DocumentCode
2839121
Title
Notice of Retraction
The Numerical Simulation of Crack Propagation without Re-Meshing
Author
Shuai Yang ; Hong Wang ; Xiao-zhou Xia ; Hong Yuan
Author_Institution
Coll. of Civil & Transp. Eng., GDUT, Guangzhou, China
fYear
2009
fDate
19-20 Dec. 2009
Firstpage
1
Lastpage
3
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Based on the idea of the extended finite element method (XFEM), a new enriched displacement function, the exponent discontinuous function is presented to simulate the discontinuous character resulted from discontinuity such as crack, interface or joint. Simultaneously, for element containing the crack tip, the triangular basis function is introduced to embody singularity of the discontinuity tip. Referencing to examples of a cantilever deep beam and a rectangular plate, adopting the enriched exponent discontinuous function and enriched step function separately, their calculated results indicate that the results obtained by enriched exponent discontinuous function are more accurate for mode I crack, but as good as by enriched step function for mode II crack. These examples show the effectiveness and superiority of the improved XFEM.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Based on the idea of the extended finite element method (XFEM), a new enriched displacement function, the exponent discontinuous function is presented to simulate the discontinuous character resulted from discontinuity such as crack, interface or joint. Simultaneously, for element containing the crack tip, the triangular basis function is introduced to embody singularity of the discontinuity tip. Referencing to examples of a cantilever deep beam and a rectangular plate, adopting the enriched exponent discontinuous function and enriched step function separately, their calculated results indicate that the results obtained by enriched exponent discontinuous function are more accurate for mode I crack, but as good as by enriched step function for mode II crack. These examples show the effectiveness and superiority of the improved XFEM.
Keywords
beams (structures); cantilevers; cracks; finite element analysis; plates (structures); cantilever deep beam; crack propagation; crack tip; exponent discontinuous function; extended finite element; numerical simulation; rectangular plate; Civil engineering; Educational institutions; Equations; Fault diagnosis; Finite element methods; Metalworking machines; Numerical simulation; Stress; Structural beams; Transportation;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Engineering and Computer Science, 2009. ICIECS 2009. International Conference on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-4994-1
Type
conf
DOI
10.1109/ICIECS.2009.5364644
Filename
5364644
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