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首页> 外文期刊>International Journal of Heat and Mass Transfer >Further considerations on anisotropic thermal efficiency of symmetric composites
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Further considerations on anisotropic thermal efficiency of symmetric composites

机译：关于对称复合材料各向异性热效率的进一步考虑

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摘要

The paper investigates the anisotropic thermal efficiency of symmetric composites made of two components, matrix and fiber reinforcement. The anisotropic degree of the composite is the ratio between the effective thermal conductivity in the direction parallel to the fiber reinforcement, and that in the perpendicular direction. The potential anisotropy of the materials is the ratio between the thermal conductivity of the fiber to that of the matrix. The anisotropic thermal efficiency is the ratio between the anisotropy degree of the composite, and the potential anisotropy of the two materials. The theoretical model solves the heat conduction equation under the two thermal assumptions of parallel isotherms and parallel heat fluxes, and without any empirical constant nor analogy with other phenomena, evaluating the anisotropic thermal efficiency of the symmetric composite. The variation of the anisotropic thermal efficiency is investigated versus the potential anisotropy of the materials and the ratio between fiber and matrix thicknesses. The anisotropic thermal efficiency has a maximum versus the ratio between fiber and matrix thicknesses, and decreases with the increase of the potential anisotropy, reaching a minimum, which is only dependent on the geometrical configuration of the symmetric composite.
机译：本文研究了由基体和纤维增强两部分组成的对称复合材料的各向异性热效率。复合材料的各向异性度是平行于纤维增强方向的有效导热率与垂直方向的有效导热率之比。材料的潜在各向异性是纤维的导热率与基体的导热率之比。各向异性热效率是复合材料的各向异性程度与两种材料的电势各向异性之间的比率。该理论模型在平行等温线和平行热通量的两个热假设下，没有任何经验常数或与其他现象的相似性，求解了导热方程，从而评估了对称复合材料的各向异性热效率。研究了各向异性热效率随材料的潜在各向异性以及纤维和基体厚度之比的变化。各向异性热效率相对于纤维和基体厚度之间的比率具有最大值，并且随着势各向异性的增加而降低，达到最小值，这仅取决于对称复合材料的几何构型。

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