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《Journal of Water Resources and Architectural Engineering》 2016-03
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Numerical Experiment of the Dynamic Mechanical Properties of Meso Concrete Under Static Pre-loading

LEI Guangyu;HAN Jichang;DANG Faning;LI Juan;Shaanxi Land Engineering Construction Group;Institute of Geotechnical Engineering,Xi'an University of Technology;  
The influence of the dynamic compressive strength and the dynamic bending strength is completely different under the static pre loading.To study the dynamic mechanical property of concrete under static pre-loading,numerical experiment was adopted and a programme was developed by the authors which is a stochastic aggregate finite element model for concrete.According to the plastic damage constitutive,by applying different static pre-loading under the different strain rates,the strength and failure modes of concrete affected by the static pre-loading was analyzed.The results showed that the static pre-loading have different influences on the dynamic compressive strength of concrete under different strain rates,and they all will reduce the dynamic strength.The concrete failure mode is not the same under the different static pre-loading sizes.
【Fund】: 水利部公益性行业科研专项(201201053-03);; 国家科技支撑计划(2014BAL01B03)
【CateGory Index】: TU528
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