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.
PY - 1980
Y1 - 1980
N2 - In this paper, efficient numerical methods for the analysis of crack-closure effects on fatigue-crackgrowth-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-crackgrowth-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=0018525838&partnerID=8YFLogxK
U2 - 10.1016/0045-7949(80)90126-1
DO - 10.1016/0045-7949(80)90126-1
M3 - Article
AN - SCOPUS:0018525838
VL - 12
SP - 511
EP - 520
JO - Computers and Structures
JF - Computers and Structures
SN - 0045-7949
IS - 4
ER -