Article
Mechanics
Chengjun Zeng, Liwu Liu, Wenfeng Bian, Jinsong Leng, Yanju Liu
Summary: In this study, a 3D printing technology was used to manufacture continuous fiber reinforced composite trapezoidal corrugated sandwich structures with shape memory capability. Theoretical models were developed to analyze bending performance and failure behavior, showing good agreement between predictions and experimental measurements. The 3D printed structures have the potential to provide new opportunities for lightweight systems and multifunctional applications.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Ping Cheng, Kui Wang, Yong Peng, Said Ahzi, Fei Xu, Zhiqiang Huang
Summary: A novel 3D printed continuous ramie fiber reinforced variable stiffness biocomposite honeycomb cellular structure (CF-VSHS) was developed and evaluated. The CF-VSHSs were prepared by using a detachable and recyclable support-assisted printing method to create variable stiffness cellular structures with cells of different dimensions. Compressive tests were conducted to assess the mechanical performance of CF-VSHSs, which effectively filled the performance gap of cellular structures. The energy absorption, initial peak force, stiffness, and other performance indicators of CF-VSHSs were found to be between those of different cellular structures. Furthermore, the failure processes and damage features of 3D printed CF-VSHSs were analyzed to understand their structure-compressive performance relationship.
Article
Engineering, Manufacturing
Chengjun Zeng, Liwu Liu, Wenfeng Bian, Jinsong Leng, Yanju Liu
Summary: This study investigates the compression behavior and energy absorption characteristics of 3D printed CFRCHSs made using FFF technology. The results show that these structures have superior compression strength and specific energy absorption compared to other cellular topologies. Furthermore, shape recovery tests demonstrate their potential for use in lightweight intelligent systems and adjustable energy absorbing devices.
ADDITIVE MANUFACTURING
(2021)
Article
Materials Science, Characterization & Testing
Ben Wang, Yueke Ming, Jin Zhou, Hong Xiao, Feng Wang, Yugang Duan, Zafer Kazanci
Summary: A novel 3D printing method using continuous carbon fiber reinforced thermosetting epoxy composites was proposed to fabricate triangular corrugated structures. The method ensured a strong connection between the corrugated core and the face sheets, and solved the shape retention problem during post-curing. Compressive tests were conducted to evaluate the properties of the printed composites, and the effects of vacuum pressure and cell length on the performance were discussed. The CCF/EP TCS samples showed significantly increased compressive strength, stiffness, and energy absorption abilities compared to other samples. The method demonstrated the capability for fabricating high-performance samples with complex geometries.
Article
Agricultural Engineering
Ping Cheng, Kui Wang, Xuanzhen Chen, Jin Wang, Yong Peng, Said Ahzi, Chao Chen
Summary: This study aimed to investigate the mechanical properties and interfacial analysis of 3D printed continuous vegetal fiber reinforced biomass based composites. The results showed that the mechanical behaviors of the biocomposites were influenced by the interfacial properties between deposited layers and between fiber/matrix interfaces. By controlling the printing parameters, significant microstructure changes were observed in the biocomposites, leading to the highest tensile strength found at specific printing conditions.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Mechanics
Chengjun Zeng, Liwu Liu, Wenfeng Bian, Jinsong Leng, Yanju Liu
Summary: This study examined the temperature-dependent mechanical and shape memory properties of 4D printed CFRCHLS structures. The research found that these structures exhibit temperature-dependent stiffness and peak load, along with shape recovery abilities influenced by geometric configuration. Additionally, multi-step relaxation experiments revealed the relaxation phenomenon of 4D printed CFRCHLS structures at continuous multiple displacements.
COMPOSITE STRUCTURES
(2022)
Article
Mechanics
Hui-Jin Um, Ji-Seok Lee, Ji-Hwan Shin, Hak-Sung Kim
Summary: Sandwich structures with trapezoidal corrugated cores were 3D printed using fused deposition modeling (FDM) method and short and continuous carbon fiber (CF) reinforced nylon filament. The bending characteristics of different core types were investigated through three-point bending (3PB) tests. It was found that the mechanical behavior and failure modes were significantly influenced by core materials and the split number of cores. The corrugated sandwich structure printed using continuous carbon fiber showed dramatic improvements in mechanical performances compared to a PET foam core structure, with 4.1 times higher specific flexural stiffness, 2.6 times larger specific load capability, and 8.6 times larger energy absorption capability. This result was attributed to the precise fiber alignment achievable with continuous CF 3D printing technology.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Manufacturing
Peiqing Liu, Lin Lu, Jikai Liu
Summary: This study developed a design method for shell lattices in CFRC 3D printing, enabling continuous fiber deposition through path planning. The mechanical properties of the lattice were optimized, resulting in improved performance under specific loading conditions. The proposed design method was successfully implemented in CFRC 3D printing.
ADDITIVE MANUFACTURING
(2023)
Article
Engineering, Mechanical
Guangyu Sun, Jin Wang, Kui Wang, Mostafa Baghani, Yong Peng, Yanni Rao
Summary: This study investigates the compressive and shape recovery performance of 3D printed shape memory corrugated tubes (SMCTs). The structures are made from shape memory polymer using fused deposition modeling. The effects of corrugation number and amplitude on crushing and shape recovery behaviors are studied through shape memory experiments. The study finds that the corrugated tubes achieve repeatable compressive and recovery characteristics with stable mechanical properties.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Materials Science, Composites
Ruijun Cai, Hao Lin, Ping Cheng, Zejun Zhang, Kui Wang, Yong Peng, Yuankai Wu, Said Ahzi
Summary: 3D-printed continuous natural fiber reinforced biocomposites have promising prospects due to their environmental friendliness and suitable mechanical properties. In this study, the dynamic mechanical properties of 3D-printed biocomposites were investigated. Different printing parameters were found to have nonlinear and interactive influences on the dynamic strength of the biocomposites. Machine learning models were employed to predict the dynamic strength based on the printing parameters, and good agreement was found between the predictions and experimental results. The relationships between parameters, microstructural characteristics, and dynamic strength of the printed biocomposites were quantitatively analyzed.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Multidisciplinary
Ke Dong, Huizhen Ke, Mahyar Panahi-Sarmad, Tiantian Yang, Xiayan Huang, Xueliang Xiao
Summary: A printing strategy for fabricating diverse geometries of cellular continuous fiber-reinforced composites with uniform fiber distribution and interlacement in the structure was proposed and studied. The effects of printing and structural parameters on mechanical properties and shape memory performance were investigated, and a Finite Element model was developed to analyze the tensile process. Adjustment of geometric parameters and fiber content was found to optimize the mechanical properties and shape memory effect of 3D-printed CFRCs.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Composites
Yaohui Wang, Guoquan Zhang, Huilin Ren, Guang Liu, Yi Xiong
Summary: This study proposed an interlayer-based adaptive process planning strategy for printing joints of continuous fiber reinforced composite lattice structures (CFRCLSs). By comparing with other strategies, the results showed that parts fabricated with this strategy had superior mechanical properties and significantly improved geometric accuracy. Moreover, the effectiveness of the strategy was validated with two representative metamaterial designs.
COMPOSITES COMMUNICATIONS
(2022)
Article
Polymer Science
Daokang Zhang, Xiaoyong Tian, Yanli Zhou, Qingrui Wang, Wanquan Yan, Ali Akmal Zia, Lingling Wu, Dichen Li
Summary: This paper presents the design and fabrication of multilayer truss structures using continuous fiber-reinforced thermoplastic composite 3D printing. The fabricated trusses have high specific stiffness and strength, with the ability to control structural performance through design parameters.
Article
Engineering, Mechanical
Kui Wang, Hao Lin, Antoine Le Duigou, Ruijun Cai, Yangyu Huang, Ping Cheng, Honghao Zhang, Yong Peng
Summary: This study investigates the printability and energy absorption properties of 3D printed continuous fiber reinforced thin-walled structures with different configurations. The structures with high geometric accuracy are successfully fabricated through printing parameters optimization. The study reveals the relationship between structure and mechanical properties through the analysis of failure characteristics and load response.
CHINESE JOURNAL OF MECHANICAL ENGINEERING
(2023)
Article
Mechanics
Yiming Huang, Xiaoyong Tian, Ziqi Zheng, Dichen Li, Andrei V. Malakhov, Alexander N. Polilov
Summary: A multiscale design and manufacturing strategy was developed for continuous fiber reinforced thermoplastic composites (CFRTPCs), which integrated the concurrent optimization of micro fiber orientation and macro structural topology, and realized by ingenious path planning for 3D printing process. The experimental results verified the effectiveness of this strategy, showing significant improvements in structural stiffness and peak load for different scale structures.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Ning Wei, Song Yao, Yanni Rao, Kui Wang, Yong Peng
Summary: This article proposes a novel integrated prediction model to investigate the relationship between the yield strength of material extrusion (ME) additive manufacturing polymers and printing parameters. By estimating the processing related representative volume element (RVE) and applying a multiscale approach, the yield behavior of ME polymers is determined. The validity of the proposed method is confirmed through comparison with experimental data.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Mechanics
Ping Cheng, Yong Peng, Kui Wang, Antoine Le Duigou, Song Yao, Chao Chen
Summary: This study aimed to investigate the penetration behaviors of 3D printed biocomposites with continuous ramie yarn reinforcement. The results showed that the penetration property and energy absorption capability of the samples increased with decreasing support span to indenter diameter ratios (SIR) and with the addition of continuous ramie yarn. The structure-penetration property relationship of the 3D printed woven-like architectured biocomposite was revealed through the analysis of multiscale failure features and penetration damage mechanisms.
COMPOSITE STRUCTURES
(2023)
Review
Engineering, Multidisciplinary
Ping Cheng, Yong Peng, Shixian Li, Yanni Rao, Antoine Le Duigou, Kui Wang, Said Ahzi
Summary: This paper reviewed the state-of-the-art 3D printing CFRSs and elaborated their future perspectives and potential applications. Different existing CFRSs printing techniques were reviewed, and the limitations of current processing methods were discussed in details. The mechanical properties and novel applications in shape morphing and self-monitoring of CFRSs were presented.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Engineering, Industrial
Jiahao Zhou, Zhifa Wu, Chaojie Fan, Tianjian Yu, Shengen Yi, Yunchao Li, Yong Peng
Summary: This study investigated the relationships between vibration, subjective comfort, and train operating parameters through field measurements. It was found that there was a significant correlation between the estimated vibration dose value and subjective comfort. The study also quantified the relationship between vibration magnitude and train speed, as well as tunnel density. A vibration exposure limit corresponding to the boundary between comfort and discomfort was obtained. A prediction method was proposed to calculate the passenger's maximum tolerance time and help alleviate vibration discomfort.
Article
Polymer Science
Kui Wang, Zejun Zhang, Ruijun Cai, Guangyu Sun, Ping Cheng, Yong Peng
Summary: This study investigated the effects of recycling on the mechanical properties of recycled polypropylene (PP)-based composites and aimed to improve the mechanical properties of recycled materials by adjusting the remanufacturing temperature. 3D printing was used as the remanufacturing approach, and the composites were ground and reextruded multiple times to simulate mechanical recycling. The results showed that adjusting the printing temperature improved the mechanical properties of the recycled PP-based composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Wanying Zhu, Shixian Li, Yong Peng, Kui Wang, Said Ahzi
Summary: The mechanical properties of carbon and Kevlar fibers reinforced polyamide composites manufactured by FDM technique were investigated. The effects of fiber orientations, layer locations, and stacking sequences were studied. The results showed that the energy absorption of the composites was influenced by fiber orientations and layer locations. Introduction of 90 degrees continuous layers improved energy absorption capability due to extensive damage of CFRLs. Middle fiber layer locations delayed crack initiation and propagation.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Green & Sustainable Science & Technology
Yuning Qiao, Yong Peng, Ping Cheng, Xuefei Zhou, Fang Wang, Fan Li, Kui Wang, Chao Yu, Honggang Wang
Summary: This study establishes and validates equivalent finite element models of honeycomb structures with the same thickness-to-length ratios, and finds that they have the same mechanical properties and energy absorption characteristics. Moreover, the magnification time is determined through CORA analysis and drop-weight impact tests, and an exponential function for predicting the magnification time is obtained.
Article
Materials Science, Composites
Ping Cheng, Kui Wang, Antoine Le Duigou, Jiachen Liu, Zhixiang Liu, Yong Peng, Said Ahzi
Summary: This study presented a novel dual-nozzle 3D printing method for manufacturing continuous fiber reinforced composite cellular structures (CFRSs). By introducing dual-nozzle modules and corresponding printing paths, the manufacturing speed could be theoretically increased by two times. A typical rhombus filled cellular structure was fabricated using this method. Mechanical tests showed that CFRSs printed using single and dual-nozzle approaches had similar properties, with a difference within 6.0%. Additionally, this multi-nozzle printing technique allowed for the fabrication of complex structures with desired properties, such as multicellular and hybrid fiber structures.
COMPOSITES COMMUNICATIONS
(2023)
Article
Automation & Control Systems
Lin Hou, Yong Peng, Dong Sun
Summary: This study proposes a hybrid framework that incorporates a stochastic approach and an integrated optimization strategy to improve train crashworthiness and reduce passenger crash injuries. The stochastic approach evaluates the statistic characteristics of system responses and quantifies the contribution ranking of uncertain parameters to response variations. The optimization strategy solves the nonuniqueness of Pareto optimal solutions and improves the passive safety of the railway industry.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Review
Materials Science, Composites
Shixian Li, Ping Cheng, Said Ahzi, Yong Peng, Kui Wang, Francisco Chinesta, J. P. M. Correia
Summary: Recently published research indicates that single fiber reinforcements in additive manufacturing can increase some mechanical properties of composites, but also decrease others, limiting their industrial application. As a result, researchers have turned their attention to 3D printed hybrid composites made from combinations of different fiber types, which offer improved overall performance and tailored mechanical behaviors. This paper provides a review of the state-of-the-art 3D printed hybrid composites, discussing their mechanical behaviors, application limitations, potential improvements, and future perspectives. The review begins with an examination of different existing hybrid composite printing methods, followed by a discussion of the mechanical performance, deformation, and failure behaviors of these composites. Finally, the paper explores the limitations of printed hybrid composites and looks forward to advancements in hybrid composites with improved performance.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Ping Cheng, Kui Wang, Yong Peng, Said Ahzi, Fei Xu, Zhiqiang Huang
Summary: A novel 3D printed continuous ramie fiber reinforced variable stiffness biocomposite honeycomb cellular structure (CF-VSHS) was developed and evaluated. The CF-VSHSs were prepared by using a detachable and recyclable support-assisted printing method to create variable stiffness cellular structures with cells of different dimensions. Compressive tests were conducted to assess the mechanical performance of CF-VSHSs, which effectively filled the performance gap of cellular structures. The energy absorption, initial peak force, stiffness, and other performance indicators of CF-VSHSs were found to be between those of different cellular structures. Furthermore, the failure processes and damage features of 3D printed CF-VSHSs were analyzed to understand their structure-compressive performance relationship.
Article
Materials Science, Composites
Ping Cheng, Zezhen Ye, Yangyu Huang, Depeng Wang, Yong Peng, Kui Wang, Said Ahzi
Summary: This paper proposed a novel approach for self-monitoring manufacturing damage in 3D printed continuous carbon fiber reinforced composites. It utilized the Kelvin Four-terminal sensing technique to measure the electrical resistance and investigated the electrical-resistance-based damage self-monitoring behaviors under different printing parameter combinations. The results showed the potential of using this method to quantify manufacturing damage and optimize the printing process.
COMPOSITES COMMUNICATIONS
(2023)
Review
Polymer Science
Ping Cheng, Yong Peng, Kui Wang, Antoine Le Duigou, Said Ahzi
Summary: This article reviewed the advanced techniques for 3D printing CNFRCs and discussed their advancements in mechanical performance and novel functions, as well as the challenges in performance optimization and prediction methods. Finally, it provided a perspective on future research opportunities.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Transportation Science & Technology
Xinkang Li, Fei Peng, Zeyun Yang, Yong Peng, Jiahao Zhou
Summary: This study establishes a general workflow for the structural optimization of a stainless-steel metro bolster using a simulation-driven design method and sub-model technology. The simulation analysis shows that the optimized bolster structure meets the requirements for static strength and fatigue strength, and also achieves significant reductions in weight and weld length.
TRANSPORTATION SAFETY AND ENVIRONMENT
(2023)
