Journal
COMPUTERS & STRUCTURES
Volume 88, Issue 23-24, Pages 1419-1443Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2008.07.006
Keywords
Smoothed finite element; SFEM; Extended finite element method; XFEM; Convergence; Accuracy
Funding
- Engineering and Physical Sciences Research Council [EP/G042705/1] Funding Source: researchfish
- EPSRC [EP/G042705/1] Funding Source: UKRI
Ask authors/readers for more resources
We present in this paper recent achievements realised on the application of strain smoothing in finite elements and propose suitable extensions to problems with discontinuities and singularities The numerical results indicate that for 20 and 3D continuum locking can be avoided New plate and shell formulations that avoid both shear and membrane locking are also briefly reviewed The principle is then extended to partition of unity enrichment to simplify numerical integration of discontinuous approximations in the extended finite element method Examples are presented to test the new elements for problems involving cracks in linear elastic continua and cracked plates In the latter case the proposed formulation suppresses locking and yields elements which behave very well even in the thin plate limit Two important features of the set of elements presented are their insensitivity to mesh distortion and a lower computational cost than standard finite elements for the same accuracy These elements are easily implemented in existing codes since they only require the modification of the discretized gradient operator B (C) 2008 Elsevier Ltd All rights reserved
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available