Article
Materials Science, Multidisciplinary
Chaocan Cai, Bo Wang, Weilong Yin, Zhonghai Xu, Rongguo Wang, Xiaodong He
Summary: This work proposes a novel algorithm based on the bionic optimization technology of Cuckoo search algorithm to generate three-dimensional random spatial distribution representative volume elements (RVEs) of composite materials. The algorithm overcomes the limitations of previous approaches and is capable of generating nonuniformly dispersed microstructures with high fiber volume fractions and specified inter-fiber distances. Statistical analysis is conducted to evaluate the generated RVEs, and the results are validated against experimental data. The algorithm is further validated through finite element method and volume homogenization to predict the elastic properties of the RVEs.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Mao-Ken Hsu, Wei Chen, Bo-Yu Huang, Li-Hsuan Shen, Chia-Hsiang Hsu, Rong-Yeu Chang, Chi-Hua Yu
Summary: In response to the global trend of carbon reduction, industries have begun research and production of carbon fiber composite materials. These materials have excellent mechanical properties and can provide weight reduction and energy savings. Weaving patterns determine the mechanical properties of the composite material, and different patterns can be used for different applications. Using simulation analysis software and artificial intelligence technology, we establish a predictive model for the mechanical properties of woven fiber composite materials. This research simplifies complex procedures and offers advantages for industrial manufacturing.
FRONTIERS IN MATERIALS
(2023)
Article
Materials Science, Composites
D. Kempesis, L. Iannucci, K. T. Ramesh, S. Del Rosso, P. T. Curtis, D. Pope, P. W. Duke
Summary: This research develops RVE-based finite element models to investigate the influence of microstructure on the overall mechanical behavior of UHMWPE composites. The models consider the randomness of fiber packing sequence and variations in fiber cross-sectional shape, and analyze the effects of interface properties uncertainties on the mechanical response. By calibrating the constituent properties and validating the models with experimental results, the shear and compression responses of UHMWPE laminates are studied.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Mechanics
Celine Lauff, Matti Schneider, John Montesano, Thomas Boehlke
Summary: We propose an algorithm, the orientation corrected shaking (OCS) method, for generating short fiber-reinforced microstructures with almost planar fiber orientation. The algorithm achieves high accuracy in terms of volume fraction, fiber length distribution, and fiber orientation state. It can also generate microstructures for industrial materials, such as a PA66GF35 material with a volume fraction of 19.3% and an aspect ratio of 33. We extend the two-step shaking algorithm for a user-selected rectangular size of the unit cell and periodic boundary conditions, and improve the precise realization of the fiber orientation state. The OCS method shows representative errors below 2% and 9% for computed directional Young's moduli E1 and E2, respectively, when applied to an industrial PA66GF35 material with a sandwich structure, compared to experimental data.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
Xiao-Ping Zhou, Long-Fei Wang
Summary: The field-enriched finite element method proposed in this study effectively simulates crack propagation in fiber-reinforced composite laminates. The orientation of fibers significantly influences the mechanical behavior of composite laminates.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Mechanical
Chengyu Guan, Zi-Jia Tang, Fei Zhao, Zhiyong Yang, Huimin Li
Summary: A homogenization method is proposed for the vibration analysis of periodic sandwich panels. Periodic boundary conditions are applied to a representative volume element (RVE) and the complex stiffness matrix of the sandwich panels is obtained through direct-solution steady-state dynamic analysis (DSDA) using the finite element method (FEM) in the frequency domain. The natural frequencies, mode shapes, and loss factors of the structures are obtained using shell models based on equivalent single-layer (ESL) theory and finite element-modal strain energy (FE-MSE) method. Pyramidal lattice truss sandwich panels made of carbon fiber reinforced plastics (CFRP) are used to validate the effectiveness of the homogenization method, and the results are compared with experiments and solid models. The effects of the number of cells and damping layers are discussed.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2023)
Article
Engineering, Manufacturing
M. Gljuscic, M. Franulovic, D. Lanc, A. Zerovnik
Summary: The development of additive manufacturing technologies has led to an increase in material variety, particularly by introducing various reinforcements to enhance the mechanical performance of polymers. This study proposes a microscale analysis method based on representative volume element (RVE) models and statistically significant data acquired from microscopic analysis, in order to optimize the microstructure parameters before experimental validation. The results of experimental and numerical tests on carbon fiber reinforced composites were systematically compared with published data, providing guidance for protocol applicability and the need for further improvements.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Composites
Mengran Li, Kai Liu, Jingran Ge, Junbo Xie, Zengfei Liu, Binbin Zhang, Jian Huang, Jun Liang
Summary: This paper presents a novel numerical modeling method for simulating the mechanical behaviors of three-dimensional woven fabric reinforcements. The method utilizes digital element analysis and reconstruction algorithms to generate high-fidelity solid geometric models. A digital-chain tracing method is employed to describe fiber directional orientation within torsional yarns. The proposed method is validated through finite element analysis and in-situ Micro-CT experiments. It provides accurate simulation results and has potential applications in composite design and structure optimization.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Mechanical
S. M. Mirkhalaf, M. Ekh, F. Larsson, M. Fagerstroem, T. J. H. van Beurden
Summary: A new micro-mechanical model is proposed to predict the non-linear elasto-plastic behavior of short fiber reinforced composites. The model is based on a two-step Orientation Averaging method and can accommodate a wide range of micro-structural parameters. Comparisons to experiments and numerical simulations show that the model provides accurate predictions. Additionally, the model is computationally efficient and can be used in applications with different fiber orientations.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Manufacturing
B. A. Castricum, M. Fagerstroem, M. Ekh, F. Larsson, S. M. Mirkhalaf
Summary: A coupled multi-scale model is developed to predict the non-linear elasto-plastic behavior of short fiber reinforced composites. The model incorporates a micro-mechanical model based on a two-step orientation averaging approach at the microscopic level and a Finite Element model at the macroscopic level. The model shows good predictive capability and computational efficiency improvements.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Mechanics
D. Kempesis, L. Iannucci, S. Del Rosso, P. T. Curtis, D. Pope, P. W. Duke
Summary: This paper focuses on the development of a novel research method for studying the micromechanical response of Ultra-high-Molecular-Weight Polyethylene (UHMWPE) composites, through the establishment of a three-dimensional constitutive model and Representative Volume Element (RVE).
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Tolga Topkaya, Yuan Gao, Philippe H. Geubelle
Summary: This study investigates the manufacturing of short-fiber-reinforced polymeric matrix composites based on frontal polymerization (FP) using numerical analysis and analytical predictions. The results show the dependence of the steady-state front velocity and inclination angle on the fiber orientation angle and volume fraction.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Engineering, Mechanical
Tongming Qu, Shaoheng Guan, Y. T. Feng, Gang Ma, Wei Zhou, Jidong Zhao
Summary: This study aims to develop a deep active learning strategy to improve the data-driven constitutive modelling of granular materials. The results confirm the importance of active learning in this field and suggest its potential application in other data-centric applications in various science and engineering fields.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
Article
Materials Science, Multidisciplinary
Wenjun Bai, Yuan Li, Zuer Gong, Jinxiang Liu
Summary: This study presents a new method for generating random fiber arrangements in high fiber volume fractions. Regular arrangements are initially made to ensure accurate fiber volume fraction, followed by applying disturbances to create random arrangements. The randomness of the disturbed fiber arrangement is quantitatively evaluated using image recognition and statistical analysis. The method's efficiency is verified through analysis of modeling time consumption, and its validity is confirmed by comparing the calculated results with tested results.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Composites
Ping Liu, Yucheng Zhong, Qing-Xiang Pei, Viacheslav Sorkin, Yong-Wei Zhang
Summary: Short fiber reinforced thermoplastic composites have gained significant interest for their low density, high strength, environmental resistance, and low cost. Optimizing internal structures to maximize mechanical properties is crucial. Increasing the weight fraction of linkage material can enhance the mechanical properties of SFRTPCs.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Qing-Xiang Pei, Viacheslav Sorkin, Ping Liu, Yucheng Zhong, Warintorn Thitsartarn, Chaobin He, Yong-Wei Zhang
Summary: The mechanical behavior of polypropylene/silica composites under mode I and II loading with two typical surface coupling agents, HMDZ and APTES, was investigated using molecular dynamics simulations. It was found that APTES enhanced the tensile strength effectively under mode I loading, while both HMDZ and APTES enhanced the shear strength under mode II loading, with APTES being more effective. The underlying mechanisms for the enhancement of interface strength were analyzed in the study, providing a deeper understanding for selecting suitable surface coupling agents to enhance the interface strength of polymer composites.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Qing-Xiang Pei, M. H. Jhon, Siu Sin Quek, Zhaoxuan Wu
Summary: This study examined four interatomic potentials developed for the Ti-Al material system and identified their respective strengths and weaknesses in modeling the plastic and fracture properties of the gamma-TiAl and alpha(2)-Ti3Al crystal structures. The results showed that these potentials can accurately reproduce some but not the full scope of the material properties of the crystal structures. One MEAM potential was able to reproduce some properties comparable to DFT-calculated data. Further optimization of the MEAM formalism parameters may lead to better interatomic potentials for the Ti-Al system.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Yan Chen, Huasong Qin, Yilun Liu, Qing-Xiang Pei, Yong-Wei Zhang
Summary: This study investigates the relationship between geometrical parameters and mechanical/thermal properties of coiled carbon nanotubes through modeling and simulations. It is found that the Young's modulus of coiled CNTs increases with coil pitch and CNT radius, but decreases with coil radius. Furthermore, thermal conductivity decreases with coil radius but slightly increases with coil pitch and CNT radius. Valuable insights are provided for the design of coiled CNTs for device applications.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2022)
Article
Mechanics
Jichao Cui, Zhoucheng Su, Weihong Zhang, Dan Wang
Summary: The study focuses on curved stiffener layout optimization for NCGCs with a central cutout to maximize critical buckling load under a given weight constraint. By using a gradient-based optimization algorithm and an improved method CR-GCM, the efficiency and convergence in the optimization process have been better balanced.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Composites
K. Raju, J. Zhi, Z. C. Su, T. E. Tay, V. B. C. Tan
Summary: This paper investigates the non-linear shear and damage behavior of angled ply laminates using the Direct FE2 approach. The FE2 method allows dual scale modeling of composite laminates, providing good predictions at the macroscale while capturing fiber rotation, micro-cracks, and fiber rupture at the microscale. The approach eliminates the need for homogenized laminate and ply-level constitutive properties, requiring only constituent properties as input.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Ping Liu, Yucheng Zhong, Qing-Xiang Pei, Viacheslav Sorkin, Yong-Wei Zhang
Summary: Short fiber reinforced thermoplastic composites have gained significant interest for their low density, high strength, environmental resistance, and low cost. Optimizing internal structures to maximize mechanical properties is crucial. Increasing the weight fraction of linkage material can enhance the mechanical properties of SFRTPCs.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
V Sorkin, Q. X. Pei, P. Liu, W. Thitsartarn, C. B. He, Y. W. Zhang
Summary: The study investigated the effect of functionalized silica nanoparticles on polypropylene composites, and found that PP composites functionalized by OTES have higher ultimate tensile strength. The adhesive energy and interfacial strength of the interphase region play crucial roles in the performance of the reinforced composites.
SCIENTIFIC REPORTS
(2021)
Article
Mathematics, Interdisciplinary Applications
Zhoucheng Su, Dan Wang, Tianfu Guo, N. Sridhar
Summary: This study presents a computational micromechanical analysis of unidirectional carbon fiber-reinforced plastics using representative volume elements. Different stress states were systematically studied, with the conclusion that the failure envelope converges as the fiber volume fraction increases. The developed framework can be extended to conveniently examine the failure criteria for UD CFRP composites comprehensively.
JOURNAL OF MULTISCALE MODELLING
(2021)
Article
Chemistry, Physical
Huasong Qin, Yan Chen, Yanfei Wu, Maoqing Li, Yilun Liu, Qing-Xiang Pei
Summary: This study systematically investigates the thermal transport behaviors of graphene with topological defect-induced wrinkles through nonequilibrium molecular dynamics simulations. It is found that the wrinkled graphene exhibits lower thermal conductivity due to the phonon scattering enhancement caused by topological defects. The thermal conductivity of wrinkled graphene is insensitive to sample size and temperature. These findings provide a theoretical basis for engineering the thermal conductivity of graphene through topological optimization strategies.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Multidisciplinary Sciences
Ping Liu, Qing-Xiang Pei, Yong-Wei Zhang
Summary: This study investigates the failure mechanisms and modes of layered h-BN in nanoelectronic devices through molecular dynamics simulations. The results show that local heat injection and h-BN interaction affect the failure start time and mode. Failure in monolayer h-BN occurs within the layer, while in multiple layers, swelling and pit formation occur. The study also reveals the relationship between beam power and failure modes.
SCIENTIFIC REPORTS
(2022)
Article
Thermodynamics
Yan Chen, Jing Wan, Yang Chen, Huasong Qin, Yilun Liu, Qing-Xiang Pei, Yong-Wei Zhang
Summary: The interlayer thermal resistance (ITR) in multilayer graphene can be effectively controlled by in-plane defects and crosslinks. In-plane defects enhance phonon scattering and increase the ITR, while crosslinks provide a fast phonon transmission pathway and decrease the ITR.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Engineering, Mechanical
Ping Liu, Qing-Xiang Pei, Yong -Wei Zhang
Summary: In this study, molecular dynamics simulations are used to investigate the low-cycle fatigue life and failure mechanism of MoS2 with a crack. It is found that factors such as strain range, strain ratio, initial crack size, and temperature have a negative impact on the fatigue life of MoS2. The study also reveals the detailed fatigue failure process and shows the occurrence of bond rupture and remaking at the crack tips during cyclic loading.
EXTREME MECHANICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Qing-Xiang Pei, Jun-Yan Guo, Ady Suwardi, Gang Zhang
Summary: In this study, the phonon interfacial thermal conductance (ITC) in Bi2Te3/Au and Bi2Te3/Cu was investigated using non-equilibrium molecular dynamics simulations. It was found that the ITC in Bi2Te3/Cu is 3-fold higher than that in Bi2Te3/Au. Both the stronger interfacial van der Waals interaction and phonon coupling were found to contribute to the higher ITC in Bi2Te3/Cu. Furthermore, the ITC of Bi2Te3/Au and Bi2Te3/Cu can be effectively tuned by mechanical strain, with a 0.04 compressive strain leading to a 120% and 62% increase in ITC, respectively.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Physical
Ning Wei, Yang Chen, Kun Cai, Yingyan Zhang, Qingxiang Pei, Jin-Cheng Zheng, Yiu-Wing Mai, Junhua Zhao
Summary: This study systematically investigated the effects of creases on the thermal properties of graphene origami using molecular dynamics simulations. The results showed that tensile strain reduces the interfacial thermal resistance due to the presence of creases. This finding has important implications for the design of next-generation thermal management devices and flexible electronics with tuneable properties.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Chemistry, Physical
K. F. Guo, J. C. Zhang, Z. D. Sha, Q. X. Pei
Summary: This study explores the effect of O doping on Zr-based metallic glasses, revealing that O atoms prefer to bond with Zr atoms and degrade the properties of Zr-lean MGs while having little effect on Zr-rich MGs. The study also shows that the high Zr content weakens the impact of Zr-O bonding, providing insights for designing MGs with low-grade materials.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(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)
