Computational & Technology Resources
an online resource for computational,
engineering & technology publications
Computational Science, Engineering & Technology Series
ISSN 1759-3158
CSETS: 3
COMPUTATIONAL MECHANICS FOR THE TWENTY-FIRST CENTURY
Edited by: B.H.V. Topping
Chapter 6

Hybrid Stress Elements for Accurate Solution of Elasticity Problems with Traction-Free Segments

B.L. Karihaloo and Q.Z. Xiao

School of Civil Engineering, University of Wales, Cardiff, Wales, United Kingdom

Full Bibliographic Reference for this chapter
B.L. Karihaloo, Q.Z. Xiao, "Hybrid Stress Elements for Accurate Solution of Elasticity Problems with Traction-Free Segments", in B.H.V. Topping, (Editor), "Computational Mechanics for the Twenty-First Century", Saxe-Coburg Publications, Stirlingshire, UK, Chapter 6, pp 109-125, 2000. doi:10.4203/csets.3.6
Abstract
Special hybrid stress elements that give accurate solutions of elasticity problems with traction-free segments are introduced. The elements are formulated based on the Hellinger-Reissner principle. The trial stresses in these elements have been modified to ensure that the traction-free boundary conditions are exactly satisfied. The results of sample examples show that these elements reduce shear locking and ensure good accuracy of displacement and stress fields for a slender component or a body with stress concentration even when the mesh is considerably distorted.

purchase the full-text of this chapter (price £20)

go to the previous chapter
go to the next chapter
return to the table of contents
return to the book description
purchase this book (price £138 +P&P)