Analysis of the stress singularity field at a vertex in 3D-bonded structures having a slanted side surface

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:47

Article

Koguchi, Hideo¹  da Costa, Joviano Antonio¹ 

[1] Nagaoka Univ Technol, Dept Mech Engn, Grad Sch, Niigata 9402188, Japan

关键词: 3D joints;    Stress singularity;    Intensity of singularity;    Eigenanalysis;    BEM;   

DOI  :  10.1016/j.ijsolstr.2010.07.015

来源: Elsevier

【 摘 要 】

The stress singularity that occurs at a vertex in a joint with a slanted side surface is investigated. The orders of stress singularity at a vertex and at a point on stress singularity lines for various material properties are determined using eigenanalysis. The stress distribution on an interface and the intensity of stress singularity at the vertex are investigated using BEM. It is shown that the order of stress singularity at the vertex in the joints can be reduced by slanting a side surface so as to decrease the angle between the interface and the side surface. The results of BEM analysis reveal that the distribution of stress on the interface is influenced by the slanted side surface. Finally, the 3D intensities of the singularity for stress components which are continuous at the interface are newly defined and determined for various material combinations. (C) 2010 Elsevier Ltd. All rights reserved.

【 授权许可】

Free