考虑微观结构的zro2陶瓷压痕断裂试验三维有限元模拟

2022 International Congress on Advanced Materials Sciences and Engineering (AMSE) Pub Date : 2022-07-22 DOI:10.1109/AMSE51862.2022.10036674

G. Lasko, I. Danilenko, S. Schmauder

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引用次数: 0

摘要

本论文旨在鉴别具有较高断裂韧性的氧化锆陶瓷的微观结构。利用有限元软件ABAQUS CAE对zro2陶瓷的压痕测试进行了三维有限元模拟，并考虑了微观结构切割过程中的损伤演变。我们对zro2陶瓷的破坏行为进行了模拟，同时考虑了裂纹在晶粒内部(采用元消除技术)和晶界(采用两种不同微观结构的内聚区建模方法)的扩展。晶粒的本构行为被认为是正交各向异性弹性的。所进行的数值模拟为具体多尺度断裂力学问题的求解及其在材料设计中的应用提供了范例。

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3D Finite Element Simulations of Indentation Fracture Test of ZrO2-Ceramics with Taking into Account its Microstructure

The present contribution is aimed to identify the microstructure of zirconia ceramics possessing the higher fracture toughness. 3D-FE-simulations of indentation testing with taking into account damage evolution in the cut-out of a microstructure have been performed in ZrO2-ceramics by using the FEM-Software ABAQUS CAE. We have performed the simulation of failure behavior of ZrO2-ceramics, considering the crack propagation both in the interior of grains (with Element Elimination Technique) as well as in grain boundaries (with Cohesive Zone Modeling approach of two different micro-structures. The constitutive behavior of the grains has been considered to be orthotropic elastic. The performed simulations could serve as an example of the solution of specific multiscale fracture mechanical problem and its application to design of materials.

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2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)

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