Article
Materials Science, Composites
Hon Lam Cheung, Mohsen Mirkhalaf
Summary: The aim of this study is to develop physics-based models and establish a structure-property relationship for short fiber composites. High-fidelity full-field simulations are computationally expensive and time-consuming, so the use of artificial neural networks and transfer learning technique is proposed to solve this issue and improve modeling accuracy and efficiency.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Mechanics
Bin Liu, Fei Li, Yancheng Liu, Yi Zhang
Summary: In this paper, a new conceptual 3D FEPDM (Finite Element - Progressive Damage Method) is proposed to tackle the complex failure characteristics of laminated C/SiC composites. The 3D FE-PDM lies between the macro and meso scales and is validated through experiments on 2D C/SiC and 3D needled C/SiC. The method is able to predict damage initiation, evolution, and load-displacement curve with good convergence for low-velocity impact cases. It offers a solution to the technical challenge of solving complicated mechanics problems.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xianjie Shi, Yong Yang, Xiaolong Zhu, Zhou Huang
Summary: A numerical analysis model is established to predict the stochastic dynamic characteristics of the rocket shell coupling system. The model effectively deals with boundary conditions and assembles sub structures using virtual springs. The energy functional expressions and equivalent dynamic model of the system are derived, and the stochastic dynamic responses are obtained by solving the analytical model with the spectro-geometric method. The proposed equivalent analysis model is verified to be effective by comparing with results from other numerical methods. Additionally, a parametric analysis investigates the influence of core factors on the stochastic dynamic response of the system.
COMPOSITE STRUCTURES
(2024)
Article
Engineering, Manufacturing
Henri Perrin, Regis Vaudemont, Doriane Del Frari, Pierre Verge, Laura Puchot, Masoud Bodaghi
Summary: This study investigates the self-healing capability of a novel bio-based benzoxazine vitrimer composite laminate. The laminate is manufactured using compression resin transfer moulding, and three-point bending tests are conducted to assess interlaminar shear strength (ILSS) and induced damage. Interfacial damages are healed through pressure and temperature. The results show that the composite has highly efficient healing capability, with 80% of the ILSS restored after a 60-minute healing process.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Lan Luo, Zhihong Niu, Rongxiang Hu, Fenghua Zhang, Yanju Liu, Jinsong Leng
Summary: In this study, triple-shape memory polybenzoxazines with high Tg were obtained by copolymerization. Electrically driven composites were prepared using carbon nanotubes, and the SMP electrically driven function was successfully achieved. At high temperatures, the electrically driven shape memory polymer composites showed excellent performance.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Guansong He, Peng Wang, Ruolei Zhong, Xin Li, Huamo Yin, Jie Chen, Shijun Liu, Zhijian Yang
Summary: This study reported a novel multi-scale surface modification strategy for carbon fiber (CFs) to enhance interfacial properties. By combining chemical oxidation treatment and in situ grafting of a high-strength polymer network, the interfacial bonding and mechanical strength of CFs were significantly improved. The strategy achieved high-efficiency mechanical enhancement and thermal conductivity improvement in polymer bonded explosives (PBX). The study has important implications for exploring novel surface modification and has the potential application in high-performance polymer composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Jiangan You, Ling Cai, Ronghua Yu, Haiping Xing, Jian Xue, Ying Li, Zhiwei Jiang, Dongmei Cui, Tao Tang
Summary: In response to the global environmental pollution crisis caused by waste plastics, recyclable design is an effective solution. A CPVC/PUA nanocomposite foam was developed using the plasticizing-foaming-reinforcing strategy, combined with catalytic carbonization. The foam exhibited high expansion ratio, robustness, solvent resistance, flame-triggered shape memory effect, and ablation resistance. The foam could be directly upcycled into functional carbon foam with attractive electromagnetic interference shielding performance.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Siyao Chen, Zhiyu Chen, Yangling Ou, Junwei Lyu, Junning Li, Xiangyang Liu, Yang Liu
Summary: In this study, we demonstrated the significant effect of composite interface on temperature increase in electrical heaters. By selectively fluorinating the outer walls of carbon nanotubes and compositing them with cellulose nanofibers, improved interfacial phonon diffusion was achieved, leading to a higher temperature increase rate.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Peihua Xu, Lida Zhu, Zixu Zhao, Zhichao Yang, Jinsheng Ning, Pengsheng Xue, Hao Lu
Summary: This study investigates the influence of liquid metal volume fraction on ink rheology in liquid metal elastomer composites (LMEC). The results show that the addition of liquid metal droplets increases crack resistance and thermal conductivity in soft elastomers. Furthermore, using direct ink writing (DIW) to print polydimethylsiloxane (PDMS) exhibits significant anisotropy, which is reduced by the addition of liquid metal droplets. Additionally, the stretchability of DIW-ed LMEC decreases with increasing curing temperature and liquid metal droplet size.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yuan Gao, Jiawei Hu, Huaming Wang, Liyue Liu, Lei Li, Sixun Zheng
Summary: In this study, polyethylene/Fe3O4 nanocomposites with excellent mechanical and magnetothermic properties were successfully synthesized using surface-initiated ring-opening metathesis polymerization (SI-ROMP) method.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Biao Cheng, Huafeng Quan, Yuefeng Zhang, Dong Huang, Tongqi Li, Chong Ye, Xingming Zhou, Zhen Fan, Yafang Zhang, Ting Ouyang, Fei Han, Hongbo Liu, Jinshui Liu
Summary: In this study, a binary graphite network was constructed to improve the thermal conductivity and control the formation of micrometer-scale open pores in phase change composites. The developed composites showed a high thermal conductivity and phase change enthalpy, making them promising for thermal control in space optical-mechanical systems and other critical aerospace components.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shihao Zuo, Fei Cheng, Guangming Yang, Jiangzhou Li, Yongjun Deng, Guangjun Gou, Xuejun Cui, Yunsen Hu, Xiaozhi Hu
Summary: Micro-arc oxidation (MAO) treatment was used to modify aluminum (Al) alloys in order to improve bond strength with carbon fiber reinforced polymer (CFRP). The treatment successfully created a porous surface with better hardness, roughness, and wetting, and introduced resin pre-coating (RPC) and carbon nanotube (CNT) fiber bridging to improve the bonding interface. The combined treatments significantly increased the bond strength by up to 156.1%, indicating the feasibility of MAO as an alternative method for manufacturing high-performance Al-CFRP composites in industrial production.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
James Kratz, Christophe Paris, Karolina Gaska, Vincent Maes, Ivana Partridge, Philippe Olivier
Summary: Faster heating rates and higher process temperatures can reduce the total process time while achieving the same degree-of-cure. Thermal analysis shows that thermoplastic interleaf particles melt at the recommended curing temperature. A short dwell at a lower temperature can prevent the mixing of thermoplastic particles and thermoset pre-polymer.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Thomas Maierhofer, Evripides G. Loukaides, Craig Carr, Chiara Bisagni, Richard Butler
Summary: Joining thermoset composites via resistance welding provides an efficient method for aerospace structures with benefits such as high-volume manufacturing and simplified surface preparation. The influence of welding parameters on joint performance is assessed using Mode I fracture toughness testing. A Bayesian approach is employed to select high-performance parameters.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yanjun He, Agnieszka Suliga, Alex Brinkmeyer, Mark Schenk, Ian Hamerton
Summary: A new thermoset resin system based on a polybenzoxazine blend showed good performance under high ATOX irradiation. It reduced erosion yield by forming a silicon-rich surface layer and improved the mechanical properties of CFRP laminates.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xing Zhou, Guosheng Wang, Dexiang Li, Qi Wang, Keming Zhu, Yaya Hao, Yueyang Xu, Neng Li
Summary: This study successfully synthesized polyurethane elastomer by using degraded products from waste PET, and fabricated composites with carbon nanotubes for strain sensors. The composites showed good mechanical and durability performance, indicating a potential method for recycling waste PET into valuable and functional materials.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xiaohua Lv, Yufei Ling, Kaiyou Tang, Changyu Qiao, Lihua Fu, Chuanhui Xu, Baofeng Lin, Yen Wei
Summary: In this study, a new type of hydrogel with high matched skin modulus, strong adhesion, and long-lasting antibacterial properties was developed. The hydrogel maintained high sensing performance even under extreme conditions. This research provides a new approach for the development of next-generation skin-like hydrogel sensors.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
N. Lorenz, P. Hennes, K. Fischer, Ch. Hopmann
Summary: This study aims to understand the formation of surface waviness during cooling and post-curing of GFRP. Experimental and numerical results show that the viscoelastic behavior of the resin plays a crucial role in the formation of surface waviness.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yin Tao, Peishi Yu, Xin Zhang, Maoyang Li, Tao Liu, Junhua Zhao
Summary: This study aims to achieve displacement reconstruction through structure-sensing integration technology. A rapid iterative solution is proposed to cover the entire process from sensor-layout optimization to structure-sensing integrated fabrication then to displacement-reconstruction realization.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shota Kawasaki, Kimiyoshi Naito, Osuke Ishida, Takehiro Shirai, Kiyoshi Uzawa
Summary: This study investigated the temperature distribution during ultrasonic welding of carbon fiber-reinforced polypropylene (CF/PP) using a thermographic camera. Single lap shear tests were performed on the welded joints. The experiments confirmed that the sonotrode amplitude affects the temperature distribution and joint quality, which in turn affects the failure mode. The half-width method was applied to assess the spread of the high-temperature region centered on the welding interface.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
