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Postbuckling analysis of laminated plates made of discontinuous metal matrix composites

机译：不连续金属基复合材料制成的层压板的屈曲后分析

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摘要

The moderately large deflection response of laminated plates that are made of discontinuous metal matrix composites and are subjected to compressive in-plane loading, is addressed. Whisker, particulate-, and platelet-reinforced structures are considered. At each loading increment, a micromechanical analysis is performed to provide the overall instantaneous elastic-viscoplastic behaviour of the metal matrix composite. This is followed by a structural analysis which yields the response of a geometrically imperfect composite plate to applied external loading. Results are presented for simply supported unidirectional and antisymmetric angle-ply SiC/Al plates, subjected to uniaxial compression, for two types of in-plane boundary conditions at unloaded edges. The effects of length-to-thickness ratio, fiber orientation angle, and temperature are illustrated. For all the cases considered, the corresponding behavior of continuous fiber SiC/Al plate with the same volume fraction is shown. Comparisons with the results, obtained by neglecting the viscoplastic effects of the metallic matrix, are presented.
机译：解决了由不连续的金属基体复合材料制成并经受压缩面内载荷的层压板的适度大挠曲响应。考虑了晶须，颗粒和血小板增强的结构。在每个加载增量处，进行微力学分析以提供金属基质复合材料的整体瞬时弹性-粘塑性行为。随后进行结构分析，得出几何上不完美的复合板对施加的外部载荷的响应。给出了在无载荷边缘处两种类型的平面内边界条件下，经过单轴压缩的单支撑和反对称角层SiC / Al薄板的结果。示出了长度/厚度比，纤维取向角和温度的影响。对于所有考虑的情况，均显示了相同体积分数的连续纤维SiC / Al板的相应性能。提出了与通过忽略金属基质的粘塑性作用获得的结果的比较。

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  • 来源
    《Composite Structures》 |1995年第4期|p.89-96|共8页
  • 作者

    Esther Feldman;

  • 作者单位

    Department of Solid Mechanics, Materials and Structures, Fleishman Faculty of Engineering, Tel Aviv University, Ramat Aviv 69978, Israel;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

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