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Multiscale Modeling of Carbon/Phenolic Composite Thermal Protection Materials: Atomistic to Effective Properties.

机译：碳/酚复合材料热保护材料的多尺度建模：有效性的原子性。

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Next generation ablative thermal protection systems are expected to consist of 3D woven composite architectures. It is well known that composites can be tailored to achieve desired mechanical and thermal properties in various directions and thus can be made fit-for-purpose if the proper combination of constituent materials and microstructures can be realized. In the present work, the first, multiscale, atomistically-informed, computational analysis of mechanical and thermal properties of a present day - Carbon/Phenolic composite Thermal Protection System (TPS) material is conducted. Model results are compared to measured in-plane and out-of-plane mechanical and thermal properties to validate the computational approach. Results indicate that given sufficient microstructural fidelity, along with lowerscale, constituent properties derived from molecular dynamics simulations, accurate composite level (effective) thermo-elastic properties can be obtained. This suggests that next generation TPS properties can be accurately estimated via atomistically informed multiscale analysis.

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作者
Arnold, S. M.; Murthy, P. L.; Bednarcyk, B. A.; Lawson, J. W.; Monk, J. D.; Bauschlicher, C. W. J.;
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年度 2016
页码 1-28
总页数 28
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Thermal protection; Carbon-phenolic composites; Composite materials; Elastic properties; Mechanical properties; Thermodynamic properties; Woven composites; Simulation; Estimating; Microstructure; Ablation;

机译：热保护;碳酚复合材料;复合材料;弹性性能;力学性能;热力学性能;机织复合材料;模拟;估算;微观结构;烧蚀;
入库时间 2022-08-29 10:46:11

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Multiscale Modeling of Carbon/Phenolic Composite Thermal Protection Materials: Atomistic to Effective Properties.

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