HYBRID-FINITE-ELEMENT ANALYSIS OF SOME NONLINEAR AND 3-DIMENSIONAL PROBLEMS OF ENGINEERING FRACTURE MECHANICS.

Satya N. Atluri, M. Nakagaki, K. Kathiresan

Research output: Contribution to journalConference articlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)14. 1-14. 32
JournalIEE Conference Publication
Volume1
StatePublished - 1979
EventEng Appl of the Finite Elem Method, Pap Presented at the Int Conf - Hovik, Norw
Duration: May 9 1979May 11 1979

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