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首页> 外文期刊>International Journal of Engineering Research and Applications >Alternative Method for Determining the Elastic Modulus of Concrete
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Alternative Method for Determining the Elastic Modulus of Concrete

机译：确定混凝土弹性模量的另一种方法

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This paper presents the use of the technique of digital image correlation for obtaining the elasticity modulus of concrete. The proposed system uses a USB microscope that captures images at a rate of five frames per second. The stored data are correlated with the applied loads, and a stress-strain curve is generated to determine the concrete compressive modulus of elasticity. Two different concretes were produced and tested using the proposed system. The results were compared with the results obtained using a traditional strain gauge. It was observed a difference in the range of 4% between the two methods, wherein this difference depends of a lot of parameter in the case of the DIC results, as focal length and a video capture resolution, indicating that DIC technique can be used to obtain mechanical properties of concrete.
机译：本文介绍了利用数字图像相关技术获得混凝土的弹性模量。拟议的系统使用USB显微镜，该显微镜以每秒五帧的速度捕获图像。所存储的数据与所施加的载荷相关，并生成应力-应变曲线以确定混凝土的压缩弹性模量。使用提出的系统生产并测试了两种不同的混凝土。将结果与使用传统应变仪获得的结果进行比较。观察到两种方法之间的差异在4％的范围内，其中在DIC结果的情况下，此差异取决于很多参数，例如焦距和视频捕获分辨率，这表明DIC技术可用于获得混凝土的机械性能。

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