Geometry Determination of Cruciform-Type Specimen and Biaxial Tensile Test of C/C Composites

机译：十字型试样的几何确定和C / C复合材料的双轴拉伸试验

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The cruciform-type specimen is preferable to cylindrical-type one to perform biaxial tensile test. Therefore, a cruciform-type specimen having some slots in four arms was used to determine biaxial property of carbon-carbon (C/C) composites. The strain (or stress) distribution in center area and the stress state of the specimen having several kinds of slots, which differ in the length, width, position and number, were calculated by finite element analysis. As the result, geometry of a cruciform-type specimen was selected as the most suitable one for biaxial tensile test of C/C composites. The strains in center area of the proposed specimen under biaxial tensile loads were measured by strain gauges, and the values agreed well with those of analytical results. Therefore, the validity of the geometry of the cruciform-type specimen was experimentally confirmed. Also the behaviors of C/C composites under biaxial tensile loads were examined on this type of specimen.

机译：在进行双轴拉伸试验时，优选十字形试样比圆筒形试样好。因此，使用在四个臂上具有一些狭缝的十字形样品来确定碳-碳（C / C）复合材料的双轴性能。通过有限元分析，计算出长度，宽度，位置和数量不同的具有几种缝隙的试样在中心区域的应变（或应力）分布和应力状态。结果，选择十字形试样的几何形状作为最适合C / C复合材料双轴拉伸试验的试样。用应变仪测量了双轴拉伸载荷作用下试样中心区域的应变，其值与分析结果吻合得很好。因此，通过实验证实了十字形样品的几何形状的有效性。还在这种类型的样品上检查了C / C复合材料在双轴拉伸载荷下的行为。

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来源
《High temperature ceramic matrix compositei III》|1998年|151-154|共4页
会议地点 Osaka(JP);Osaka(JP);Osaka(JP);Osaka(JP)
作者
Y. Ohtake; S. Rokugawa; H. Masumoto;
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作者单位

Japan Ultra-High Temperature Materials Research Institute, Ube, Yamaguchi 755-0001, Japan;

Japan Ultra-High Temperature Materials Research Institute, Ube, Yamaguchi 755-0001, Japan;

Japan Ultra-High Temperature Materials Research Institute, Ube, Yamaguchi 755-0001, Japan;

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会议组织
原文格式 PDF
正文语种 eng
中图分类 TQ174.58;
关键词
biaxial tensile test; C/C; analysis; strain measurement; cruciform-type specimen;

机译：双轴拉伸试验C / C；分析;应变测量十字形标本;

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4. Geometry determination of cruciform-type specimen and biaxial tensile test of C/C composites [C] . Y. Ohtake, S. Rokugawa, H. Masumoto International conference on high temperature cermic matrix composites . 1999

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Geometry Determination of Cruciform-Type Specimen and Biaxial Tensile Test of C/C Composites

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