Thermo-mechanical damage modeling of a glass–phenolic composite material

Luo, Changsong; DesJardin, Paul E.

doi:10.1016/j.compscitech.2006.07.030

Cited by 50 publications

(39 citation statements)

References 15 publications

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“…The circulation of the dissipated heat occurs within this boundary and passes the heat away from the material surface. This phenomenon led to an added advantage for an efficient thermal shielding mechanism [50]. Normally, the thermochemical degradation of outer layer of the carbon-carbon composite takes place through convectional heat transfer in which pyrolyzing layer diffuses towards the heated area of the shield.…”

Section: Ablative Mechanismsmentioning

confidence: 99%

“…In case of carbon-carbon polymer composites, decomposition takes place through the viscous softening, melting, decomposition, and volatilization [67]. So a meticulous study over the decomposition characteristics to observe the real material degradation phenomenon is essential.…”

Section: Thermal Decompositionmentioning

confidence: 99%

“…Srikanth et al developed a composite panel in which the top layer consists of carbon nanotube (CNT) hybrid carbon phenolic composite and in the bottom layer Zirconium Oxide hybrid C-Ph composite. Presence of the CNT in the composite enhances the flexural and shear strength of the composite, but during charring composite loses its structural integrity due to the improvement in thermal conductivity of the CNT [50]. Powder metallurgical approach including plasma spraying method has been widely used in the fabrication of thermal stress relief type of functionally graded materials [59].…”

Section: Functionally Graded Compositesmentioning

confidence: 99%

“…Uniform dispersion of nanofillers effectively improves the structural integrity of the char layer during ablation. Inorganic fillers are found as more suitable materials for thermal insulations due to the presence of thermal barrier properties and surface morphology [50].…”

Section: Nano Filler Enabled Hybrid Compositementioning

confidence: 99%

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Hybrid Carbon-Carbon Ablative Composites for Thermal Protection in Aerospace

Sanoj

Kandasubramanian

2014

Journal of Composites

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Composite materials have been steadily substituting metals and alloys due to their better thermomechanical properties. The successful application of composite materials for high temperature zones in aerospace applications has resulted in extensive exploration of cost effective ablative materials. High temperature heat shielding to body, be it external or internal, has become essential in the space vehicles. The heat shielding primarily protects the substrate material from external kinetic heating and the internal insulation protects the subsystems and helps to keep coefficient of thermal expansion low. The external temperature due to kinetic heating may increase to about maximum of 500 ∘ C for hypersonic reentry space vehicles while the combustion chamber temperatures in case of rocket and missile engines range between 2000 ∘ C and 3000 ∘ C. Composite materials of which carbon-carbon composites or the carbon allotropes are the most preferred material for heat shielding applications due to their exceptional chemical and thermal resistance.

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Section: Ablative Mechanismsmentioning

confidence: 99%

Section: Thermal Decompositionmentioning

confidence: 99%

Section: Functionally Graded Compositesmentioning

confidence: 99%

Section: Nano Filler Enabled Hybrid Compositementioning

confidence: 99%

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Hybrid Carbon-Carbon Ablative Composites for Thermal Protection in Aerospace

Sanoj

Kandasubramanian

2014

Journal of Composites

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“…벤젠기 에 의한 높은 화학적 안정성과 고분자 구조적 안정성에 의 하여 다른 고분자 수지들에 비해 내열성이 높은 편이다. 구 조적 안정성에 따른 높은 내열성을 지니는 페놀 수지는 치 수 안정성을 가지는 수지이다 [3]. 이러한 이유로, 페놀 수 지를 이용한 페놀 복합재료가 고내열성을 요구하는 우주 항공 분야에 열 방지 시스템(Thermal protection systems (TPS)) 및 수송 분야에서 사용되고 있다 [4].…”

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Microstructure and Ablation Performance of CNT-phenolic Nanocomposites

Wang¹,

Kwon²,

Park³

et al. 2013

Composites Research

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Highly ablation resistant carbon nanotube (CNT)-phenolic composites were fabricated by the addition of low concentrations of CNT nanofiller. Tensile and compressive properties as well as ablative resistance were significantly improved by the addition of only 0.1 and 0.3 wt% of uniformly dispersed CNTs. An oxygen-keroseneflame torch and a field emission scanning electron microscope (FE-SEM) were used to evaluate the ablative properties and microstructures of these CNT-phenolic composites. Thermal gravimetric analysis (TGA) revealed that the ablation rate was lower for the 0.3 wt% CNT-phenolic composites than for neat phenolic or the composite with 0.1 wt% CNT. Ablative mechanisms for all three materials were investigated using this TGA in conjunction with microstructural studies using a FE-SEM. The microstructural studies revealed that CNT acted as an ablation resistant phase at high temperatures, and that the uniformity of dispersion of the CNT played an important role in this resistance to ablation.

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Synthesis and characterization of phenolic resol resin blended with silica sol and PVA

Fang

Suo

2010

J of Applied Polymer Sci

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The phenolic resol resin (PF) has a wide application in industry, but its poor tensile ductility and insufficient mechanical strength have severely limited its application. To overcome these limitations, in this study, the mixtures of silica sol and poly(vinyl acohol) (PVA) were used to modify the PF. The structure, morphology, mechanical properties, and thermal stability of these hybrid materials were investigated by FTIR, SEM, tensile shear test (TSS), and TG. FTIR spectra indicated that the multiple reactive functional silanol group SiAOH on the surface of SiO 2 particles reacted with PVA and PF. Compared with pure PF, the composite 50-50-3% exhibited the maximum shear strength which increased by 158%, whereas the elongation at break increased by 63%. Morphological results agreed well with the mechanical properties. The TG results suggested that the composite material 50-50-3% and pure PF had almost the same thermal stability because silica sol and PVA had opposite effects on the heat resistance of the hybrid materials.

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Thermo-mechanical damage modeling of a glass–phenolic composite material

Cited by 50 publications

References 15 publications

Hybrid Carbon-Carbon Ablative Composites for Thermal Protection in Aerospace

Hybrid Carbon-Carbon Ablative Composites for Thermal Protection in Aerospace

Microstructure and Ablation Performance of CNT-phenolic Nanocomposites

Synthesis and characterization of phenolic resol resin blended with silica sol and PVA

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