Recent computational experiences with residual and flux-projection error estimators Conference Paper

abstract

• Computational experiences which demonstrate the performance of two popular error estimators for finite-element approximations of the equations of plane linear elasticity are presented. The comparison involves element-residual and flux-projection error estimators for biquadratic elements. The numerical results indicate that element-residual estimates give reasonable predictions for the global energy-norm of the error for the types of meshes and solutions tested. From the results it is also clear that a popular class of flux-projection error estimators may lead to dangerous underestimation of the error for approximations obtained using biquadratic finite elements.

authors

• Strouboulis, Theofanis

published proceedings

• American Society of Mechanical Engineers, Applied Mechanics Division, AMD

author list (cited authors)

• Strouboulis, T., Upadhyay, C. S., & Gangaraj, S. K.

complete list of authors

• Strouboulis, T||Upadhyay, CS||Gangaraj, SK

publication date

• January 1992

published in

• ASME Applied Mechanics Division -Publications- Amd  Journal

International Standard Book Number (ISBN) 10

• 0791811344

start page

• 335

end page

• 362

volume

• 157