Numerical and Experimental Assessment of the Size and Boundary Conditions Effects for the Overall Properties of Granular Composite Bodies Smaller than the Representative Volume
Numerical and Experimental Assessment of the Size and Boundary Conditions Effects for the Overall Properties of Granular Composite Bodies Smaller than the Representative Volume
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尺寸和边界条件对小于代表体积的粒状复合体整体性能影响的数值和实验评估
DOI：
10.1007/978-94-015-8494-4_21
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发表时间：
1995
影响因子：
0.8
通讯作者：
C. Huet
中科院分区：
文献类型：
--
作者：
M. Amieur;S. Hazanov;C. Huet
对于混凝土这种非均质性很强的材料，目前标准试件的试验测试仅对经典混凝土（颗粒尺寸小于32 mm）和大于混凝土代表体积的工程结构构件给出了良好的结果。但在许多实际情况下，代表性体积的标本是不可用的。例如，混凝土颗粒可大于150mm，而试件直径可小于300mm。在这种情况下，测试结果取决于试样尺寸（尺寸效应）和应用的边界条件（b.c.效应）。
For such a strongly heterogeneous material as concrete, experimental testing with current standard specimens gives good results only for classic concrete (when the size of the granules is smaller than 32 mm) and for engineering structural elements bigger than the representative volume of concrete. But in many practical cases, specimens of the representative volume are not available. For example, inadam concrete granules can be coarser than 150 mm, while diameters of specimens are smaller than 300 mm. In such situations the testing results depend on the specimen dimensions (the size effect) and on the applied boundary conditions (the B. C. effect).