Article
Construction & Building Technology
Pitcha Jongvivatsakul, Chanachai Thongchom, Amaras Mathuros, Tosporn Prasertsri, Musa Adamu, Shanya Orasutthikul, Akhrawat Lenwari, Tawatchai Charainpanitkul
Summary: This study investigates the use of carbon nanotubes (CNTs) as additives to enhance the bonding strength between concrete and carbon fiber reinforced polymer (CFRP). By adding different types and weight percentages of CNTs to epoxy, single-shear tests were conducted to analyze the bonding behavior. The results show that a certain proportion of CNTs modified epoxy can improve the bonding strength and interfacial fracture energy.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Polymer Science
Xinfeng Wu, Yuan Gao, Tao Jiang, Ying Wang, Ke Yang, Tengshi Liu, Kai Sun, Yuantao Zhao, Wenge Li, Jinhong Yu
Summary: The study focused on preparing lightweight aerogel reinforced hollow epoxy macro-spheres and enhancing the strength of epoxy syntactic foam by adding various carbon fiber types. The optimal composition showed improved performance for potential deep-sea applications.
Article
Chemistry, Physical
Lakshmi Joseph, Mini K. Madhavan, Karingamanna Jayanarayanan, Alessandro Pegoretti
Summary: This study addresses the issue of thermal stability in fiber reinforced polymer (FRP) wrapping around concrete columns by modifying epoxy with multiwalled carbon nanotubes (MWCNT) and reinforcing it with basalt and sisal fibers. The results show that the addition of MWCNT substantially enhances the mechanical and thermal durability of the FRP systems. The compressive strength of the FRP-confined specimens is significantly improved, even at elevated temperatures.
Article
Materials Science, Composites
Yu Fu, Hanmo Zhou, Limin Zhou
Summary: This study investigates the influence of liquid phases on the mechanical properties of carbon fiber reinforced composites (CFRP). The research introduces various mass percentages of ionic liquid into epoxy resins to fabricate CFRPs and observes a brittle-ductile transition in the tensile behavior, accompanied by changes in failure mechanisms. Additionally, the study confirms a microstructural transformation and decrease in interfacial bonding strength and effective bonding area with the increase of ionic liquid content.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Polymer Science
Jose Antonio Butenegro, Mohsen Bahrami, Yentl Swolfs, Jan Ivens, Miguel Angel Martinez, Juana Abenojar
Summary: The study focused on the fiber distribution and mechanical, dynamic, and thermomechanical properties of composites manufactured using hot pressing. The viability of recycling and reuse route for preventing the deterioration of carbon fibers by employing polyamides and mechanically recycled carbon fiber-reinforced polymers as reinforcement was illustrated.
Article
Nanoscience & Nanotechnology
Feifei Wang, Junjie Wang, De Fang, Shaofeng Zhou, Jin Huang, Guizhe Zhao, Yaqing Liu
Summary: Carboxylated carbon nanotubes (CNTs) were modified onto the surface of basalt fibers (BFs) using a non-damaging fiber sizing method. The introduction of CNTs improved the interfacial bonding between BFs and the polyamide 6 (PA6) matrix, resulting in enhanced mechanical properties and wear resistance of the BF-reinforced composites. The strategies and research findings provide valuable insights into the development of lightweight and high-strength polymer composites.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Engineering, Multidisciplinary
Na Ning, Ming Wang, Gang Zhou, Yiping Qiu, Yi Wei
Summary: This study focuses on the toughening effect of nanoparticle (NP) on epoxy resins and its transferability to carbon fiber reinforced composites. The results show that core/shell particles, especially with the soft polymer as the core and the rigid polymer as the shell, have a significant enhancement effect. Effective toughening of the composites requires a combination of well dispersed and strong particle-resin and resin matrix-fiber interfaces.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
Chengsen Li, Yuqing Dong, Xiaomin Yuan, Zhijie Qiu, Ye Zhang, Shuhan Yan, Xueping Gao, Bo Zhu
Summary: A simple and continuous method was developed to chemically graft MWCNTs onto CF for improving interlaminar properties of composites. CF/MWCNTs multi-scale reinforcements were successfully prepared through a two-step method based on Diels-Alder reaction, which enhanced the interface between matrix and fibers. ILSS and flexural strength of MSCF/epoxy reinforced composites were significantly improved by 52.84% and 32.32% respectively.
Article
Chemistry, Multidisciplinary
Zhenyu Zhang, Yuefeng Du, Chunhua Zhu, Liangchao Guo, Yao Lu, Jinhong Yu, Ivan P. Parkin, Junhua Zhao, Dongming Guo
Summary: This study developed novel ER/graphene composites, showing that the wear resistance with 5 wt% graphene content was significantly higher than pure ER. The enhancement mechanisms of graphene reinforcement were determined by molecular dynamics simulations.
Article
Construction & Building Technology
Arslan Akbar, V. K. R. Kodur, K. M. Liew
Summary: The study demonstrates that the addition of RCFs can promote the growth of hydration products in cement composites, leading to increased strength without the need for additional chemical reactions.
CEMENT & CONCRETE COMPOSITES
(2021)
Article
Engineering, Civil
Jinlong Yang, Bowen Zeng, Ziyan Hang, Yucheng Fan, Zhi Ni, Chuang Feng, Chuang Liu, Jie Yang
Summary: This study proposes a multimodal machine learning approach to accurately predict the 28-day compressive strength of carbon nanotubes-reinforced cement composites and graphene oxide-reinforced cement composites. The results show that the developed model has great potential and outperforms single-modal machine learning approaches. The proposed model can accurately predict the compressive strength of hybrid materials containing both carbon nanotubes and graphene oxide.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Polymer Science
Hyun-Do Yun, Sun-Hee Kim, Wonchang Choi
Summary: This experimental study investigates the mechanical characteristics of CFRP bars, including their tensile, compressive, and shear strength, as well as modulus of elasticity. Understanding these properties is crucial for analyzing the behavior of concrete structures reinforced with CFRP rebars. The use of a coefficient allows for the prediction of tensile strength based on shear strength. The results confirm that CFRP's tensile strength is influenced by its diameter due to the shear lag effect.
Review
Engineering, Multidisciplinary
Wenqin Han, Jinyu Zhou, Qinghe Shi
Summary: This review summarizes recent advancements in mechanical properties of fiber-reinforced polymer composites using graphene and carbon nanotubes (CNTs). The synthesis methods for incorporating graphene and CNTs into the composites are discussed, along with their effects on interfacial shear strength, interlaminar shear strength, interlaminar fracture toughness, and fatigue characteristics. Various reinforcement mechanisms, including wettability, mechanical interlocking, chemical bonding, and transition layer, are analyzed. The review also covers modeling and analysis tools used for studying these materials, such as molecular dynamics and finite element methods.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Engineering, Mechanical
S. R. Benin, G. Selvakumar, M. Sumathi, Renjin J. Bright
Summary: The study investigated the influence of barite particulate filler on the mechanical behavior of carbon fiber reinforced polymer matrix composites. The addition of 10 wt.% barite particles in the CFRP composites resulted in the best tensile strength, hardness, and impact strength. Additionally, the compressive strength of the CFRP composite with 15 wt.% barite filler was more than twice that of the composite without barite filler.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Mohammad Hamidul Islam, Shaila Afroj, Mohammad Abbas Uddin, Daria Andreeva, Kostya S. Novoselov, Nazmul Karim
Summary: Graphene and carbon nanotubes have shown great potential in enhancing the properties of fiber-reinforced polymer composites. However, the effective incorporation of these carbon nanomaterials without compromising the performance of the composites remains challenging.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Manufacturing
Rushikesh S. Ambekar, Eliezer F. Oliveira, Brijesh Kushwaha, Varinder Pal, Leonardo D. Machado, Seyed Mohammad Sajadi, Ray H. Baughman, Pulickel M. Ajayan, Ajit K. Roy, Douglas S. Galvao, Chandra S. Tiwary
Summary: This study focuses on enhancing the strength of materials by adjusting the topology/geometry, with a specific investigation on the mechanical properties of zeolite-templated carbon nanotube networks. The results show that 3D printed structures are able to withstand high compressive loads without structural failure, making them suitable for ultralight aerospace and automotive parts.
ADDITIVE MANUFACTURING
(2021)
Article
Nanoscience & Nanotechnology
Yue Wang, Zhong Wang, Zhenyong Lu, Monica Jung de Andrade, Shaoli Fang, Zhiqiang Zhang, Jinping Wu, Ray H. Baughman
Summary: Materials that dynamically respond to their environment, especially lotus fiber yarn muscles, provide large tensile and torsional strokes with high work capacity and efficiency, showing great potential for applications in artificial muscles, soft robotics, and smart textiles.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Acoustics
Prashant Kumar, Rammohan Sriramdas, Ali E. Aliev, John B. Blottman, Nathanael K. Mayo, Ray H. Baughman, Shashank Priya
Summary: Carbon nanotube sheets with low heat capacity are used to develop thermoacoustic projectors (TAPs) for a wide range of frequencies. The sound pressure level of CNT-based TAPs is proportional to frequency, but performance decreases at low frequencies, requiring identification of governing parameters to enhance performance. A comprehensive model involving structure-fluid-acoustic interactions sheds light on the behavior of CNT-based TAPs.
JOURNAL OF SOUND AND VIBRATION
(2021)
Article
Automation & Control Systems
Bum-Joon Kim, Yongwoo Jang, Ji Hwan Moon, Ray H. Baughman, Seon Jeong Kim
Summary: The novel accelerometer based on coiled carbon nanotube yarn demonstrates excellent dynamic sensing performance in the low-frequency range and is designed in a compact fiber-like structure for practical applications. Open-circuit voltage signals generated during the stretch-and-release process increase linearly with acceleration, and when attached to a vehicle's seatbelt, the accelerometer generates OCV changes in response to specific acceleration changes.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Enlai Gao, Ruishan Li, Shaoli Fang, Qian Shao, Ray H. Baughman
Summary: This study predicts the fundamental bounds on the in-plane Poisson's ratios and linear and area compressibilities for sheet crystals with anisotropic structures, which are supported by experimental data and computational simulations. The findings establish a range of 2D and 3D sheet crystal materials for special applications that increase density or area, maintain constant density or area, and increase dimension or area under hydrostatic compression.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2021)
Article
Materials Science, Composites
Tanvir Sohail, Sushan Nakarmi, Rebekah Sweat, Ray Baughman, Hongbing Lu, Samit Roy
Summary: The objective of this paper is to predict the fiber/matrix interfacial debond strength in composites. A novel approach using atomic force microscopy and Fourier series-decomposition is presented to determine the surface roughness and interfacial shear strength.
COMPOSITE INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Xinghao Hu, Jingjing Jia, Yingming Wang, Xintian Tang, Shaoli Fang, Yilun Wang, Ray H. Baughman, Jianning Ding
Summary: A fast thermally powered sheath-driven yarn muscle using a hybrid CNT sheath and an inexpensive polymer core has been reported. Compared to traditional muscles, the stroke recovery rate of this yarn muscle is lower, but it has higher mechanical power during the full contraction cycle.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhong Wang, Tae Jin Mun, Fernando M. Machado, Ji Hwan Moon, Shaoli Fang, Ali E. Aliev, Mengmeng Zhang, Wenting Cai, Jiuke Mu, Jae Sang Hyeon, Jong Woo Park, Patrick Conlin, Kyeongjae Cho, Enlai Gao, Gang Wan, Chi Huynh, Anvar A. Zakhidov, Seon Jeong Kim, Ray H. Baughman
Summary: This study improves the performance of twistron harvesters by optimizing the alignment of precursor CNT forests, stretching the precursor twisted yarn, applying higher tensile loads during pre-coiling, using electrothermal pulse annealing, and incorporating reduced graphene oxide nanoplates. The peak output power is significantly increased at both 1 Hz and 30 Hz frequencies, with the latter achieving a 13-fold improvement compared to previous harvesters. The maximum energy conversion efficiency is also greatly improved. Twistron anode and cathode yarn arrays are stretched out-of-phase to double the output voltage.
ADVANCED MATERIALS
(2022)
Article
Acoustics
Ali E. Aliev, David H. Mueller, Kylie N. Tacker, Nathanael K. Mayo, John B. Blottman, Shashank Priya, Ray H. Baughman
Summary: This study addresses the problem of coupled panel-cavity vibrations in high power, low frequency, encapsulated thermoacoustic sound projectors. By using scanning laser vibrometry and sound pressure measurements, the resonance modes in these projectors were studied. The results showed a deviation from theoretical predictions, which were attributed to the coupled panel-cavity modes produced by varying pressure within the cavity. The effect of plate and cavity thickness on the projector performance was also analyzed.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Physics, Applied
Enlai Gao, Xiaoang Yuan, Steven O. Nielsen, Ray H. Baughman
Summary: In this study, theoretical expressions for predicting the upper bounds of Young's modulus and gravimetric Young's modulus were developed and verified through experiments. Additionally, the application of lateral pressure on carbyne crystals showed that the calculated values were close to the predicted bounds.
PHYSICAL REVIEW APPLIED
(2022)
Article
Chemistry, Multidisciplinary
Victor G. Desyatkin, William B. Martin, Ali E. Aliev, Nathaniel E. Chapman, Alexandre F. Fonseca, Douglas S. Galvao, Ericka Roy Miller, Kevin H. Stone, Zhong Wang, Dante Zakhidov, F. Ted Limpoco, Sarah R. Almahdali, Shane M. Parker, Ray H. Baughman, Valentin O. Rodionov
Summary: In this study, multilayer gamma-Graphyne was synthesized through crystallization-assisted irreversible cross-coupling polymerization and comprehensively characterized. Experimental results showed that gamma-Graphyne is a 0.48 eV band gap semiconductor with a specific crystal structure. The reported methodology is scalable and applicable to other allotropes of the graphyne family.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Xiaoyu Hu, Jiatian Li, Sitong Li, Guanghao Zhang, Run Wang, Zhongsheng Liu, Mengmeng Chen, Wenqian He, Kaiqing Yu, Wenzhong Zhai, Weiqiang Zhao, Abdul Qadeer Khan, Shaoli Fang, Ray H. Baughman, Xiang Zhou, Zunfeng Liu
Summary: This paper reports an artificial muscle controlled by thermodynamic-twist coupling, which can be used in different actuation modes, such as elongation, contraction, and torsional rotation. It provides a new design strategy for intelligent materials.
NATIONAL SCIENCE REVIEW
(2023)
Article
Materials Science, Composites
Zhong Wang, Ray H. Baughman
Summary: This overview discusses the use of twisted yarns and highly elastic coiled yarns for various applications such as artificial muscles, energy harvesting, sensing, and refrigeration. The fabrication methods for coiled carbon nanotube and polymer yarns are similar, and their properties can be manipulated to achieve elasticity, actuation, cooling, energy harvesting, and sensing capabilities. The performance of these yarns is remarkable, including artificial muscles with significantly higher power output than human muscles, and mechanical energy harvesters providing higher peak electrical power per weight than existing material-based energy harvesters.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Article
Materials Science, Composites
Tanvir Sohail, Rebekah Sweat, Hongbing Lu, Ray Baughman, Samit Roy
Summary: This paper develops a novel approach to determine the fiber/matrix interfacial shear strength (IFSS) in a polymer composite with carbon fiber roughness and the presence of carbon nanotubes (CNTs). The carbon fiber surface exhibits multi-scale asperities, which are modeled using Fourier series decomposition to capture surface roughness. Molecular Dynamics (MD) simulations are used to determine the interfacial shear strength of different surface asperities. The results show that the presence of CNTs enhances the IFSS by about 19%.
COMPOSITE INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Enlai Gao, Yongzhe Guo, Zhengzhi Wang, Steven O. Nielsen, Ray H. Baughman
Summary: In this study, the stability, strength, and toughness of B, C, BC, and BN chains were investigated using first-principles calculations. It was found that BC chains exhibited the highest recorded gravimetric strength and high toughness, surpassing the predicted performance of carbyne.
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)