Paper Info
Title
Generalized Finite Element Formulation of Fiber Beam Elements for Distributed Plasticity in Multiple Regions
Abstract
AbstractAbstractA generalized fiber beam element formulation is proposed to accurately capture the formation of multiple plastic regions with a coarse mesh, which usually occurs in the process of structural collapses. The strong gradient of displacement near plastic regions in a fiber beam element can be accurately described using a special plastic enrichment function. The two types of the plastic enrichment functions are suggested for the cases where the plastic region is located fully inside an element and spread over a node, respectively. In this approach, the optimal shape of the plastic enrichment function can be updated by reflecting plastic deformation at the previous loading step. Furthermore, if plastic regions appear in multiple locations in an element, the corresponding plastic enrichment function can be adaptively reconstructed on the basis of plastic region distribution without introducing additional degrees of freedom. The effectiveness of the proposed method is investigated in terms of accuracy and computational cost through several numerical experiments.
Year
DOI
Venue
2019
10.1111/mice.12389
Periodicals
DocType
Volume
Issue
Journal
34
2
ISSN
Citations 
PageRank 
1093-9687
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
KyoungSoo Park1119873.47
Hyungtae Kim232.13
Dae-Jin Kim3131.96