• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >Homogenized and localized responses of coated magnetostrictive porous materials and structures
【24h】

Homogenized and localized responses of coated magnetostrictive porous materials and structures

机译：涂层磁致伸缩多孔材料和结构的均质化和局部响应

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The homogenized properties and localized field distributions of coated magneto-strictive porous heterogeneous materials are extensively investigated using the extended Finite Volume Direct Averaging Micromechanics (FVDAM) with coupled mechanical-magnetic capabilities. Both square and hexagonal microstructures are employed to mimic different hollow coating arrangements. In order to validate the present technique, the corresponding finite element model is constructed in Abaqus to provide rigorous comparisons, and no visible difference is observed between two different models' predictions. The effects of the thickness of coatings are tested on the effective and local responses, where the hollow coatings play significant roles in the variations of homogenized properties and transmissions of stress concentrations. Finally, a two-step multiscale framework is established on periodic wavy structures, wherein the layers are composed of CoFe2O4 material reinforced by BaTiO3 hollow coatings with two different volume fractions. The amplitude-to-wavelength ratio is varied to effectively study its impact on the field distributions of homogenized layers and local microstructures.
机译：涂层磁致伸缩多孔非均质材料的均质特性和局部场分布是使用扩展的有限体积直接平均微力学（FVDAM）和机械磁性能耦合进行了广泛研究的。正方形和六角形的微结构都被用来模仿不同的空心涂层结构。为了验证本技术，在Abaqus中构建了相应的有限元模型以提供严格的比较，并且在两个不同模型的预测之间未观察到可见的差异。测试了涂层厚度对有效和局部响应的影响，其中中空涂层在均质特性的变化和应力集中的传递中起着重要作用。最后，在周期性波浪结构上建立了两步多尺度框架，其中各层由CoFe2O4材料组成，该材料由具有两种不同体积分数的BaTiO3空心涂层增强。改变振幅/波长比以有效地研究其对均质层和局部微结构的场分布的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号