EFFECT OF THE ROOT CRACK ON NATURAL FREQUENCIES OF SANDWICH COMPOSITE BEAMS
EFFECT OF THE ROOT CRACK ON NATURAL FREQUENCIES OF SANDWICH COMPOSITE BEAMS
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根部裂纹对夹层复合梁自振频率的影响
DOI：
10.5505/pajes.2013.96168
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
B. Kiral
中科院分区：
文献类型：
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作者：
O. Sayman;M. E. Toygar;Z. Kıral;B. Kiral
本文旨在通过实验和数值模拟研究界面裂纹对夹层复合材料梁自由振动响应的影响。对含根部裂纹的夹层复合材料悬臂梁的固有频率进行了研究。在面板与泡沫芯体之间分别开设50、100、150、200 mm等不同长度的裂纹，对这些试样进行了自振试验。对于数值分析，使用ANSYS有限元软件。数值分析和实验结果进行了比较，可以看出，它们之间有很好的协议。
This study aims to examine the effect of interface crack on the free vibration response of a sandwich composite beam experimentally and numerically. Natural frequencies in a thin sandwich composite cantilever beam with root crack are determined. The crack with various lengths is opened between the face sheet and foam core, such as 50, 100, 150 and 200 mm. Free vibration tests of these samples are carried out. For the numerical analysis, ANSYS finite element software is used. Results obtained by numerical analyses and experiments are compared and it is seen that there is a good agreement between them.