Peridynamic simulation of two-dimensional axisymmetric pull-out tests

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:168

Article

Zhang, Yong¹  Qiao, Pizhong^1,2 

[1] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China

[2] Washington State Univ, Dept Civil & Environm Engn, Sloan Hall 117, Pullman, WA 99164 USA

关键词: Pull-out test;    Peridynamics;    Axisymmetric model;    Failure criterion;    Contact;    Bond-slip behavior;   

DOI  :  10.1016/j.ijsolstr.2019.03.014

来源: Elsevier

【 摘 要 】

In this study, a systematic pull-out simulation scheme in the formwork of two dimensional (2D) axisymmetric domain using peridynamics (PD) is presented. An axisymmetric ordinary state-based peridynamic model is used to model the pull-out deformation just like the axisymmetric stress element in the finite element method (FEM). A failure criterion based on the bond energy density is adopted to predict the interfacial debonding, while a new PD contact model in the 2D axisymmetric domain is proposed to simulate the friction sliding during the pull-out process. The PD pull-out simulation scheme based on the respective 2D axisymmetric model, interfacial failure criterion and contact model is quantitatively validated in comparisons with either the FEM or analytical solutions. The whole process of the pull-out test is simulated using the proposed PD scheme, and the influences of both the interfacial fracture toughness and friction coefficient on the bond-slip behavior are investigated. The developed PD pull-out modeling scheme is capable of effectively simulating the pull-out tests and predicting the bond-slip behavior. (C) 2019 Elsevier Ltd. All rights reserved.

【 授权许可】

Free