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首页> 外文会议>International Seminar on Aerospace Science and Technology >Three-Point Bending Tests on Composite Sandwich Structure with Balsa Wood Core and Fiberglass Faces for Glider Design
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Three-Point Bending Tests on Composite Sandwich Structure with Balsa Wood Core and Fiberglass Faces for Glider Design

机译：用Balsa木芯和滑翔机设计的玻璃木芯和玻璃纤维面的三点弯曲试验

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The purpose of this study is to analyze bending strength of composite structure that was made of balsa wood as its core and fiberglass woven roving WR200 as its face. Balsa wood was chosen as the core because of its high strength-to-weight ratio. Steps that were taken for this research are as follows. First, literature review by reading journals and books related with the research topic. Second, creating the specimens and conducting quality control of each of them. Each specimen underwent three-point bending test and the data were collected. The data that had been collected from the test were then analyzed. Lastly, the conclusion and recommendation were generated based on the findings from the data. Both specimens were tested on the same machine, i. e. Tensilon three-point bending, which has the maximum strength of 1000 kgF. The two specimens which were tested by three-point bending test in this research are sandwich composite with vertically aligned balsa wood as its core (core perpendicular to the length of specimen), and sandwich composite with horizontally aligned balsa wood as its core (core aligned with the length of specimen). Sandwich composite with horizontally aligned core has the maximum load of 697.2 N, while the value of maximum core shear strength and face bending strength were 0.768 MPa and 37.171 MPa. Sandwich composite with vertically aligned core had the maximum load of 1098.5 N, while the value of maximum core shear strength and face bending strength were 1.208 MPa and 67.113 MPa. According to the test result of the two kinds of specimens, sandwich composites with vertically aligned core are stronger than horizontally aligned core ones. This research is limited to fiberglass woven roving WR200 with the degree of orientation in the value of ±45° as the face.
机译：本研究的目的是分析复合结构的弯曲强度，该结构是由Balsa木材制成的核心和玻璃纤维编织的WR200作为其脸部。由于其高强度重量比，因此选择了Balsa木材作为核心。本研究采取的步骤如下。首先，通过阅读与研究主题相关的期刊和书籍进行文献综述。其次，创建标本和对它们中的每一个进行质量控制。每个样本都接受了三点弯曲测试并收集了数据。然后分析从测试中收集的数据。最后，基于数据的调查结果生成了结论和建议。这两个标本都在同一台机器上进行了测试，i。 e。 Tensilon三点弯曲，其最大强度为1000 kgf。该研究中三点弯曲试验测试的两种样品是夹层复合材料，其具有垂直对齐的Balsa木材作为其核心（垂直于样本长度的核心），以及夹层复合材料，水平对齐的Balsa木材作为其核心（核心对齐）随着样品的长度）。夹层复合材料具有水平排列的核心的最大负载697.2 n，而最大芯剪力强度和面部弯曲强度的值为0.768MPa和37.171MPa。具有垂直对齐芯的夹层复合材料的最大负载为1098.5 n，而最大芯剪强度和面部弯曲强度的值为1.208MPa和67.113MPa。根据两种样品的试验结果，具有垂直对齐芯的夹层复合材料比水平对准的芯芯强。该研究仅限于玻璃纤维编织粗纱WR200，其值的取向程度为±45°。

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