TY - JOUR
T1 - HYBRID-FINITE-ELEMENT ANALYSIS OF SOME NONLINEAR AND 3-DIMENSIONAL PROBLEMS OF ENGINEERING FRACTURE MECHANICS.
AU - Atluri, Satya N.
AU - Nakagaki, M.
AU - Kathiresan, K.
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1979
Y1 - 1979
N2 - In 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.
AB - In 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.
UR - http://www.scopus.com/inward/record.url?scp=0345759711&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:0345759711
VL - 1
SP - 14. 1-14. 32
JO - IEE Conference Publication
JF - IEE Conference Publication
SN - 0537-9989
Y2 - 9 May 1979 through 11 May 1979
ER -