• The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Simulating Tensile and Compressive Failure Process of Concrete with a User-defined Bonded-Particle Model

Author(s): Jinhui Ren , Zhenghong Tian, Jingwu Bu

Publication: IJCSM

Volume: 12


Appears on pages(s):

Keywords: three-dimensional simulation, failure process, concrete, user-defined bonded-particle model, PFC3D

DOI: https://doi.org/10.1186/s40069-018-0292-1

Date: 9/30/2018

A user-defined bonded-particle model (UBM) which is based on the modified parallel bond was established in this paper to investigate the tensile and compressive failure mechanism of concrete on the three-dimensional (3D) level. The contact constitutive relation and the failure criterion of the UBM can be added to the commercial discrete ele-ment software PFC3D by compiling them as a dynamic link library file and loading it into PFC3D whenever needed. In addition, the aggregate particles can be generated according to the volume fraction and the shape of each aggre-gate is irregular. Then, by comparing the results of numerical simulation with the results of laboratory tests, it is found that this bonded-particle model can simulate the tensile and compressive failure process of concrete well to a certain extent. Specifically, the two have basically similar failure patterns and stress–strain responses no matter under tension or compression loading condition. All results indicate that this UBM is a promising tool in understanding and predict-ing the tensile and compressive failure process of concrete.