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首页> 外文会议>Symposium on Nondestructive Characterization of Materials in Aging Systems, held November 30- December 4, 1997, Boston, Massachusetts, U.S.A. >Energy-microcrack growth measurments for mortar cylinders in compression
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Energy-microcrack growth measurments for mortar cylinders in compression

机译：压缩中榫筒的能量微裂纹增长测量

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摘要

A high resolution three-dimensional scanning technique called x-ray microtomography was applied to measure internal damage and crack growth in small mortar cylinders loaded in compression. Tomographic scans were made at different load increments in the same specimen. Three-dimensional image analysis was used to measure internal crack growth during each load increment. Load-deformation curves were used to measure the work of the external load on the specimen. Non-recoverable work of load was related to measured crack growth to estimate work of fracture in three dimensions. Initial results indicate a roughly linear relationship between work of load and internal crack area.
机译：一种高分辨率的三维扫描技术（称为X射线显微断层摄影术）用于测量压缩载荷下的小型砂浆缸的内部损伤和裂纹扩展。在同一样品中以不同的载荷增量进行断层扫描。三维图像分析用于测量每个载荷增量期间的内部裂纹扩展。载荷-变形曲线用于测量试样上的外部载荷。负荷的不可恢复功与测得的裂纹扩展有关，以在三个维度上估计断裂功。初步结果表明，载荷功与内部裂纹面积之间呈大致线性关系。

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