Modeling mechanical behaviors of composites with various ratios of matrixeinclusion properties using movable cellular automaton method

作     者：A.Yu.SMOLIN E.V.SHILKO S.V.ASTAFUROV I.S.KONOVALENKO S.P.BUYAKOVA S.G.PSAKHIE 

作者机构：Institute of Strength Physics and Materials Science SB RAS Tomsk State University Institute of High Technology Physics Tomsk Polytechnic University Skolkovo Institute of Science and Technology 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2015年第11卷第1期

页      面：18-34页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：the Projects Nos. III.23.2.3 (I.S. Konovalenko, S.P. Buyakova) and III.23.2.4 (S.G. Psakhie) of the Basic Scientific Research Program of State Academies of Sciences for 2013e2020 the RFBR Project No. 12-01-00805-a (A.Yu. Smolin, E.V. Shilko) the grant No. 14-19-00718 of the Russian Science Foundation (A.Yu. Smolin, E.V. Shilko, S.V. Astafurov) 

主　　题：Composites Metal ceramics Zirconia ceramics Gel Modeling Movable cellular automata Many-body interaction 

摘      要：Two classes of composite materials are considered: classical metaleceramic composites with reinforcing hard inclusions as well as hard ceramics matrix with soft gel inclusions. Movable cellular automaton method is used for modeling the mechanical behaviors of such different heterogeneous materials. The method is based on particle approach and may be considered as a kind of discrete element method. The main feature of the method is the use of many-body forces of inter-element interaction within the formalism of simply deformable element approximation. It was shown that the strength of reinforcing particles and the width of particle-binder interphase boundaries had determining influence on the service characteristics of metaleceramic composite. In particular, the increasing of strength of carbide inclusions may lead to significant increase in the strength and ultimate strain of composite material. On the example of porous zirconia ceramics it was shown that the change in the mechanical properties of pore surface leads to the corresponding change in effective elastic modulus and strength limit of the ceramic sample. The less is the pore size, the more is this effect. The increase in the elastic properties of pore surface of ceramics may reduce its fracture energy.