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hybrid-finite-element analysis of some nonlinear and 3-dimensional problems of engineering fracture mechanicsIn this paper, efficient numerical methods for the analysis of crack-closure effects on fatigue-crack-growth-rates, in plane stress situations, and for the solution of stress-intensity factors for arbitrary shaped surface flaws in pressure vessels, are presented. For the former problem, an elastic-plastic finite element procedure valid for the case of finite deformation gradients is developed and crack growth is simulated by the translation of near-crack-tip elements with embedded plastic singularities. For the latter problem, an embedded-elastic-singularity hybrid finite element method, which leads to a direct evaluation of K-factors, is employed.
Document ID
19810031900
Document Type
Reprint (Version printed in journal)
Authors
Atluri, S. N.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Nakagaki, M.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Kathiresan, K.
(Georgia Institute of Technology Atlanta, Ga., United States)
Date Acquired
August 11, 2013
Publication Date
October 1, 1980
Subject Category
STRUCTURAL MECHANICS
Funding Number(s)
CONTRACT_GRANT: NSG-1351
CONTRACT_GRANT: W-7405-ENG-26
CONTRACT_GRANT: F49620-78-C-0085
Distribution Limits
Public
Copyright
Other