Finite Element Analysis of Stress Concentration Problems Based on Cosserat Continuum Model

In the present work, the Cosserat micro-polar continuum theory is introduced into the FEM numerical model, which is used to simulate the stress concentration problems. The stress concentration phenomena around circular hole, elliptic hole and rhombic hole in plane strain condition, are numerically s...

Full description

Saved in:
Bibliographic Details
Published inApplied Mechanics and Materials Vol. 99-100; pp. 939 - 943
Main Authors Guan, Yu Hui, Tang, Hong Xiang
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.09.2011
Subjects
Finite element analysis
Rhombic Hole
Cosserat Continuum Model
Circular Hole
Stress Concentration
Elliptic Hole
Online AccessGet full text

Cover

More Information
Summary:In the present work, the Cosserat micro-polar continuum theory is introduced into the FEM numerical model, which is used to simulate the stress concentration problems. The stress concentration phenomena around circular hole, elliptic hole and rhombic hole in plane strain condition, are numerically simulated by two types of Cosserat continuum finite elements of the standard displacement and rotation u4ω4 and u8ω8 based on Dirichlet principle. It is indicated that, compared with the classical continuum finite element, these two Cosserat continuum finite elements can reflect the steep strain gradient and scale effects occurring in the stress concentration problems, and they can weaken the stress concentration and may get consistent solution with actual situation.
Bibliography:Selected, peer reviewed papers from the 2011 International Conference on Civil Engineering and Transportation, (ICCET 2011), 14-16 October, 2011, Jinan, China
ISBN:9783037852453
3037852453
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.99-100.939