Computational modeling of fracture in capsule-based self-healing concrete: A 3D study

作     者：Luthfi Muhammad MAULUDIN Timon RABCZUK Luthfi Muhammad MAULUDIN;Timon RABCZUK

作者机构：Civil Engineering DepartmentGegerkalong Hilir Ds.CiwarugaBandung 40012Indonesia Institute of Structural MechanicsBauhaus University of WeimarWeimar 99425Germany 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2021年第15卷第6期

页      面：1337-1346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] 0814[工学-土木工程] 

基　　金：The authors thank the support of the RISTEK-DIKTI(Directorate General of Resources for Science,Technology and Higher Education.Ministry of Research,Technology and Higher Education of Indonesia)under funding agreement No:153.39/E4.4/2014 the project ‘Carl-Zeiss Stiftung’ Durchbriiche—Exzellenz in der Forschung:‘Funktionalisierung 191 smarter Werkstoffe unter Mehrfeldanforderungen fur die Verkehrsinfrastruktur’ 

主　　题：3D fracture self-healing concrete spherical cohesive elements heterogeneous 

摘      要：We present a three-dimensional(3D)numerical model to investigate complex fracture behavior using cohesive *** efficient packing algorithm is employed to create the mesoscale model of heterogeneous capsulebased self-healing *** aggregates are used and directly generated from specified size distributions with different volume *** capsules are also used and created based on a particular diameter,and wall *** traction-separation laws of cohesive elements along the boundaries of the mortar matrix,aggregates,capsules,and their interfaces are pre-inserted to simulate crack initiation and *** pre-inserted cohesive elements are also applied into the initial meshes of solid elements to account for fracture in the mortar *** realizations are carried out and statistically *** proposed model provides an effective tool for predicting the complex fracture response of capsule-based self-healing concrete at the meso-scale.