Cracking Propagation of Hardening Concrete Based on the Extended Finite Element Method

作     者：朱振泱 CHEN Weimin ZHANG Guoxin 

作者机构：China Institute of Water Resources and Hydropower Research Beifing 100038 China Hydrochina Huadong Engineering Corporation Hangzhou 310014 China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2017年第32卷第5期

页      面：1132-1139页

核心收录：

学科分类：08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 

基　　金：Funded by the National Natural Science Foundation of China(Nos.51409264,51509020,51209219) Zhejiang Provincial Natural Science Foundation(No.LQ15E090003) 

主　　题：concrete crack self deformation loads extended finite element method 

摘      要：Self-deformation cracking is the cracking caused by thermal deformation, autogenous volume deformation or shrinkage deformation. In this paper, an extended finite element calculation method was deduced for concrete crack propagation under a constant hydration and hardening condition during the construction period, and a corresponding programming code was developed. The experimental investigation shows that initial crack propagation caused by self-deformation loads can be analyzed by this program. This improved algorithm was a preliminary application of the XFEM to the problem of the concrete self-deformation cracking during the hydration and hardening period. However, room for improvement exists for this algorithm in terms of matching calculation programs with mass concrete temperature fields containing cooling pipes and the influence of creep or damage on crack propagation.