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Evaluation of the use of a singularity element in finite element analysis of center-cracked platesTwo different methods are applied to the analyses of finite width linear elastic plates with central cracks. Both methods give displacements as a primary part of the solution. One method makes use of Fourier transforms. The second method employs a coarse mesh of triangular second-order finite elements in conjunction with a single singularity element subjected to appropriate additional constraints. The displacements obtained by these two methods are in very good agreement. The results suggest considerable potential for the use of a cracked element for related crack problems, particularly in connection with the extension to nonlinear material behavior.
Document ID
19720011260
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Mendelson, A. (NASA Lewis Research Center Cleveland, OH, United States)
Gross, B. (NASA Lewis Research Center Cleveland, OH, United States)
Srawley, J., E. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 2, 2013
Publication Date
March 1, 1972
Subject Category
Structural Mechanics
Report/Patent Number
NASA-TN-D-6703
E-6680
Accession Number
72N18910
Funding Number(s)
PROJECT: RTOP 134-03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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