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Mathematical Problems in Engineering
Volume 2018, Article ID 8412620, 10 pages
https://doi.org/10.1155/2018/8412620
Research Article

Peridynamic Model for the Numerical Simulation of Anchor Bolt Pullout in Concrete

1School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China
2Balochistan University of Information Technology, Engineering and Management Sciences, Baleli, Quetta, Pakistan

Correspondence should be addressed to Yaoting Zhang; nc.ude.tsuh@5691tyz

Received 13 September 2017; Accepted 31 January 2018; Published 21 March 2018

Academic Editor: Roman Wendner

Copyright © 2018 Jiezhi Lu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Predictive simulation of anchor pullout from concrete structures is not only a serious problem in structural mechanics but also very important in structural design safety. In the finite element method (FEM), the crack paths or the points of crack initiation usually need to be assumed in advance. Otherwise, some special crack growth treatment or adaptive remeshing algorithm is normally used. In this paper, an extended peridynamic method was introduced to avoid the difficulties found in FEM, and its application on anchor bolt pullout in plain concrete is studied. In the analysis, the interaction between the anchor bolt and concrete is represented by a modified short-range force and an extended bond-level model for concrete is developed. Numerical analysis results indicate that the peak pullout load obtained and the crack branching of the anchoring system agreed well with the experimental investigations.