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Dynamic tensile test of fly ash concrete under alternating tensile–compressive loading
Abstract In order to obtain the post-peak stress–strain curve of plain concrete, the strain-controlled uniaxial tensile tests are carried out on cylindrical specimens. The tensile cyclic tests are performed between a lower compressive load and an upper load to the envelope curve. Test results have shown that residual strain accumulates slowly when the concrete is subjected to alternating tensile–compressive loading, during which the microcracks increase and aggregate. Meanwhile, the rates of stiffness degradation with cycles are similar in all cases. In the study, an analytical model of the post-peak cyclic behavior of concrete is proposed. The strain is decomposed into classical linear elastic strain and non-classical strain described in the Presach–Mayergoyz model, which describes the hysteresis behavior of concrete well from a microscopic point of view. A good agreement is obtained between the test data and calculated results.
Dynamic tensile test of fly ash concrete under alternating tensile–compressive loading
Abstract In order to obtain the post-peak stress–strain curve of plain concrete, the strain-controlled uniaxial tensile tests are carried out on cylindrical specimens. The tensile cyclic tests are performed between a lower compressive load and an upper load to the envelope curve. Test results have shown that residual strain accumulates slowly when the concrete is subjected to alternating tensile–compressive loading, during which the microcracks increase and aggregate. Meanwhile, the rates of stiffness degradation with cycles are similar in all cases. In the study, an analytical model of the post-peak cyclic behavior of concrete is proposed. The strain is decomposed into classical linear elastic strain and non-classical strain described in the Presach–Mayergoyz model, which describes the hysteresis behavior of concrete well from a microscopic point of view. A good agreement is obtained between the test data and calculated results.
Dynamic tensile test of fly ash concrete under alternating tensile–compressive loading
Chen, Xudong (author) / Xu, Lingyu (author) / Bu, Jingwu (author)
Materials and Structures ; 51 ; 1-12
2018-01-24
12 pages
Article (Journal)
Electronic Resource
English
Dynamic tensile test of fly ash concrete under alternating tensile–compressive loading
| Online Contents | 2018
A meso-mechanical model for concrete under dynamic tensile and compressive loading
| British Library Online Contents | 2012