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Application of a substructuring technique to the problem of crack extension and closure (1974)

Armen, H., Jr.

In: CASI

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Publication Date: 2019-06-27

Description: A substructuring technique, originally developed for the efficient reanalysis of structures, is incorporated into the methodology associated with the plastic analysis of structures. An existing finite-element computer program that accounts for elastic-plastic material behavior under cyclic loading was modified to account for changing kinematic constraint conditions - crack growth and intermittent contact of crack surfaces in two dimensional regions. Application of the analysis is presented for a problem of a centercrack panel to demonstrate the efficiency and accuracy of the technique.

Keywords: STRUCTURAL MECHANICS

Type: NASA-CR-132458 , RE-480

Format: application/pdf

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