Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/20527
Title: Improved hybrid stress finite elements with full rotational degrees of freedom for solid and shell analysis
Authors: Sim, Catherine Yun Shun.
Keywords: DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics
Issue Date: 1997
Abstract: The research work presented in this dissertation is on developing hybrid stress finite elements with full rotational degrees of freedom (d.o.f.s) based on an extended Hellinger-Reissner variational principle of linear elastic structural mechanics. Conventional finite elements are based on the minimum potential energy principle using assumed displacement only. On the contrary, hybrid stress elements are multivariate, that is, they employ more than one assumed field variables. In this case, both displacement and stress are most often engaged. This has an edge on conventional finite element method to produce more accurate elements. In comparison, conventional finite elements are prone to membrane/shear locking, sensitive to aspect ratio, have poor stress predictions and are susceptible to mesh distortion.
URI: http://hdl.handle.net/10356/20527
Rights: NANYANG TECHNOLOGICAL UNIVERSITY
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:SIMTECH Theses

Files in This Item:
File Description SizeFormat 
SIMTECH_THESES_11.pdf
  Restricted Access
12.52 MBAdobe PDFView/Open

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.