Fatigue properties of multifunctional metal- and carbon-fibre-reinforced polymers and intrinsic capabilities for damage monitoring
Fatigue properties of multifunctional metal- and carbon-fibre-reinforced polymers and intrinsic capabilities for damage monitoring
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DOI：
10.1111/ffe.12878
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发表时间：
2019-01-01
影响因子：
3.7
通讯作者：
Breuer, U. P.
中科院分区：
文献类型：
--
作者：
Backe, S.;Balle, F.;Breuer, U. P.
碳纤维增强聚合物（CFRP）结构与整体金属概念相比，具有更高的轻量化潜力。脆性破坏行为和导电性水平不足限制了复合材料的轻量化潜力。解决这些问题的一种有前途的新方法是金属纤维的额外集成。结构部件在其使用寿命期间承受循环载荷。因此，本研究的重点是额外的钢纤维增强的CFRP层合板的疲劳性能的影响。磁性能的确定，因为所选择的奥氏体钢纤维，这也适用于作为固有的损伤传感器的变形引起的相变。中断疲劳试验进行伴随着扫描电子显微镜，以获得故障机制的差异。除了钢纤维对传统CFRP结构疲劳性能的影响的详细概述，一种新的无损检测方法的磁感应测量装置的功能证据显示。
Carbon-fibre-reinforced polymers (CFRP) structures offer enhanced lightweight potential in comparison with monolithic metallic concepts. Brittle failure behaviour and the insufficient level of electrical conductivity limit the lightweight potential of composites. One promising new approach to solve these issues is the additional integration of metal fibres. Structural components are subjected to cyclic loads during their lifetime. Therefore, the present study focuses on the influence of additional steel fibre reinforcement on the fatigue behaviour of CFRP laminates. Magnetic properties are determined because of the deformation-induced phase transformation of the chosen austenitic steel fibres, which are also applied as intrinsic damage sensors. Interrupted fatigue tests are carried out accompanied by scanning electron microscopy to obtain differences in failure mechanisms. Beside a detailed overview of the steel fibre influence on the fatigue properties of conventional CFRP structures, the functional evidence of a new method for nondestructive testing by a magnet inductive measuring device is shown.