Strain Measurement in Aluminium Alloy during the Solidification Process Using Embedded Fibre Bragg Gratings.
Strain Measurement in Aluminium Alloy during the Solidification Process Using Embedded Fibre Bragg Gratings.
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DOI：
10.3390/s16111853
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发表时间：
2016-11-04
期刊：
影响因子：
--
通讯作者：
Koch AW
中科院分区：
文献类型：
--
作者：
Weraneck K;Heilmeier F;Lindner M;Graf M;Jakobi M;Volk W;Roths J;Koch AW
近年来，观察部件在生产过程和其生命周期中的行为变得越来越重要。结构健康监测，例如碳复合材料，是最先进的研究。光纤布拉格光栅(FBG)在这一领域的应用具有很大的优势。另一个可能的应用领域是铸造厂。熔体在凝固过程中的内部状态尤其令人感兴趣。通过使用嵌入式FBG，可以在过程中监测温度和应力。在本工作中，将FBG埋入铝合金中，以观察发生的应变。为了比较其相关性，在模具中选择了两个不同的FBG位置。结果表明，尽管FBG的压缩范围为1%，但仍能承受凝固过程，这与文献值一致。此外，应用了不同长度的栅格，结果表明，较短的栅格可以产生更精确的测量。实验结果证明，FBG可以作为温度高达740°C的传感器。
In recent years, the observation of the behaviour of components during the production process and over their life cycle is of increasing importance. Structural health monitoring, for example of carbon composites, is state-of-the-art research. The usage of Fibre Bragg Gratings (FBGs) in this field is of major advantage. Another possible area of application is in foundries. The internal state of melts during the solidification process is of particular interest. By using embedded FBGs, temperature and stress can be monitored during the process. In this work, FBGs were embedded in aluminium alloys in order to observe the occurring strain. Two different FBG positions were chosen in the mould in order to compare its dependence. It was shown that FBGs can withstand the solidification process, although a compression in the range of one percent was measured, which is in agreement with the literature value. Furthermore, different lengths of the gratings were applied, and it was shown that shorter gratings result in more accurate measurements. The obtained results prove that FBGs are applicable as sensors for temperatures up to 740 °C.
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影响因子：
3.5
作者：
Roessner, Max R.;Mueller, Mathias S.;Koch, Alexander W.
通讯作者：
Koch, Alexander W.
影响因子：
2.8
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Koch, Alexander W.
影响因子：
2.4
作者：
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通讯作者：
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影响因子：
2.4
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通讯作者：
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影响因子：
2.7
作者：
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通讯作者：
El-Sherif, MA