Research into mechanical properties of an ablative composite on a polymer matrix base with aerogel particles

Szczepaniak, Robert; Komorek, A.; Przybyłek, Paweł; Krzyżak, Aneta; Rośkowicz, Marek; Godzimirski, Jan; Pinkiewicz, Ernest; Jaszczak, Wiktor; Kosicka, Ewelina

doi:10.1016/j.compstruct.2021.114855

Cited by 15 publications

(6 citation statements)

References 43 publications

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“…The unique microstructure of the matrix in the CLP specimen leads to a reduction in mechanical properties, 39 making it necessary to consider the matrix filling factor. In addition, the carbonization and oxidation undergone by the specimens after ablation can lead to a decrease in the mechanical properties of the fiber bundles and the matrix.…”

Section: Mechanical Theorymentioning

confidence: 99%

Tensile‐after‐ablation progressive damage and the failure mechanism of 2.5D woven composites with crack pores

Yang,

Dong,

Zhang

2023

Polymer Composites

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Abstract2.5D woven structures are of interest in new thermal protection systems for their excellent interlayer properties and structural stability. In this paper, dense (CDP) and lightweight (CLP) carbon/phenolic 2.5D woven composites were prepared. Quasi‐static tensile experiments were performed on the specimens before ablation (TCDP‐0, TCLP‐0) and after ablation for 30 s (TCDP‐30, TCLP‐30). A quarter macro–meso hybrid model that takes into account the degradation of material properties after ablation and ablative crack pores was innovatively proposed. The predicted tensile elastic modulus is within 9% error from the experimental results. The results show that TCDP‐30 and TCLP‐30 have rapid damage expansion and lethal injury at smaller displacements than the pre‐ablation specimens. The displacement of the maximum load point of TCDP‐30 is 38.7% lower than that of TCLP‐30. The forms of damage in TCDP‐30 are dominated by matrix fragmentation and matrix cracks. The damage forms of TCLP‐30 are dominated by debonding and delamination.Highlights Micro‐CT was used to collect matrix fabrication defects and ablative crack pores defect. A quarter macro–meso hybrid model that takes into account the degradation of material properties after ablation and ablative crack pore was innovatively proposed. The tensile failure mechanism of the material after ablation was revealed by the combination of experiment and numerical method.

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Section: Mechanical Theorymentioning

confidence: 99%

Tensile‐after‐ablation progressive damage and the failure mechanism of 2.5D woven composites with crack pores

Yang,

Dong,

Zhang

2023

Polymer Composites

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“…Moreover, the increased use of composite materials is caused by the possibility of changing their structural properties by adding modifiers to their composition. These modifiers and reinforcing fibers improve the material properties such as density, hardness, impact strength, mechanical and tribological properties, and reduced flammability [13][14][15][16][17]. The results of the research described in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…The research described in Ref. [16] showed that the use of an aerogel additive deteriorated the mechanical properties of the composite in relation to the base material (without the additive). It was also shown that the post-curing temperature changes the mechanical properties of the composite.…”

Section: Introductionmentioning

confidence: 99%

Multiobjective Optimization of Composite Wind Turbine Blade

Jureczko

Mrówka

2022

Materials

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When designing a wind turbine, the main objective is to generate maximum effective power with the lowest possible production costs. The power of a wind turbine depends primarily on the aerodynamic properties of its blades. Moreover, the cost of making a blade for a wind turbine, and therefore also for the entire wind turbine, depends on the materials used for its production. Therefore, wind turbine blades are the most studied element of a wind turbine. By selecting the optimal material and geometric properties of the wind turbine blade, it is possible to reduce the costs of making the entire wind turbine. These rationales led the authors to investigate composite wind turbine blades. A two-criteria optimization task was formulated, which allowed for the simultaneous consideration of two criteria: minimizing the mass and minimizing the vertical deflection of the wind turbine blade. Geometric properties of the blade, influencing the considered criteria, were assumed as decision variables. The weighted sum method was used. The results obtained allowed us to determine the optimal geometric and material properties of a wind turbine blade.

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“…[13,14] In recent years, low density polymer-matrix ablative thermal protection material was studied. [15][16][17] For example, phenolic impregnated carbon ablator (PICA) is a typical lightweight ablative material developed by NASA Ames Research in 1990s. PICA, with low density (0.22 g/cm 3 ), low thermal conductivity and excellent ablation resistance properties, was used as the heat shield of "Stardust" to withstand the maximum temperature of about 1600 C. [18] However, the lightweight composite would be ablated significantly when subjected to long time, oxidative environment.…”

Section: Introductionmentioning

confidence: 99%

Effect of weaving parameter and resin structure of lightweight integrated multifunctional composite on thermal protection performance in extreme environment

Jiang

Wang

et al. 2023

Polymer Composites

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This article reports a novel lightweight integrated multifunctional composite (LIMC) with good thermal ablative and insulating properties for high temperature extreme environment. LIMC, which is an integrated woven carbon fiber preform reinforced phenolic aerogel composites, was prepared using vacuum impregnation and ambient pressure drying. The as-prepared LIMC consisted of a dense surface layer exposed to environment, and a lightweight insulation zone to manage the heat load. The influences of weaving parameter and resin structure of LIMC on thermal protection and insulting performance were investigated. The results demonstrated that LIMC exhibited excellent ablation and insulation properties, and the weaving parameter and resin structure can affect integrated thermal protection and insulating performance. The 3D orthogonal recession layer with dense aerogels can improve the ablation resistance, while the 2.5D layer-layer angle-interlock with light aerogels can increase the insulation behavior of LIMC. The novel LIMC presents wide application prospects in the field of thermal protection and heat insulation.

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Research into mechanical properties of an ablative composite on a polymer matrix base with aerogel particles

Cited by 15 publications

References 43 publications

Tensile‐after‐ablation progressive damage and the failure mechanism of 2.5D woven composites with crack pores

Tensile‐after‐ablation progressive damage and the failure mechanism of 2.5D woven composites with crack pores

Multiobjective Optimization of Composite Wind Turbine Blade

Effect of weaving parameter and resin structure of lightweight integrated multifunctional composite on thermal protection performance in extreme environment

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