Article
Engineering, Manufacturing
M. G. Collinson, T. J. Swait, M. P. Bower, B. Nuhiji, S. A. Hayes
Summary: This study investigates the use of direct electric cure (DEC) method to efficiently and effectively cure aerospace composites. The DEC method offers benefits such as energy efficiency, control over cure temperature, and low void content. Results showed that DEC curing significantly reduced energy consumption and void content compared to traditional oven curing methods.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Mechanics
Sumeru Nayak, Sumanta Das
Summary: This paper evaluates the strain-sensing ability of a nanoengineered hierarchical twill weave composite using multiscale numerical simulations, demonstrating excellent correlation with experimental observations. The methodology captures hierarchical intricacies at multiple length scales and implements various mechanical damage mechanisms and subsequent electrical responses to yield macroscopic electromechanical response. The detailed multiscale approach can provide valuable insights towards efficient design of smart woven laminated composites.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Zheng-Qiang Cheng, Wei Tan, Jun-Jiang Xiong
Summary: A fatigue-driven residual strength model considering the effects of low-velocity impact (LVI) damage and stress ratio was developed in this paper. New fatigue failure criteria were proposed based on this model, which can simulate fatigue damage growth and predict fatigue life for composite laminates with LVI damage. Experimental results showed that LVI damage degrades fatigue strength drastically and the load history plays an important role in fatigue accumulation damage for post-impact laminates.
COMPOSITE STRUCTURES
(2021)
Article
Construction & Building Technology
Miaomiao Duan, Zhufeng Yue, Qianguang Song
Summary: The effect of scratch damage on the tension properties of carbon fiber plain weave laminates was studied using digital image correlation and acoustic emission. Superficial scratches have little effect on laminate strength when the scratch length is less than 80% of the specimen width. The distribution of strain near the scratch is affected, but the samples do not always break at the scratch site.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Materials Science, Characterization & Testing
Osamu Saito, Enhi Sen, Yoji Okabe
Summary: In this study, a promising and effective method was proposed for nondestructive inspection of carbon fiber reinforced plastic (CFRP) structures by visualizing the propagation of Lamb waves generated by scanning laser injection. Two-dimensional time-slowness maps were used to detect defects in CFRP laminates, showing that artificial delamination can be clearly observed in the slowness map. The dispersion of the lowest antisymmetric (A0) mode of the Lamb wave was found to be the cause of the visible hotspot. The method was also demonstrated to be applicable to L-shaped structures, highlighting the potential for practical inspection methods based on laser ultrasonic waves.
NDT & E INTERNATIONAL
(2022)
Article
Construction & Building Technology
Muazzam Ghous Sohail, Nasser Al Nuaimi, Rami A. Hawileh, Jamal A. Abdalla, Kais Douier
Summary: The study found that in severe environments, galvanized steel mesh (GSM) strengthening systems demonstrated excellent bond durability with cohesive failure, while carbon fiber-reinforced polymer (CFRP) composites changed failure mode to pure adhesive fracture after exposure to saline water and sunlight, with almost no loss in bond strength.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Jiraphant Srisuriyachot, Jean Benezech, Guillaume Couegnat, Sophie A. M. McNair, Thomas Maierhofer, Richard Butler, Alexander J. G. Lunt
Summary: This paper presents the first study on in-situ pure compressive kink-band failure in Uni-Directional Carbon Fibre-Reinforced Polymer composites (UD-CFRPs) with a notch using synchrotron micro-Computed Tomography (micro-CT). The study compares the failure behavior of baseline samples with defect-rich samples containing micro-defects such as voids and fiber misalignment. The results reveal changes in fiber orientation and localized strain, and show that the defect-rich samples form narrower conjugate kink bands inclined at 45 degrees.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Mechanics
Changzhi Hu, Lin Sang, Kai Jiang, Jianing Xing, Wenbin Hou
Summary: The study investigated the mechanical performance and failure mechanisms of Carbon fiber-reinforced epoxy/ Aluminum Laminates (CARALL) under different stacking sequences, showing that 3/2 FMLs achieved higher stiffness and strength. Increasing metal volume fraction weakened bending properties.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Composites
Claudia Barile, Vimalathithan Paramsamy Kannan, Alessandro Locasale, Caterina Casavola
Summary: The in-plane and interlaminar characteristics of plain weave fabric carbon fiber reinforced polymer (CFRP) composites were investigated, as well as their response to temperature exposures. The in-plane shear properties, including shear strength and shear modulus, were significantly influenced by temperature exposure, with a 44.36% decrease in in-plane shear strength observed at 120 degrees Celsius compared to room temperature. However, the interlaminar shear strength was largely unaffected by temperature exposure. The interlaminar shear strength of plain weave fabric CFRP primarily depended on the cross-sectional area of the specimen rather than temperature exposure. Various prediction models were used to estimate the shear properties of composites subjected to different temperatures, with the Hawileh model fitting the experimental data well for predicting in-plane shear strength and the Wang model fitting well for shear modulus. Furthermore, the fracture surfaces of in-plane and interlaminar shear specimens were characterized under optical microscopy to understand the failure modes and their relationship to temperature exposures.
APPLIED COMPOSITE MATERIALS
(2023)
Article
Engineering, Mechanical
Faramarz Bagherzadeh, Torkan Shafighfard, Raja Muhammad Awais Khan, Piotr Szczuko, Magdalena Mieloszyk
Summary: This study used different machine learning tools to predict the maximum tensile stress of composite materials and achieved a highly accurate model. The model, trained using various algorithms, showed that the combination of Gradient Boosting Regression (GBR), PolyFeatures, and LassoLarsCV algorithms performed the best. This model can provide accurate predictions in terms of materials and geometry.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Materials Science, Composites
Wenchao Huang, Changyou Li, Liyang Xie, Dawei Jia, Bao Chai, Hongzhuang Zhang, Ying Gao
Summary: This paper presents a detailed study on the compression after impact (CAI) behavior of hygrothermal aged T300 985LV carbon/epoxy composites through experimental and numerical investigations. The effects of hygrothermal environments on CAI strength are analyzed, and a numerical model is established and validated. The results provide useful insights for the design and application of civil aircraft.
POLYMER COMPOSITES
(2022)
Article
Construction & Building Technology
Thang Do-Dai, Tu Chu-Van, Duong T. Tran, Ayman Y. Nassif, Long Nguyen-Minh
Summary: This paper investigated the effect of reinforcement corrosion level on the deformability and flexural strengthening performance of CFRP and BFRP sheets on RC beams. The test results showed that the laminates significantly reduced crack width and improved flexural resistance. The increase in strengthening effectiveness was more pronounced with a higher reinforcement corrosion level.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Materials Science, Composites
Tianyu Fu, Jiazhong Xu, Zhao Hui
Summary: Electromagnetic induction can rapidly heat carbon fiber reinforced polymer composite (CFRP) materials, but the structure, heat transfer anisotropy, and electromagnetic-eddy current coupling affect the curing temperature distribution and quality. By establishing a multi-field coupling analysis model, the coupling and distribution rules of the electromagnetic-eddy current field during heating are studied, and the heating history and temperature distribution of the materials are analyzed. The correctness of the finite element mesoscopic model is verified through experiments, providing an analysis model to achieve curing and molding of plain weave CFRP.
APPLIED COMPOSITE MATERIALS
(2021)
Article
Chemistry, Physical
Hang Cheng, Zhiqiang Zhang, Mingwen Ren, Hongjie Jia
Summary: This paper investigates the bending springback behavior of metal/CFRP laminates and determines the optimal curing conditions through experiments and numerical simulations. The results show that the fiber lay-up and metal layer thickness have significant effects on bending springback, while forming speed has a minor influence.
Article
Engineering, Manufacturing
Kota Takamoto, Toshio Ogasawara, Hiroki Kodama, Tomoisa Mikami, Sota Oshima, Kazuyuki Aoki, Ryo Higuchi, Tomohiro Yokozeki
Summary: This study investigates the effects of layer thickness and stacking sequence on the open-hole compressive strength of thin-ply CFRP laminates through experiments and finite element analyses, demonstrating the effectiveness of the numerical model in predicting the strength.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Materials Science, Multidisciplinary
Fuwei Gu, Liang Chen, Xiaolei Zhu, Xiaofeng Lu, Daining Fang
Summary: The study experimentally tested the damage and failure modes of composite corrugated sandwich cylindrical shells in quasi-static uniaxial compression tests, and applied an equivalent monocoque shell theory to predict multi-mode failure.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Chemistry, Multidisciplinary
Xiaolei Zhu, Yangen Huang, Xiuhua Xu, Fengling Qing
Summary: An iron-catalyzed coupling reaction between difluoroenol silyl ethers and cyclobutanone oxime esters has been described, providing a convenient access to various gem-difluoromethylenated ketonitriles in moderate to good yields. The transformations of the resulting products to other fluorine-containing compounds are also documented.
CHINESE CHEMICAL LETTERS
(2022)
Article
Materials Science, Multidisciplinary
P. Wang, K. F. Wang, B. L. Wang, L. Xi, K. Sano, T. Shimada, H. Hirakata, D. N. Fang
Summary: This study aims to stably and accurately measure the interlaminar fracture toughness (IFT) of multilayered Bi2Te3 for evaluating the reliability of its thermoelectric devices. By developing a tapered cantilever bending (TCB) experiment, the measurement of IFT for Bi2Te3 was successfully achieved, providing a new method for assessing multilayered materials.
EXPERIMENTAL MECHANICS
(2022)
Article
Mechanics
Dong Wu, Zeang Zhao, Hongshuai Lei, Hao-Sen Chen, Qiang Zhang, Panding Wang, Daining Fang
Summary: Natural tissues can self-strengthen through biological growth, while synthetic materials are typically static. The concept of bio-inspired materials aims to develop materials with dynamically programmable performances. A solvent-free elastomer composite system is proposed in this study, which can be strengthened through tunable self-growth cycles and is compatible with Digital Light Processing (DLP) 3D printing for fast manufacturing of high-precision structures.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Dong Wu, Yixing Huang, Qiang Zhang, Yongmao Pei, Zeang Zhao, Daining Fang
Summary: The critical condition for the onset of surface instability during the photopolymerization process and the factors affecting wrinkling initiation in photopolymerizing condition were investigated experimentally and theoretically. It was found that the critical time and critical wavelength for wrinkling initiation can be predicted by the developed model. The curing conditions, including irradiation intensity and photoinitiator concentration, significantly influenced the critical time, while the mechanical properties of the material mainly affected the critical wavelength. The findings provide guiding principles for controlling surface morphology in photopolymerization-based designing and manufacturing.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2022)
Article
Engineering, Manufacturing
Heng Yang, Wenfeng Wang, Chuanlei Li, Junfeng Qi, Panding Wang, Hongshuai Lei, Daining Fang
Summary: Complex thermal processing during laser powder bed fusion (L-PBF) can lead to defects that affect the mechanical response of components. This paper proposes a deep learning-based image preprocessing method to remove adhered particles from lattice structures, enabling high-precision reconstruction and simulation prediction.
ADDITIVE MANUFACTURING
(2022)
Article
Optics
Fangxin Yue, Junxuan Zhang, Jie Meng, Ting Yu, Decang Bi, Xiaolei Zhu, Jiqiao Liu, Weibiao Chen
Summary: In this paper, a diode side-pumped injection-seeded single-frequency Tm,Ho:YLF laser operating at lasing threshold and emitting at 2051.2 nm was reported. The use of Fabry-Perot (FP) etalons for seed injection via mode selection was investigated. The laser achieved an acousto-optic Q-switched output of 6.7 mJ at 5 Hz, with a temporal pulse duration of 310 ns, spectral linewidth of 2.0 MHz, and frequency stability of 0.8 MHz rms. The laser source with a high-quality Gaussian TEM00 mode would be suitable for ground-based wind-detection coherent Lidar system.
APPLIED PHYSICS B-LASERS AND OPTICS
(2023)
Article
Optics
Yuan Zhao, Lucheng Yuan, Chunhui Fan, Xiaopeng Zhu, Jiqiao Liu, Bo Dai, Weigang Xiao, Xiaolei Zhu, Weibiao Chen
Summary: The method of the maximum function of accumulated spectra based on the genetic algorithm is applied for the first time to three-dimensional wind field retrieval by Doppler wind lidar on an airborne platform. The algorithm can directly obtain the 3D wind field from the origin spectra of different directions, regardless of the radial wind velocity inversion accuracy. The genetic algorithm shows higher accuracy compared to the least square method.
APPLIED PHYSICS B-LASERS AND OPTICS
(2023)
Article
Materials Science, Multidisciplinary
Yang Liu, Shaohua Li, Mingxuan Li, Qingsheng Li, Xiaofeng Lu, Xiaolei Zhu
Summary: This study investigated the geometric morphologies, microstructure, and porosity of aluminum alloys laser welding joints (ALWJ) using tests such as optical microscope (OM) and computed tomography (CT). The mechanical properties were evaluated through tensile tests and finite element simulation. A prediction model considering geometry and porosity was proposed to forecast the ultimate strength of ALWJ. The results revealed that the geometries were significantly influenced by the welding process, especially the penetration depth, which increased with higher heat input and improved mechanical strength. However, higher heat input also led to more pores due to burning damage of the magnesium (Mg) element, negatively affecting the mechanical strength. The developed strength prediction model demonstrated accuracy and reliability, with a prediction error within 15%.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Jian Wang, Kai Zhu, Weichen Zhang, Xiaolei Zhu, Xiaofeng Lu
Summary: The development of wire arc additive manufacturing (WAAM) provides a new solution for manufacturing aluminum alloy (AA) components used in lightweight mobile heat storage equipment. Adjusting the deposition angle between layers can enhance the microstructure and mechanical properties of the WAAM AA5356 component.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Plant Sciences
Xiaolei Zhu, Jie Wang, Yi Fu, Aizhu Zhou, Menglu Ye, Muhammad Waheed Riaz, Bingcong Xing, Qingsong Shao
Summary: Bletilla striata, a plant with various ethnopharmacological uses, has been widely used in the treatment of hemorrhagic diseases and beauty care. It is rich in polysaccharides, which have anti-aging, whitening, and antioxidation functions, making it widely used in the cosmetics industry. The HL20 strain of B. striata has shown superior whitening and antimicrobial activity compared to the WT strain.
JOURNAL OF ETHNOPHARMACOLOGY
(2023)
Article
Optics
Guangli Yu, Jianyong Ding, Chunqi Fang, Binbin Li, Yong Qian, Jun Zhou, Weibiao Chen, Xiaolei Zhu
Summary: A high repetition rate, high peak power, narrow linewidth nanosecond 589 nm laser was demonstrated based on sum-frequency generation (SFG) of 1064 nm and 1319 nm lasers. By amplifying the externally modulated 1064 nm laser and employing ramp-hold-fire detection and dual piezoelectric ceramic (PZT) feedback, a stable and adjustable laser output with pulse energy of 20 mJ at 500 Hz repetition rate was achieved. Finally, by sum-frequency of the 1064 nm and 1319 nm lasers, a highly efficient 589.1595 nm laser with pulse energy of 10.4 mJ and pulse duration of 62 ns was generated.
OPTICS COMMUNICATIONS
(2023)
Article
Oncology
Rong Wang, Yihan Hou, Guojun Geng, Xiaolei Zhu, Zhilin Wang, Weifeng Cai, Juanping Ye, Senxia Zhao, Yanjun Mi, Jie Jiang
Summary: In this study, the role of PLK1 in LUAD was comprehensively investigated. The results showed that onvansertib significantly induced apoptosis, inhibited proliferation and migration of LUAD cells. Additionally, onvansertib regulated intracellular events and improved cisplatin resistance in LUAD.
AMERICAN JOURNAL OF CANCER RESEARCH
(2023)
Article
Optics
Ma Jian, Zhu Xiaolei, Lu Tingting, Ma Haoda
Summary: This paper reviews the current development status of blue pulsed lasers and provides a detailed introduction to the recent research on blue pulsed lasers emitting at the Fraunhofer line of 486.1 nm, focusing on two application scenarios: high repetition rate and multiple wavelengths, and high energy and high peak power.
ACTA OPTICA SINICA
(2022)
Article
Multidisciplinary Sciences
Handong Jiao, Zhaoliang Qu, Shuqiang Jiao, Yang Gao, Shijie Li, Wei-Li Song, Haosen Chen, Hongmin Zhu, Rongqi Zhu, Daining Fang
Summary: High-temperature electrochemistry is widely used but real-time observations and in-depth understanding of its evolution are limited. In this study, a high-temperature electrolysis facility with in situ x-ray computer microtomography was developed to probe the dynamic evolution of electrodes. The results provide insights into the efficiency and mechanisms of the process, as well as real-time optimization.
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)
