Article
Engineering, Civil
Jipeng Zhang, Yue Wang, Yang Wen, Xiangjun Dai, Yuan Zhao, Guodong Fang
Summary: This study conducted tests on Glare under different impact energy and built an effective finite element model. The research revealed the contributions of different constituents in the energy absorption aspect and clarified the distributions of energy evolutions in laminate and constituent levels. Furthermore, it elaborated the damage evolutions of individual layers and the failure sequence of the entire laminate.
THIN-WALLED STRUCTURES
(2023)
Article
Mechanics
Yu Gong, Xinjian Chen, Wangchang Li, Libin Zhao, Junan Tao, Jianyu Zhang, Ning Hu
Summary: The effects of stacking sequence on the R-curve and traction-separation relation in unidirectional and multidirectional CFRP DCB laminates were systematically investigated, showing strong influence on fiber bridging length, steady-state fracture toughness, and maximum bridging stress. However, there was no clear relationship between these factors and the stacking sequence. The obtained traction-separation relations were successfully integrated into a tri-linear cohesive zone model and numerical results agreed well with test results, demonstrating applicability for delamination modeling in composite laminates with fiber bridging effects.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Civil
Peifei Xu, Zhengong Zhou, Tianzhen Liu, Shidong Pan, Xiaojun Tan
Summary: The study assesses the damage in single-lap fiber metal laminate joints with various geometries under uniaxial tension, using acoustic emission and digital image correlation to record events and strain fields, with identification based on peak frequencies corresponding to different types of damage. The analysis utilizes Hashin criterion, cohesive constitutive relations, and ductile damage criterion to predict damage evolution in fiber metal laminate.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Mechanical
Shuai Zhu, Wenfei Peng, Yiyu Shao, Shujian Li
Summary: This paper conducted experiments and finite element method (FEM) simulations of high-velocity hail impact on carbon fiber reinforced aluminum alloy laminates (CARALL). CARALL were prepared using an autoclave process after surface anodizing. The hail impact tests were conducted with different impact velocities, impact angles, and ply sequences using a light gas gun. The FEM model of the high-velocity impact was established and verified by comparing with experimental results. The effects of different parameters on the hail impact resistance of CARALL were studied based on energy absorption and internal damage mechanism.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Review
Materials Science, Composites
B. Yelamanchi, E. MacDonald, N. G. Gonzalez-Canche, J. G. Carrillo, P. Cortes
Summary: This study investigates the mechanical properties of additively-manufacturing-enabled FML, which is a structure composed of metal and composite materials. The results show that the FMLs have good adhesion at the metal-composite interface, but limited intralaminar performance. It was also found that the impact performance of the FMLs improved by 9-13% compared to the constituent elements. The study provides an initial research foundation for using 3D printing in the production of hybrid laminates.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2023)
Article
Engineering, Civil
Azadeh Fathi, Gholamhossein Liaghat, Hadi Sabouri
Summary: This study demonstrates that incorporating 0.2 wt% of graphene nanoplatelets significantly improves the impact resistance of fiber metal laminates, enhancing adhesion between resin/fibers and composite plies, reducing damage area, and increasing penetration threshold. Additionally, reinforcing composite panels considerably enhances impact behavior compared to unmodified composites.
THIN-WALLED STRUCTURES
(2021)
Article
Polymer Science
Fengyan Chen, Yong Peng, Xuanzhen Chen, Kui Wang, Zhixiang Liu, Chao Chen
Summary: The study focused on the ballistic resistance of GFRP laminates subjected to high-velocity impact, using a 3D model combining strain rate effect and Hashin failure criterion. Factors such as layer angle, stacking sequence, and proportion of different layer angles were considered, showing that the stacking sequence has a stronger influence on the ballistic resistance. Laminates with layer angles of 0 degrees/90 degrees and +/- 45 degrees demonstrated greater resistance, while adopting an equal proportion of different layer angles is beneficial for impact resistance.
Article
Mechanics
M. Smolnicki, Sz Duda, P. Stabla, T. Osiecki
Summary: This paper analyzes the behavior of fibre metal laminates with unconventional thermoplastic matrices under flexural loading. Experimental tests and numerical simulations are conducted to study the flexural behavior and interlaminar shear stress of two different specimen configurations. The results show differences in behavior and stress distribution between the parallel and perpendicular fiber configurations. The study suggests that the obtained material data can be used for analyzing more complex structures, but additional factors need to be considered for the perpendicular fiber configuration.
COMPOSITE STRUCTURES
(2022)
Article
Mechanics
Florent Grotto, Samuel Rivallant, Christophe Bouvet
Summary: This paper presents the development of a new 3D finite element model for simulating the behavior of unidirectional fiber composites during crushing. The model is validated through comparison with experimental results, showing its accuracy in capturing the crushing behavior.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Composites
Fukai Zhang, Yuan Lin, Jian An Wu, Zhongwei Zhang, Yaxin Huang, Cong Li, Mingyang Wang
Summary: This study investigates the effects of stacking sequence on the low-velocity failure mechanisms and energy dissipation characteristics of carbon fiber reinforced plastics/aluminum hybrid laminates. The results indicate that the plastic deformation of aluminum layers plays a dominant role in energy dissipation. Stacking aluminum layers on the exterior surface can increase absorbed impact energy and reduce fracture behavior.
POLYMER COMPOSITES
(2022)
Article
Mechanics
Ehsan Etemadi, Minglonghai Zhang, Keda Li, Mohammad Bashtani, Danish Tahir, Mabel Mei Po Ho, Hong Hu
Summary: This paper presents a study on 3D novel hybrid auxetic structures made with carbon fiber reinforced polymer (CFRP) laminate composite. The mechanical characteristics of the designed structures, such as Young's modulus, shear modulus, and Poisson's ratio, are evaluated through theoretical analysis and finite element simulation. The results show that the structures have negative Poisson's ratio values in all ranges of design geometry parameters. The optimized geometry parameters are achieved through a multi-objective optimization method based on maximizing stiffness and minimizing relative density responses. Additionally, the mechanical behaviors of the assembled 3D structures are studied through quasi-static compressive tests to measure the negative Poisson's ratio values using strain gauges and a video extensometer. The proposed structures exhibit superior stiffness and high elongation percentage, making them a strong candidate for the next generation of load-bearing auxetic structures.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
Evren Sonat, Sezer Ozerinc
Summary: The study shows that increasing scarf angle reduces the tensile strength of the repaired composite structures, resulting in different types of failure. Finite element analysis using cohesive zone modeling accurately predicts the experimentally observed response, with stress concentration distribution over the bonding area playing a crucial role in determining the failure type. Further investigation reveals that adhesive defects can significantly decrease the strength of the bonded specimens.
COMPOSITE STRUCTURES
(2021)
Article
Multidisciplinary Sciences
Mengyu Jiang, Shijie-Liu, Jiu-mei Xiao
Summary: With the development of the economy, car ownership is increasing day by day. In the context of energy shortage and environmental pollution, it is crucial to study lightweight and ensure car safety. This paper proposes a lightweight fiber metal laminate (FML) with excellent cushioning and energy absorption characteristics for car body by studying the deformation and energy absorption mechanism of ordinary groove plate under flat pressure. Experimental and finite element simulation results prove that this structure has good cushioning energy absorption effect. The M-shaped corrugated core FML with 2.5 mm groove depth has 46.3% of the peak force of traditional trapezoidal corrugated-core FMLs under the same conditions. Additionally, the energy absorption capacity of the M-shaped corrugated core FML with 2 mm groove depth is 1.62 times of that of traditional trapezoidal corrugated-core FMLs before the top plate of sandwich unit touches the bottom plate. The cushioning energy absorption mechanism of M-shaped corrugated core FML is further explained by simulation.
Article
Engineering, Mechanical
Jeffrey M. Staniszewski, Steven E. Boyd, Travis A. Bogetti
Summary: Ultra-high molecular weight polyethylene (UHMWPE) composites are commonly used in protective armor systems, and the design of such systems has traditionally relied on empirical studies, which can be costly and time consuming. A multi-scale, finite element-based representative volume element (RVE) approach has been developed to capture the ply-level material nonlinearity and strain-induced fiber reorientation of UHMWPE composites subjected to low-velocity impact (LVI) loading. This approach accurately predicts the impact performance of UHMWPE composite materials and can be used to evaluate various laminate architectures and processing conditions.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Materials Science, Composites
Jing Ye, Yan Gao, Yushan Wu, Cheng Liu, Jiale Dong, Huan Wang, Bo Su, Hua-Xin Peng
Summary: A new method called nano-scale electrochemical sculpture (NES) has been developed to enhance the bonding strength of fiber metal laminates (FMLs-NES). Through systematic investigation and comparison with traditional surface treatments, it has been found that FMLs-NES exhibits the smallest damage area and energy absorption, while maintaining structural integrity after impact. Finite element simulations have also provided insights into the impact damage progression and failure mechanisms, and the validated finite element model can be used to optimize the stacking sequence and predict residual strength after impact.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
M. Mohamed, F. Taheri
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2017)
Article
Engineering, Mechanical
Zohreh Asaee, Farid Taheri
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Zohreh Asaee, Farid Taheri
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2020)
Article
Engineering, Mechanical
Davide De Cicco, Farid Taheri
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2020)
Article
Engineering, Mechanical
Mbarka Mohamed, Farid Taheri
JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN
(2018)
Article
Chemistry, Multidisciplinary
Davide De Cicco, Farid Taheri
APPLIED SCIENCES-BASEL
(2018)
Article
Metallurgy & Metallurgical Engineering
Davide De Cicco, Farid Taheri
JOURNAL OF MAGNESIUM AND ALLOYS
(2019)
Article
Chemistry, Multidisciplinary
Davide De Cicco, Farid Taheri
Article
Mechanics
Davide De Cicco, Farid Taheri
COMPOSITE STRUCTURES
(2019)
Article
Engineering, Mechanical
B. Soltannia, P. Mertiny, F. Taheri
Summary: The research aims to explore the parameters affecting the frequency response of three-dimensional fiber metal laminates and experimentally investigates the vibration characteristics of different configurations. Results show that adding nanocarbon particles can improve material damping significantly.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Fatemeh Mottaghian, Hessameddin Yaghoobi, Farid Taheri
COMPOSITES PART B-ENGINEERING
(2020)
Article
Engineering, Mechanical
Hessameddin Yaghoobi, Farid Taheri
Summary: The study analyzed the free vibration, buckling, and deformation responses of simply-supported sandwich plates constructed with graphene-reinforced polymer composite face sheets. The temperature-dependent material properties of the face sheets were estimated using a modified micromechanical model, and the governing differential equations were solved analytically. Numerical case studies revealed significant influences of parameters such as core to face sheet thickness ratio, temperature variation, foundation type, and graphene volume fraction on the plate responses.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
B. Soltannia, K. Duke, F. Taheri, P. Mertiny
REVIEWS OF ADHESION AND ADHESIVES
(2020)
Article
Mechanics
Hessameddin Yaghoobi, Farid Taheri
COMPOSITE STRUCTURES
(2020)
Article
Materials Science, Multidisciplinary
Davide De Cicco, Farid Taheri
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)
