Brittle Fracture Analysis of One-dimensional Pull Rod Based on Phase-field Model

被引：0
|
作者：
Yuan J. [1 ,2 ]
Chen C. [1 ,2 ]
机构：
[1] School of Architecture and Civil Engineering, Xiamen University, Xiamen
[2] School of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2021年 / 48卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Brittle fracture; Numerical simulation; One-dimensional pull rod; Phase-field model;
D O I：
10.16339/j.cnki.hdxbzkb.2021.02.007
中图分类号：
学科分类号：
摘要：
Based on phase-field model, brittle fracture of the structures under tension is studied numerically. An introduction for construction of crack distribution function and energy dissipation function is presented. The governing equations for the phase field model are derived according to the conservation of energy and further solved by alternating minimization (staggered) algorithm. Good agreements between analytical solutions and numerical solutions of one-dimensional bar under tension validate the accuracy of analytical solutions. Numerical simulations of structures with geometric imperfection and predefined damage under tension are also presented. The numerical results show that deformation localization and brittle fracture in failure areas can be modeled accurately. © 2021, Editorial Department of Journal of Hunan University. All right reserved.
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页码：53 / 58
页数：5
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