@Article{AAMM-8-3, author = {Yanhong, Bai and Yongke, Wu and Xie, Xiaoping}, title = {Uniform Convergence Analysis of a Higher Order Hybrid Stress Quadrilateral Finite Element Method for Linear Elasticity Problems}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2016}, volume = {8}, number = {3}, pages = {399--425}, abstract = {

This paper derives a higher order hybrid stress finite element method on quadrilateral meshes for linear plane elasticity problems. The method employs continuous piecewise bi-quadratic functions in local coordinates to approximate the displacement vector and a piecewise-independent 15-parameter mode to approximate the stress tensor. Error estimation shows that the method is free from Poisson-locking and has second-order accuracy in the energy norm. Numerical experiments confirm the theoretical results.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.2014.m548}, url = {https://global-sci.com/article/73338/uniform-convergence-analysis-of-a-higher-order-hybrid-stress-quadrilateral-finite-element-method-for-linear-elasticity-problems} }