Publication Date:
2016-06-07
Description:
The results of numerical experiments are presented in which a posteriori estimators of error in strain energy were examined on the basis of a typical problem in linear elastic fracture mechanics. Two estimators were found to give close upper and lower bounds for the strain energy error. The potential significance of this is that the same estimators may provide a suitable basis for adaptive redistribution of the degrees of freedom in finite element models.
Keywords:
STRUCTURAL MECHANICS
Type:
NASA. Langley Res. Center Res. in Computerized Structural Analysis and Syn.,; p 43-50
Format:
application/pdf
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