration of the finite element method, artificial intelligence, and evolutionary search methods. Experimental validation of finite element models, the generation of a database through orthogonal array and Latin hypercube methods, and the training of artificial neural networks are conducted. The genetic optimization algorithm is then applied to identify optimal process parameters. The results show significant reduction in product warpage and manufacturing time while maintaining structural strength, contributing to the advancement of composite automotive structures with superior quality.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Alessandro Vescovini, Carina Xiaochen Li, Javier Paz Mendez, Bo Cheng Jin, Andrea Manes, Chiara Bisagni
Summary: This paper presents a study on six single-stringer specimens manufactured using the card-sliding technique with non-crimp fabrics and adopting a Double-Double (DD) stacking sequence. The specimens were tested under compression loading conditions to investigate post-buckling and failure in aerospace structures. Experimental results and numerical simulations were compared to analyze the behavior and failure modes of the specimens. The study found promising evidence of a viable solution to optimize aeronautical structures and enhance resistance to skin-stringer separation, particularly with the use of tapered flanges.
COMPOSITE STRUCTURES
(2024)
