Kononova, O.; Krasnikovs, A.; Vavaliya, U.H.; Macanovskis, A.; Lasenko, I.; Kannathasan, K.R.; Jafarli, I.; Novakova, I.; Motlep, R.; Vaishnoras, M. Damage Accumulation in the Hybrid Composite Material Reinforced by Oil Shale Ash (OSA) Powder and 3D-Knitted Fabric Subjected to Mechanical Loading. Preprints2024, 2024021294. https://doi.org/10.20944/preprints202402.1294.v1
APA Style
Kononova, O., Krasnikovs, A., Vavaliya, U.H., Macanovskis, A., Lasenko, I., Kannathasan, K.R., Jafarli, I., Novakova, I., Motlep, R., & Vaishnoras, M. (2024). Damage Accumulation in the Hybrid Composite Material Reinforced by Oil Shale Ash (OSA) Powder and 3D-Knitted Fabric Subjected to Mechanical Loading. Preprints. https://doi.org/10.20944/preprints202402.1294.v1
Chicago/Turabian Style
Kononova, O., Riho Motlep and Mindaugas Vaishnoras. 2024 "Damage Accumulation in the Hybrid Composite Material Reinforced by Oil Shale Ash (OSA) Powder and 3D-Knitted Fabric Subjected to Mechanical Loading" Preprints. https://doi.org/10.20944/preprints202402.1294.v1
Abstract
Hybrid reinforcement in a composite material (CM), in many situations, allows better govern material mechanical properties. Polymer matrix CM plate is reinforced with small particles and macro-fibers. Particles are oil shale ash (OSA) powder, macro-fibers – basalt fiber threads im-pregnated by matrix material. With the goal to find out elastic properties of the matrix- polymer with OSA, samples with its different concentrations were experimentally fabricated and their elastic properties were experimentally measured. Obtained data were used in numerical model-ling. Was observed polymer matrix composite slab, reinforced with OSA and three-dimensional (3D) basalt fiber fabric. Fabric are forming threads impregnated by matrix (polymer resin mixed with OSA particles). Damage accumulation in the stretched slab was modelled. Impregnated thread, in the modelling, is observed as a macro-fiber (MF) with averaged elastic properties. With the load increase MF in the material began to break. At first, appeared isolated single breaks. A probabilistic sequential MF rupture accumulation model was accepted and numerical-ly realized. The geometry of the reinforcing knitted fabric was modeled using the Leaf and Glaskin approach. In the knitted fabric highly, stressed MF cross-sections are observed as po-tential location where thread breakage can occur. If one thread breaks, the cross-sections of the adjacent threads experience the overload caused by this rupture. More overloaded crossection in the adjacent overloaded thread breaks and we obtain two adjacent broken MF designated as a defect with the size j=2. The probabilities of obtaining defect consisting of at least 2, 3, … j adjacent broken MF in the plate were calculated. The calculations continued until the rupture process becomes unstable (j→∞). The overstresses on adjacent threads in the CM were calculat-ed using the FEM three-dimensional numerical approach. Analytical and stochastic methods were used for the load-carrying capacity determination and different size defects accumulation in the hybrid composite material (HCM) plate. Also, was calculated the probability of the plate rupture.
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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