PSI - Issue 40

S.A. Bochkareva et al. / Procedia Structural Integrity 40 (2022) 61–69 Bochkareva S. A., Panin S. V. / Structural Integrity Procedia 00 (2019) 000 – 000

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properties and thickness of the interlayer, as well as the adhesion level on their fracture mechanism and strength characteristics. It was shown that increasing the adhesion level between CF and PEEK, as well as the number of contacts at the interface, improved the tensile strength of the welded lap joints. This could also be enhanced by reducing both thickness and stiffness of the intermediate layer. It was found that macro- and micro-bending of the samples depended on the thickness of the interlayer and its properties. Both affected the torque magnitude and, accordingly, the stress-strain states of the samples, characterized by the tension, compression, and shear areas. Therefore, tensile tests are insufficient for complete analysis of the strength properties of the UWS welded lap joint of the PEEK plates and it is required to additionally carry out tests according to the three-point bending scheme to assess the effect of the interlayer shear. Acknowledgements This work was supported by the Russian Science Foundation, Grant No. 21-19-00741, https://rscf.ru/project/21 19-00741. References Sackmann, J., Burlage, K., Gerhardy, C., Memering, B., Liao, S., & Schomburg, W. K. 2015. Review on ultrasonic fabrication of polymer micro devices. Ultrasonics 56, 189 – 200. Sánchez - Sánchez, X., Hernández - Avila, M., Elizalde, L. E., Martínez, O., Ferrer, I., & Elías - Zuñiga, A. 2017. Micro injection molding processing of UHMWPE using ultrasonic vibration energy. Materials & Design,132, 1 – 12. Zhao, X., Xiong, D., & Wu, X. 2017. Effects of Surface Oxidation Treatment of Carbon Fibers on Biotribological Properties of CF/PEEK Materials. Journal of Bionic Engineering 14(4), 640 – 647. Zhu, S., Qian, Y., Hassan, E. A. M., Shi, R., Yang, L., Cao, H., Zhou, J., Ge, D., & Yu, M. 2020. Enhanced interfacial interactions by PEEK grafting and coupling of acylated CNT for GF/PEEK composites. Composites Communications 18, 43 – 48. Cole, D. P., Henry, T. C., Gardea, F., & Haynes, R. A. 2017. Interphase mechanical behavior of carbon fiber reinforced polymer exposed to cyclic loading. Composites Science and Technology 151, 202 – 210. Guo, Q., Yao, W., Li, W., & Gupta, N. (2021). Constitutive models for the structural analysis of composite materials for the finite element analysis: A review of recent practices. Composite Structures, 260, 113267. https://doi.org/10.1016/j.compstruct.2020.113267 Chen, Y., Zhao, Z., Li, D., Guo, Z., & Dong, L. 2021. Constitutive modeling for linear viscoelastic fiber-reinforced composites. Composite Structures, 263, 113679. Andraju, L. B., & Raju, G. 2020. Continuum and cohesive zone damage models to study intra/inter-laminar failure of curved composite laminates under four-point bending. Composite Structures 253, 112768. Pérez, M. A., Martínez, X., Oller, S., Gil, L., Rastellini, F., & Flores, F. 2013. Impact damag e prediction in carbon fiber-reinforced laminated composite using the matrix-reinforced mixing theory. Composite Structures 104, 239 – 248. Luccioni, B., & M. 2006. Constitutive Model for Fiber-Reinforced Composite Laminates. Journal of Applied Mechanics 73(6), 901 – 910. Peng, X. Q., & Cao, J. 2005. A continuum mechanics-based non-orthogonal constitutive model for woven composite fabrics. Composites Part A: Applied Science and Manufacturing 36(6), 859 – 874. LLorca, J., González, C., Molina - Aldareguía, J. M., & Lópes, C. S. 2013. Multiscale Modeling of Composites: Toward Virtual Testing … and Beyond. JOM 65(2), 215 – 225. Kosmachev, P. V, Alexenko, V. O., Bochkareva, S. A., & Panin, S. V. 2021. Deformation Behavior and Fracture Patterns of Laminated PEEK- and PI-Based Composites with Various Carbon-Fiber Reinforcement. Polymers 13(14), 2268. Bochkareva, S. A., Panin, S. V., Lyukshin, B. A., Lyukshin, P. A., Grishaeva, N. Y., Matolygina, N. Y., & Aleksenko, V. O. 2020. Simulation of Frictional Wear with Account of Temperature for Polymer Composites. Physical Mesomechanics 23(2), 147 – 159.