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

Jiang, Zuhang; Wang, Tongkai; Li, Weijie; Zhang, Zhongwei

doi:10.1002/pc.27416

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…The cross-section of the established parametric unit-cell model is shown in Figure 2B, where the geometric parameters of the unit-cell are calculated using Equations (1)(2)(3)(4)(5)(6)(7)(8).…”

Section: Statistical Analysis Of Yarnsmentioning

confidence: 99%

“…[1][2][3][4][5] Recently, carbon fiber/phenolic laminated composites are an important candidate material for TPS. [6][7][8] However, one of the key challenges is that limited by the interfacial delamination, which especially results in the ablation spalling and influences the final strength. [9][10][11] At present, 2.5D woven structure is recognized as an effective method to meet the extreme environment.…”

Section: Introductionmentioning

confidence: 99%

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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: Statistical Analysis Of Yarnsmentioning

confidence: 99%

Section: Introductionmentioning

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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“…[19][20][21] Numerous researchers have demonstrated that the physical compounding of carbon fiber fabric (CF) and PRAs matrix strengthens the mechanical and ablation resistance properties of the composites. [22][23][24][25] Therefore, the development of synergistic reinforced composites based on ceramizable PRA matrixes is expected to achieve good ablation resistance and thermal insulation at high-temperature extremes.…”

mentioning

confidence: 99%

Mechanical properties and oxidative ablation behaviors of polysilazane‐modified phenolic resin aerogel/carbon fiber fabric composites

You,

Liu,

Zhong

et al. 2023

Polymer Composites

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Nanoporous composites have been extensively applied in aerospace applications for their outstanding thermal insulation and ablation resistance. A ceramizable polysilazane (PSZ)‐modified phenolic resin (PSZ‐PR)/carbon fiber fabric (PSZ‐PR/CF) aerogel composite was synthesized through ambient pressure drying (APD). The homogeneous nanopore structure and improved thermal stability of the PSZ‐PR aerogel matrix provided the composites with good performance (thermal conductivity as low as 0.126 W/(m·K)). The PSZ‐PR/CF composites achieved high compressive strength (up to 43.75 MPa), tensile strength (59.22–124.75 MPa), and bending strength (23.35–97.94 MPa). Furthermore, the generation of ceramization products during the oxyacetylene flame ablation process, specifically SiC and Si3N4, enhanced the ablation resistance of PSZ‐PR/CF composites: the linear ablation rates are as low as 0.112 and 0.018 mm/s at 4.18 MW/m2 (20 s) and 1.20 MW/m2 (120 s) of oxyacetylene heat flow, respectively. The corresponding maximum back temperatures are only 51.0°C and 60.3°C. Notably, the carbon/ceramic network is still present in the ablation layer to protect the carbon fibers from oxidation. This ceramizable PSZ‐PR/CF composite has good potential for application in the field of thermal protection.Highlights PSZ improves thermal stability and ablation properties of PSZ‐PR/CF. The PSZ‐PR/CF composites exhibit excellent mechanical and ablation properties. The ceramic products improve the scouring resistance of aerogel matrixes. The ceramizable PSZ‐PR/CF was prepared by low‐cost ambient pressure drying.

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Yttrium Silicate‐Coated Carbon Fiber Reinforced Phenolic Aerogel‐like Composites with Low Density and Low Ablation

Sun,

Wang,

Huang

et al. 2024

ChemistrySelect

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The evolution of hypersonic vehicles has raised higher requirements for thermal protection materials, which have become the focus of research on how to meet the lightweight and less ablative. Herein, a yttrium silicate‐coated carbon fiber felts (YS‐CFs) reinforced phenolic aerogel‐like (PR) composites were prepared. The YS‐CFs/PR with the addition of 12 % hexamethylenetetramine exhibited low density (0.540 g/cm3), low thermal conductivity (0.145 W/(m⋅K)), and good thermal stability. Specifically, under an oxyacetylene flame examination with 2.44 MW/m2 heated for 120 s, its mass ablation rates (9.833 mg/s) and line ablation rates (5 μm/s) were decreased by 40.8 % and 32.6 %, respectively, compared to others. The results show that the composites with these combined properties can meet the requirements for thermal protection materials in the field of hypersonic vehicles.

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

Cited by 4 publications

References 39 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

Mechanical properties and oxidative ablation behaviors of polysilazane‐modified phenolic resin aerogel/carbon fiber fabric composites

Yttrium Silicate‐Coated Carbon Fiber Reinforced Phenolic Aerogel‐like Composites with Low Density and Low Ablation

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