首页> 外文会议>International Symposium on Geotechnical Measurements and Modelling; Sep 23-25, 2003; Karlsruhe, Germany >Experimental and model studies on the Modified Tension Test (MTT) a new and simple testing method for direct tension tests
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Experimental and model studies on the Modified Tension Test (MTT) a new and simple testing method for direct tension tests

机译:改进的拉伸试验(MTT)的实验和模型研究,一种直接拉伸试验的新的简单方法

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摘要

The "Modified Tension Test" represents a new and innovative approach to the laboratory research of the uniaxial tensile strength. The test features a cylindrical specimen of special geometry, so a unidirectional, direct tensile stress field is created in the sample. The test may easily be carried out in any standard testing machine to test the Unconfined Compressive Strength (UCS). The presented results evaluate the MTT as an easy-to-carry-out laboratory testing method, which on the one hand shows a good ratio of the required testing equipment and demands for the testing material. On the other hand, it provides a realistic value for the direct tensile strength of a rock or concrete sample. From the experience of this program, some practical suggestions are also made on testing circumstances such as sample geometry, sample preparation and documentation of the test result.
机译:“改进的拉伸试验”代表了一种新的创新方法,用于单轴拉伸强度的实验室研究。该测试以具有特殊几何形状的圆柱形样本为特征,因此在样本中会产生单向直接拉伸应力场。该测试可以在任何标准测试机中轻松进行,以测试无侧限抗压强度(UCS)。提出的结果将MTT评估为一种易于执行的实验室测试方法,一方面显示出所需测试设备和测试材料的比例很高。另一方面,它为岩石或混凝土样品的直接拉伸强度提供了一个实际值。根据该程序的经验,还针对测试环境提出了一些实用的建议,例如样品的几何形状,样品的制备和测试结果的记录。

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