LI Tianyi, ZHANG Qing, XIA Xiaozhou, GU Xin. A Peridynamic Model for Heterogeneous Concrete Materials[J]. Applied Mathematics and Mechanics, 2018, 39(8): 913-924. doi: 10.21656/1000-0887.380274
Citation: LI Tianyi, ZHANG Qing, XIA Xiaozhou, GU Xin. A Peridynamic Model for Heterogeneous Concrete Materials[J]. Applied Mathematics and Mechanics, 2018, 39(8): 913-924. doi: 10.21656/1000-0887.380274

A Peridynamic Model for Heterogeneous Concrete Materials

doi: 10.21656/1000-0887.380274
Funds:  The National Natural Science Foundation of China(11672101;11372099)
  • Received Date: 2017-10-31
  • Rev Recd Date: 2018-06-08
  • Publish Date: 2018-08-15
  • The classical continuum mechanics and some related numerical methods often fail in analysis of the damage evolution and progressive failure process of concrete materials, due to the difficulties in handling discontinuity and considering the intrinsic microstructure, which is of significance to the damage evolution. A peridynamic concrete model in view of the heterogeneity was established. The digital image processing (DIP) technology was firstly adopted to extract the information of aggregate shape and distribution in a concrete specimen, and then the bondbased peridynamic model reflecting 3 different bonds was applied to analyze the tension and compression failure of standard concrete specimens. The proposed analysis tool was further developed with the FORTRAN language in the framework of ABAQUS. The numerical results are in good agreement with reported experimental data, indicating that the proposed peridynamic model for heterogeneous concrete can simulate the complex failure process of concrete well, and paves a way to further exploration of the failure mechanism of concrete materials.
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