Stress analysis of spherical inclusion composites using Voxel finite element mesh

被引：0

作者：

Liu, Baorui ^{[1
]}

Fang, Guodong ^{[2
]}

Liang, Jun ^{[2
]}

机构：

[1] Science and Technology on Reliability and Environment Engineering Laboratory, Beijing Institute of Structure and Environment Engineering, Beijing

[2] Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin

来源：

Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2015年 / 32卷 / 06期

关键词：

Finite element; Local stress averaging; Stress analysis; Stress concentration; Voxel mesh;

D O I：

10.13801/j.cnki.fhclxb.20150424.001

中图分类号：

学科分类号：

摘要：

Based on Voxel finite element mesh, the stress analysis of spherical inclusion composites was conducted. The obvious stress concentration phenomenon of elements neighboring interface was induced by the stepped interface within Voxel mesh. A local stress averaging method was proposed to treat the stress concentration induced by Voxel finite element mesh. In addition, the effects of stress averaging domain, stress averaging weight function and mesh density were taken into account. It is found that the local stress averaging method can effectively reduce the stress concentration of elements neighboring interface. But the averaging domain size should be not too big or too small. The two depth layer Voxel elements are the best choice as the averaging domain through calculation, which also has mesh independence. The method can be further used in the progressive damage evolution analysis of the spherical inclusion composites. © 2015, BUAA Culture Media Group Ltd.. All right reserved.

引用

页码：1769 / 1776

页数：7

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